/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_SUM.epf -i ../../../trunk/examples/svcomp/psyco/psyco_security.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:06:46,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:06:46,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:06:46,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:06:46,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:06:46,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:06:46,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:06:46,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:06:46,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:06:46,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:06:46,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:06:46,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:06:46,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:06:46,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:06:46,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:06:46,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:06:46,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:06:46,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:06:46,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:06:46,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:06:46,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:06:46,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:06:46,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:06:46,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:06:46,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:06:46,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:06:46,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:06:46,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:06:46,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:06:46,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:06:46,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:06:46,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:06:46,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:06:46,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:06:46,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:06:46,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:06:46,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:06:46,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:06:46,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:06:46,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:06:46,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:06:46,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:06:46,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:06:46,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:06:46,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:06:46,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:06:46,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:06:46,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:06:46,518 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:06:46,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:06:46,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:06:46,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:06:46,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:06:46,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:06:46,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:06:46,519 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:06:46,519 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:06:46,521 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:06:46,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:06:46,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:06:46,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:06:46,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:06:46,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:06:46,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:06:46,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:06:46,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:06:46,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:06:46,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:06:46,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:06:46,523 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:06:46,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:06:46,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:06:46,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:06:46,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:06:46,524 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:06:46,525 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:06:46,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:06:46,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:06:46,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:06:46,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:06:46,741 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:06:46,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security.c [2022-01-11 05:06:46,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931cfddcc/ddad583bc43b46e59edb90685fd65286/FLAG2c5059fd2 [2022-01-11 05:06:47,154 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:06:47,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c [2022-01-11 05:06:47,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931cfddcc/ddad583bc43b46e59edb90685fd65286/FLAG2c5059fd2 [2022-01-11 05:06:47,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931cfddcc/ddad583bc43b46e59edb90685fd65286 [2022-01-11 05:06:47,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:06:47,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:06:47,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:06:47,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:06:47,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:06:47,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a95c268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47, skipping insertion in model container [2022-01-11 05:06:47,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:06:47,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:06:47,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c[12744,12757] [2022-01-11 05:06:47,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:06:47,423 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:06:47,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c[12744,12757] [2022-01-11 05:06:47,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:06:47,473 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:06:47,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47 WrapperNode [2022-01-11 05:06:47,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:06:47,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:06:47,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:06:47,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:06:47,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,512 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 248 [2022-01-11 05:06:47,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:06:47,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:06:47,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:06:47,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:06:47,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:06:47,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:06:47,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:06:47,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:06:47,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:47,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:06:47,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:06:47,593 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) [2022-01-11 05:06:47,602 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 [2022-01-11 05:06:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:06:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:06:47,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:06:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:06:47,691 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:06:47,692 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:06:47,894 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:06:47,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:06:47,908 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-01-11 05:06:47,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:06:47 BoogieIcfgContainer [2022-01-11 05:06:47,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:06:47,910 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:06:47,910 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:06:47,911 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:06:47,913 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:06:47" (1/1) ... [2022-01-11 05:06:48,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:06:48 BasicIcfg [2022-01-11 05:06:48,008 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:06:48,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:06:48,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:06:48,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:06:48,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:06:47" (1/4) ... [2022-01-11 05:06:48,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51987c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:06:48, skipping insertion in model container [2022-01-11 05:06:48,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:06:47" (2/4) ... [2022-01-11 05:06:48,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51987c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:06:48, skipping insertion in model container [2022-01-11 05:06:48,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:06:47" (3/4) ... [2022-01-11 05:06:48,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51987c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:06:48, skipping insertion in model container [2022-01-11 05:06:48,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:06:48" (4/4) ... [2022-01-11 05:06:48,019 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.cTransformedIcfg [2022-01-11 05:06:48,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:06:48,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 05:06:48,050 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:06:48,054 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 [2022-01-11 05:06:48,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 05:06:48,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 05:06:48,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1014808776, now seen corresponding path program 1 times [2022-01-11 05:06:48,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8732514] [2022-01-11 05:06:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:06:48,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8732514] [2022-01-11 05:06:48,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8732514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:06:48,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641540635] [2022-01-11 05:06:48,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:06:48,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:06:48,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:06:48,237 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.9342105263157894) internal successors, (147), 77 states have internal predecessors, (147), 0 states have call successors, (0), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,264 INFO L93 Difference]: Finished difference Result 154 states and 292 transitions. [2022-01-11 05:06:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:06:48,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-01-11 05:06:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,272 INFO L225 Difference]: With dead ends: 154 [2022-01-11 05:06:48,272 INFO L226 Difference]: Without dead ends: 74 [2022-01-11 05:06:48,274 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 [2022-01-11 05:06:48,277 INFO L933 BasicCegarLoop]: 120 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, 120 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 [2022-01-11 05:06:48,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-11 05:06:48,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-01-11 05:06:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 73 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2022-01-11 05:06:48,308 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 9 [2022-01-11 05:06:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,308 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2022-01-11 05:06:48,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2022-01-11 05:06:48,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-11 05:06:48,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:06:48,311 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1424839149, now seen corresponding path program 1 times [2022-01-11 05:06:48,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813235291] [2022-01-11 05:06:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:06:48,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813235291] [2022-01-11 05:06:48,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813235291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261231231] [2022-01-11 05:06:48,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,378 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,434 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2022-01-11 05:06:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:48,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-01-11 05:06:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,436 INFO L225 Difference]: With dead ends: 149 [2022-01-11 05:06:48,436 INFO L226 Difference]: Without dead ends: 77 [2022-01-11 05:06:48,436 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 [2022-01-11 05:06:48,437 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:48,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 190 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-01-11 05:06:48,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-01-11 05:06:48,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 76 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 112 transitions. [2022-01-11 05:06:48,444 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 112 transitions. Word has length 10 [2022-01-11 05:06:48,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,444 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 112 transitions. [2022-01-11 05:06:48,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,444 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2022-01-11 05:06:48,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 05:06:48,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,445 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:06:48,445 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1679815819, now seen corresponding path program 1 times [2022-01-11 05:06:48,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021976914] [2022-01-11 05:06:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:06:48,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021976914] [2022-01-11 05:06:48,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021976914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394378740] [2022-01-11 05:06:48,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,500 INFO L87 Difference]: Start difference. First operand 77 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,546 INFO L93 Difference]: Finished difference Result 157 states and 229 transitions. [2022-01-11 05:06:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:48,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-01-11 05:06:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,548 INFO L225 Difference]: With dead ends: 157 [2022-01-11 05:06:48,548 INFO L226 Difference]: Without dead ends: 83 [2022-01-11 05:06:48,548 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 [2022-01-11 05:06:48,549 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 21 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:48,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 174 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-01-11 05:06:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2022-01-11 05:06:48,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.45) internal successors, (116), 80 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2022-01-11 05:06:48,554 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 15 [2022-01-11 05:06:48,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,554 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2022-01-11 05:06:48,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,555 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2022-01-11 05:06:48,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 05:06:48,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,555 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:06:48,555 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,556 INFO L85 PathProgramCache]: Analyzing trace with hash 941331296, now seen corresponding path program 1 times [2022-01-11 05:06:48,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438271690] [2022-01-11 05:06:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:06:48,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438271690] [2022-01-11 05:06:48,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438271690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304605676] [2022-01-11 05:06:48,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,583 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,615 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2022-01-11 05:06:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:48,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-01-11 05:06:48,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,616 INFO L225 Difference]: With dead ends: 107 [2022-01-11 05:06:48,616 INFO L226 Difference]: Without dead ends: 99 [2022-01-11 05:06:48,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,617 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:48,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 182 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-01-11 05:06:48,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2022-01-11 05:06:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 89 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) [2022-01-11 05:06:48,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2022-01-11 05:06:48,623 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 18 [2022-01-11 05:06:48,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,623 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2022-01-11 05:06:48,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,623 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2022-01-11 05:06:48,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-11 05:06:48,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,624 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:06:48,624 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1711211651, now seen corresponding path program 1 times [2022-01-11 05:06:48,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059972204] [2022-01-11 05:06:48,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:06:48,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059972204] [2022-01-11 05:06:48,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059972204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330527959] [2022-01-11 05:06:48,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,652 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,674 INFO L93 Difference]: Finished difference Result 153 states and 219 transitions. [2022-01-11 05:06:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 22 [2022-01-11 05:06:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,675 INFO L225 Difference]: With dead ends: 153 [2022-01-11 05:06:48,675 INFO L226 Difference]: Without dead ends: 66 [2022-01-11 05:06:48,676 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 [2022-01-11 05:06:48,677 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 56 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:48,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 99 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-01-11 05:06:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-01-11 05:06:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 65 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) [2022-01-11 05:06:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2022-01-11 05:06:48,681 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 22 [2022-01-11 05:06:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,681 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2022-01-11 05:06:48,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2022-01-11 05:06:48,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-11 05:06:48,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,682 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:06:48,682 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1871978791, now seen corresponding path program 1 times [2022-01-11 05:06:48,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386350244] [2022-01-11 05:06:48,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:06:48,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386350244] [2022-01-11 05:06:48,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386350244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577988556] [2022-01-11 05:06:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,715 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,760 INFO L93 Difference]: Finished difference Result 154 states and 224 transitions. [2022-01-11 05:06:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:48,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 26 [2022-01-11 05:06:48,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,761 INFO L225 Difference]: With dead ends: 154 [2022-01-11 05:06:48,761 INFO L226 Difference]: Without dead ends: 107 [2022-01-11 05:06:48,761 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 [2022-01-11 05:06:48,762 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 39 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:48,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 139 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-01-11 05:06:48,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 95. [2022-01-11 05:06:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.425531914893617) internal successors, (134), 94 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2022-01-11 05:06:48,769 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 134 transitions. Word has length 26 [2022-01-11 05:06:48,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,769 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 134 transitions. [2022-01-11 05:06:48,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,769 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 134 transitions. [2022-01-11 05:06:48,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 05:06:48,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,770 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:06:48,770 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,771 INFO L85 PathProgramCache]: Analyzing trace with hash 495671524, now seen corresponding path program 1 times [2022-01-11 05:06:48,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884309886] [2022-01-11 05:06:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:06:48,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884309886] [2022-01-11 05:06:48,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884309886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208935018] [2022-01-11 05:06:48,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,801 INFO L87 Difference]: Start difference. First operand 95 states and 134 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,825 INFO L93 Difference]: Finished difference Result 163 states and 231 transitions. [2022-01-11 05:06:48,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:48,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 27 [2022-01-11 05:06:48,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,826 INFO L225 Difference]: With dead ends: 163 [2022-01-11 05:06:48,826 INFO L226 Difference]: Without dead ends: 89 [2022-01-11 05:06:48,827 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 [2022-01-11 05:06:48,828 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 26 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:48,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 126 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-01-11 05:06:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2022-01-11 05:06:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.372093023255814) internal successors, (118), 86 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2022-01-11 05:06:48,834 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 27 [2022-01-11 05:06:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,834 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-01-11 05:06:48,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2022-01-11 05:06:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 05:06:48,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,835 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:06:48,835 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,836 INFO L85 PathProgramCache]: Analyzing trace with hash -269315474, now seen corresponding path program 1 times [2022-01-11 05:06:48,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840285705] [2022-01-11 05:06:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:06:48,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840285705] [2022-01-11 05:06:48,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840285705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440984974] [2022-01-11 05:06:48,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,899 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:48,931 INFO L93 Difference]: Finished difference Result 134 states and 182 transitions. [2022-01-11 05:06:48,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:48,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 27 [2022-01-11 05:06:48,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:48,933 INFO L225 Difference]: With dead ends: 134 [2022-01-11 05:06:48,933 INFO L226 Difference]: Without dead ends: 68 [2022-01-11 05:06:48,934 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 [2022-01-11 05:06:48,935 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 29 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:48,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 108 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:48,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-01-11 05:06:48,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-01-11 05:06:48,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 67 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2022-01-11 05:06:48,941 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 27 [2022-01-11 05:06:48,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:48,941 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2022-01-11 05:06:48,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:48,942 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2022-01-11 05:06:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 05:06:48,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:06:48,942 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:48,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:06:48,943 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:06:48,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:06:48,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1361373201, now seen corresponding path program 1 times [2022-01-11 05:06:48,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:06:48,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343016668] [2022-01-11 05:06:48,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:06:48,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:06:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:06:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:06:48,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:06:48,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343016668] [2022-01-11 05:06:48,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343016668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:06:48,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:06:48,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:06:48,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689415306] [2022-01-11 05:06:48,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:06:48,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:06:48,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:06:48,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:06:48,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:06:48,996 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:49,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:06:49,012 INFO L93 Difference]: Finished difference Result 111 states and 145 transitions. [2022-01-11 05:06:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:06:49,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 28 [2022-01-11 05:06:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:06:49,013 INFO L225 Difference]: With dead ends: 111 [2022-01-11 05:06:49,013 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 05:06:49,013 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 [2022-01-11 05:06:49,014 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 16 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:06:49,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 106 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:06:49,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 05:06:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 05:06:49,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 05:06:49,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-01-11 05:06:49,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:06:49,015 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 05:06:49,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:06:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 05:06:49,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 05:06:49,018 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 05:06:49,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:06:49,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 05:06:49,062 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 05:06:49,062 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 05:06:49,063 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0)) (and (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 3) (<= 4 |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|))) [2022-01-11 05:06:49,063 INFO L854 garLoopResultBuilder]: At program point L383(lines 24 387) the Hoare annotation is: (or (and (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 3) (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 2)) (and (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 3) (<= 4 |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|)) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (and (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 2) (= |ULTIMATE.start_ULTIMATE.start_main_~this_state~0#1Int| 0))) [2022-01-11 05:06:49,063 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 387) no Hoare annotation was computed. [2022-01-11 05:06:49,063 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2022-01-11 05:06:49,063 INFO L861 garLoopResultBuilder]: At program point L15(lines 15 392) the Hoare annotation is: true [2022-01-11 05:06:49,063 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 45) no Hoare annotation was computed. [2022-01-11 05:06:49,063 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 100) no Hoare annotation was computed. [2022-01-11 05:06:49,063 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 05:06:49,064 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 43) no Hoare annotation was computed. [2022-01-11 05:06:49,064 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 65) no Hoare annotation was computed. [2022-01-11 05:06:49,064 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 184) no Hoare annotation was computed. [2022-01-11 05:06:49,064 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 05:06:49,065 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2022-01-11 05:06:49,065 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 63) no Hoare annotation was computed. [2022-01-11 05:06:49,065 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2022-01-11 05:06:49,065 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 117) no Hoare annotation was computed. [2022-01-11 05:06:49,066 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 284) no Hoare annotation was computed. [2022-01-11 05:06:49,066 INFO L854 garLoopResultBuilder]: At program point L373(lines 15 392) the Hoare annotation is: false [2022-01-11 05:06:49,066 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2022-01-11 05:06:49,066 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 79) no Hoare annotation was computed. [2022-01-11 05:06:49,066 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 97) no Hoare annotation was computed. [2022-01-11 05:06:49,066 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2022-01-11 05:06:49,066 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 133) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 201) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 384) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 74) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 95) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 110) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 131) no Hoare annotation was computed. [2022-01-11 05:06:49,067 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 149) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 199) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 217) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 301) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 90) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 126) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 147) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 165) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 194) no Hoare annotation was computed. [2022-01-11 05:06:49,068 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 215) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 233) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 299) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 317) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 142) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 163) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 181) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 210) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 231) no Hoare annotation was computed. [2022-01-11 05:06:49,069 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 249) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L292(lines 292 294) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 315) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 333) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 158) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 179) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 226) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 247) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 265) no Hoare annotation was computed. [2022-01-11 05:06:49,070 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 310) no Hoare annotation was computed. [2022-01-11 05:06:49,071 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 331) no Hoare annotation was computed. [2022-01-11 05:06:49,071 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 349) no Hoare annotation was computed. [2022-01-11 05:06:49,071 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 174) no Hoare annotation was computed. [2022-01-11 05:06:49,071 INFO L858 garLoopResultBuilder]: For program point L240(lines 240 242) no Hoare annotation was computed. [2022-01-11 05:06:49,072 INFO L858 garLoopResultBuilder]: For program point L252(lines 252 263) no Hoare annotation was computed. [2022-01-11 05:06:49,073 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 281) no Hoare annotation was computed. [2022-01-11 05:06:49,073 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 326) no Hoare annotation was computed. [2022-01-11 05:06:49,073 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 347) no Hoare annotation was computed. [2022-01-11 05:06:49,073 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 365) no Hoare annotation was computed. [2022-01-11 05:06:49,073 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 258) no Hoare annotation was computed. [2022-01-11 05:06:49,073 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 279) no Hoare annotation was computed. [2022-01-11 05:06:49,074 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 342) no Hoare annotation was computed. [2022-01-11 05:06:49,074 INFO L858 garLoopResultBuilder]: For program point L352(lines 352 363) no Hoare annotation was computed. [2022-01-11 05:06:49,074 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 381) no Hoare annotation was computed. [2022-01-11 05:06:49,075 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2022-01-11 05:06:49,077 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 358) no Hoare annotation was computed. [2022-01-11 05:06:49,077 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 379) no Hoare annotation was computed. [2022-01-11 05:06:49,081 INFO L858 garLoopResultBuilder]: For program point L372(lines 372 374) no Hoare annotation was computed. [2022-01-11 05:06:49,084 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:06:49,086 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:06:49,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:06:49 BasicIcfg [2022-01-11 05:06:49,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:06:49,101 INFO L158 Benchmark]: Toolchain (without parser) took 1926.01ms. Allocated memory was 185.6MB in the beginning and 285.2MB in the end (delta: 99.6MB). Free memory was 130.6MB in the beginning and 235.7MB in the end (delta: -105.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:06:49,102 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:06:49,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.72ms. Allocated memory is still 185.6MB. Free memory was 130.5MB in the beginning and 154.8MB in the end (delta: -24.3MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-01-11 05:06:49,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.12ms. Allocated memory is still 185.6MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 05:06:49,104 INFO L158 Benchmark]: Boogie Preprocessor took 40.33ms. Allocated memory is still 185.6MB. Free memory was 152.7MB in the beginning and 151.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:06:49,104 INFO L158 Benchmark]: RCFGBuilder took 354.97ms. Allocated memory is still 185.6MB. Free memory was 151.1MB in the beginning and 135.9MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-11 05:06:49,104 INFO L158 Benchmark]: IcfgTransformer took 98.91ms. Allocated memory is still 185.6MB. Free memory was 135.9MB in the beginning and 129.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-11 05:06:49,105 INFO L158 Benchmark]: TraceAbstraction took 1091.74ms. Allocated memory was 185.6MB in the beginning and 285.2MB in the end (delta: 99.6MB). Free memory was 129.1MB in the beginning and 235.7MB in the end (delta: -106.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:06:49,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 294.72ms. Allocated memory is still 185.6MB. Free memory was 130.5MB in the beginning and 154.8MB in the end (delta: -24.3MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.12ms. Allocated memory is still 185.6MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.33ms. Allocated memory is still 185.6MB. Free memory was 152.7MB in the beginning and 151.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 354.97ms. Allocated memory is still 185.6MB. Free memory was 151.1MB in the beginning and 135.9MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * IcfgTransformer took 98.91ms. Allocated memory is still 185.6MB. Free memory was 135.9MB in the beginning and 129.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 1091.74ms. Allocated memory was 185.6MB in the beginning and 285.2MB in the end (delta: 99.6MB). Free memory was 129.1MB in the beginning and 235.7MB in the end (delta: -106.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 1244 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 400 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 844 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=6, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 42 HoareAnnotationTreeSize, 4 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 43/43 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((0bv32 == this_state && q == 2bv32) || (~bvule32(4bv32, q) && 3bv32 == this_state)) || q == 0bv32) || (2bv32 == this_state && q == 3bv32) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (~bvule32(4bv32, q) && 3bv32 == this_state) || (0bv32 == this_state && q == 0bv32) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-01-11 05:06:49,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...