/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:15:57,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:15:57,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:15:57,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:15:57,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:15:57,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:15:57,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:15:57,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:15:57,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:15:57,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:15:57,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:15:57,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:15:57,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:15:57,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:15:57,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:15:57,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:15:57,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:15:57,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:15:57,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:15:57,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:15:57,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:15:57,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:15:57,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:15:57,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:15:57,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:15:57,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:15:57,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:15:57,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:15:57,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:15:57,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:15:57,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:15:57,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:15:57,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:15:57,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:15:57,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:15:57,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:15:57,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:15:57,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:15:57,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:15:57,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:15:57,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:15:57,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:15:57,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:15:57,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:15:57,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:15:57,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:15:57,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:15:57,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:15:57,558 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:15:57,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:15:57,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:15:57,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:15:57,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:15:57,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:15:57,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:15:57,559 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:15:57,559 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:15:57,560 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:15:57,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:15:57,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:15:57,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:15:57,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:15:57,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:15:57,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:15:57,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:15:57,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:15:57,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:15:57,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:15:57,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:15:57,561 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:15:57,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:15:57,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:15:57,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:15:57,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:15:57,562 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:15:57,563 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:15:57,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:15:57,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:15:57,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:15:57,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:15:57,802 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:15:57,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_productSimulator.cil.c [2022-01-10 12:15:57,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73de17e6c/a348882e532e471b839966bccc4866d0/FLAG0eea12882 [2022-01-10 12:15:58,461 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:15:58,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_productSimulator.cil.c [2022-01-10 12:15:58,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73de17e6c/a348882e532e471b839966bccc4866d0/FLAG0eea12882 [2022-01-10 12:15:58,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73de17e6c/a348882e532e471b839966bccc4866d0 [2022-01-10 12:15:58,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:15:58,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:15:58,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:15:58,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:15:58,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:15:58,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:15:58" (1/1) ... [2022-01-10 12:15:58,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bee22ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:58, skipping insertion in model container [2022-01-10 12:15:58,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:15:58" (1/1) ... [2022-01-10 12:15:58,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:15:58,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:15:59,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2022-01-10 12:15:59,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:59,638 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:15:59,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:15:59,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2022-01-10 12:15:59,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:59,774 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:15:59,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2022-01-10 12:15:59,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:15:59,952 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:15:59,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59 WrapperNode [2022-01-10 12:15:59,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:15:59,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:15:59,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:15:59,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:15:59,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:00,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:02,690 INFO L137 Inliner]: procedures = 154, calls = 292, calls flagged for inlining = 193, calls inlined = 18317, statements flattened = 249346 [2022-01-10 12:16:02,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:16:02,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:16:02,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:16:02,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:16:02,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:02,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:03,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:03,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:04,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:05,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:05,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:06,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:16:06,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:16:06,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:16:06,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:16:06,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (1/1) ... [2022-01-10 12:16:06,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:16:06,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:16:06,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:16:06,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:16:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:16:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:16:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:16:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:16:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:16:06,734 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:16:06,735 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:16:47,057 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:16:47,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:16:47,268 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:16:47,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:16:47 BoogieIcfgContainer [2022-01-10 12:16:47,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:16:47,301 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:16:47,301 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:16:47,302 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:16:47,304 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:16:47" (1/1) ... [2022-01-10 12:16:52,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:16:52 BasicIcfg [2022-01-10 12:16:52,784 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:16:52,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:16:52,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:16:52,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:16:52,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:15:58" (1/4) ... [2022-01-10 12:16:52,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3903c51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:16:52, skipping insertion in model container [2022-01-10 12:16:52,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:15:59" (2/4) ... [2022-01-10 12:16:52,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3903c51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:16:52, skipping insertion in model container [2022-01-10 12:16:52,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:16:47" (3/4) ... [2022-01-10 12:16:52,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3903c51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:16:52, skipping insertion in model container [2022-01-10 12:16:52,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:16:52" (4/4) ... [2022-01-10 12:16:52,804 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec3_productSimulator.cil.cTransformedIcfg [2022-01-10 12:16:52,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:16:52,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 128 error locations. [2022-01-10 12:16:52,925 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:16:52,930 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:16:52,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2022-01-10 12:16:53,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 40854 states, 40725 states have (on average 1.547084100675261) internal successors, (63005), 40853 states have internal predecessors, (63005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 12:16:53,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:53,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:16:53,339 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2022-01-10 12:16:53,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:53,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1463543131, now seen corresponding path program 1 times [2022-01-10 12:16:53,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:53,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277941946] [2022-01-10 12:16:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:53,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:53,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:53,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277941946] [2022-01-10 12:16:53,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277941946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:53,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:53,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:16:53,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310049464] [2022-01-10 12:16:53,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:53,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:16:53,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:53,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:16:53,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:16:53,783 INFO L87 Difference]: Start difference. First operand has 40854 states, 40725 states have (on average 1.547084100675261) internal successors, (63005), 40853 states have internal predecessors, (63005), 0 states have call successors, (0), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:55,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:55,183 INFO L93 Difference]: Finished difference Result 81207 states and 125232 transitions. [2022-01-10 12:16:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:16:55,188 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-10 12:16:55,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:55,314 INFO L225 Difference]: With dead ends: 81207 [2022-01-10 12:16:55,315 INFO L226 Difference]: Without dead ends: 26902 [2022-01-10 12:16:55,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:16:55,420 INFO L933 BasicCegarLoop]: 62747 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, 62747 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:55,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 62747 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:16:55,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26902 states. [2022-01-10 12:16:56,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26902 to 26902. [2022-01-10 12:16:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26902 states, 26774 states have (on average 1.5529244789721373) internal successors, (41578), 26901 states have internal predecessors, (41578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26902 states to 26902 states and 41578 transitions. [2022-01-10 12:16:56,441 INFO L78 Accepts]: Start accepts. Automaton has 26902 states and 41578 transitions. Word has length 62 [2022-01-10 12:16:56,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:56,442 INFO L470 AbstractCegarLoop]: Abstraction has 26902 states and 41578 transitions. [2022-01-10 12:16:56,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:56,442 INFO L276 IsEmpty]: Start isEmpty. Operand 26902 states and 41578 transitions. [2022-01-10 12:16:56,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 12:16:56,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:56,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:16:56,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:16:56,446 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2022-01-10 12:16:56,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:56,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1109240838, now seen corresponding path program 1 times [2022-01-10 12:16:56,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:56,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970267900] [2022-01-10 12:16:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:56,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:56,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:56,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970267900] [2022-01-10 12:16:56,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970267900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:56,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:56,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:16:56,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275772322] [2022-01-10 12:16:56,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:56,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:16:56,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:56,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:16:56,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:16:56,540 INFO L87 Difference]: Start difference. First operand 26902 states and 41578 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:57,134 INFO L93 Difference]: Finished difference Result 36780 states and 56934 transitions. [2022-01-10 12:16:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:16:57,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-01-10 12:16:57,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:57,158 INFO L225 Difference]: With dead ends: 36780 [2022-01-10 12:16:57,158 INFO L226 Difference]: Without dead ends: 9898 [2022-01-10 12:16:57,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:16:57,203 INFO L933 BasicCegarLoop]: 15214 mSDtfsCounter, 15258 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15258 SdHoareTripleChecker+Valid, 15220 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:57,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15258 Valid, 15220 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:16:57,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9898 states. [2022-01-10 12:16:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9898 to 9898. [2022-01-10 12:16:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9898 states, 9834 states have (on average 1.5557250355908074) internal successors, (15299), 9897 states have internal predecessors, (15299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:57,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9898 states to 9898 states and 15299 transitions. [2022-01-10 12:16:57,638 INFO L78 Accepts]: Start accepts. Automaton has 9898 states and 15299 transitions. Word has length 63 [2022-01-10 12:16:57,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:57,639 INFO L470 AbstractCegarLoop]: Abstraction has 9898 states and 15299 transitions. [2022-01-10 12:16:57,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9898 states and 15299 transitions. [2022-01-10 12:16:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 12:16:57,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:57,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:16:57,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:16:57,648 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2022-01-10 12:16:57,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:57,648 INFO L85 PathProgramCache]: Analyzing trace with hash 702119320, now seen corresponding path program 1 times [2022-01-10 12:16:57,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:57,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060245447] [2022-01-10 12:16:57,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:57,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:57,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:57,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060245447] [2022-01-10 12:16:57,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060245447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:57,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:57,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:16:57,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473904539] [2022-01-10 12:16:57,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:57,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:16:57,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:57,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:16:57,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:16:57,789 INFO L87 Difference]: Start difference. First operand 9898 states and 15299 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:58,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:58,697 INFO L93 Difference]: Finished difference Result 20946 states and 32418 transitions. [2022-01-10 12:16:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:16:58,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 12:16:58,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:58,726 INFO L225 Difference]: With dead ends: 20946 [2022-01-10 12:16:58,726 INFO L226 Difference]: Without dead ends: 11066 [2022-01-10 12:16:58,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:16:58,749 INFO L933 BasicCegarLoop]: 16131 mSDtfsCounter, 11036 mSDsluCounter, 5682 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11036 SdHoareTripleChecker+Valid, 21813 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:58,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11036 Valid, 21813 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:16:58,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-01-10 12:16:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 11066. [2022-01-10 12:16:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11066 states, 11002 states have (on average 1.5436284311943282) internal successors, (16983), 11065 states have internal predecessors, (16983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11066 states to 11066 states and 16983 transitions. [2022-01-10 12:16:59,047 INFO L78 Accepts]: Start accepts. Automaton has 11066 states and 16983 transitions. Word has length 67 [2022-01-10 12:16:59,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:16:59,048 INFO L470 AbstractCegarLoop]: Abstraction has 11066 states and 16983 transitions. [2022-01-10 12:16:59,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 11066 states and 16983 transitions. [2022-01-10 12:16:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 12:16:59,051 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:16:59,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:16:59,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:16:59,051 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2022-01-10 12:16:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:16:59,052 INFO L85 PathProgramCache]: Analyzing trace with hash -591361705, now seen corresponding path program 1 times [2022-01-10 12:16:59,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:16:59,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419680179] [2022-01-10 12:16:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:16:59,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:16:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:16:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:16:59,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:16:59,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419680179] [2022-01-10 12:16:59,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419680179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:16:59,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:16:59,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:16:59,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293720503] [2022-01-10 12:16:59,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:16:59,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:16:59,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:16:59,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:16:59,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:16:59,129 INFO L87 Difference]: Start difference. First operand 11066 states and 16983 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:16:59,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:16:59,721 INFO L93 Difference]: Finished difference Result 21356 states and 32965 transitions. [2022-01-10 12:16:59,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:16:59,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-01-10 12:16:59,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:16:59,757 INFO L225 Difference]: With dead ends: 21356 [2022-01-10 12:16:59,757 INFO L226 Difference]: Without dead ends: 12508 [2022-01-10 12:16:59,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:16:59,780 INFO L933 BasicCegarLoop]: 15404 mSDtfsCounter, 7991 mSDsluCounter, 7409 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7991 SdHoareTripleChecker+Valid, 22813 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:16:59,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7991 Valid, 22813 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:16:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12508 states. [2022-01-10 12:17:00,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12508 to 12508. [2022-01-10 12:17:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12508 states, 12444 states have (on average 1.5598682095789136) internal successors, (19411), 12507 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12508 states to 12508 states and 19411 transitions. [2022-01-10 12:17:00,264 INFO L78 Accepts]: Start accepts. Automaton has 12508 states and 19411 transitions. Word has length 68 [2022-01-10 12:17:00,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:17:00,265 INFO L470 AbstractCegarLoop]: Abstraction has 12508 states and 19411 transitions. [2022-01-10 12:17:00,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 12508 states and 19411 transitions. [2022-01-10 12:17:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 12:17:00,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:17:00,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:17:00,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:17:00,271 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2022-01-10 12:17:00,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:17:00,271 INFO L85 PathProgramCache]: Analyzing trace with hash -272193038, now seen corresponding path program 1 times [2022-01-10 12:17:00,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:17:00,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888280104] [2022-01-10 12:17:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:17:00,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:17:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:17:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:17:00,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:17:00,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888280104] [2022-01-10 12:17:00,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888280104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:17:00,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:17:00,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:17:00,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346864464] [2022-01-10 12:17:00,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:17:00,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:17:00,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:17:00,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:17:00,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:17:00,366 INFO L87 Difference]: Start difference. First operand 12508 states and 19411 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:17:00,822 INFO L93 Difference]: Finished difference Result 23632 states and 36701 transitions. [2022-01-10 12:17:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:17:00,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-10 12:17:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:17:00,838 INFO L225 Difference]: With dead ends: 23632 [2022-01-10 12:17:00,838 INFO L226 Difference]: Without dead ends: 8158 [2022-01-10 12:17:00,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:17:00,859 INFO L933 BasicCegarLoop]: 13635 mSDtfsCounter, 6652 mSDsluCounter, 7993 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6652 SdHoareTripleChecker+Valid, 21628 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:17:00,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6652 Valid, 21628 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:17:00,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2022-01-10 12:17:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 8158. [2022-01-10 12:17:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 8094 states have (on average 1.6005683222139857) internal successors, (12955), 8157 states have internal predecessors, (12955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 12955 transitions. [2022-01-10 12:17:01,092 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 12955 transitions. Word has length 70 [2022-01-10 12:17:01,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:17:01,092 INFO L470 AbstractCegarLoop]: Abstraction has 8158 states and 12955 transitions. [2022-01-10 12:17:01,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 12955 transitions. [2022-01-10 12:17:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 12:17:01,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:17:01,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:17:01,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:17:01,097 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2022-01-10 12:17:01,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:17:01,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1331087807, now seen corresponding path program 1 times [2022-01-10 12:17:01,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:17:01,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964870113] [2022-01-10 12:17:01,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:17:01,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:17:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:17:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:17:01,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:17:01,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964870113] [2022-01-10 12:17:01,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964870113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:17:01,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:17:01,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:17:01,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363178769] [2022-01-10 12:17:01,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:17:01,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:17:01,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:17:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:17:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:17:01,180 INFO L87 Difference]: Start difference. First operand 8158 states and 12955 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:17:01,354 INFO L93 Difference]: Finished difference Result 15830 states and 25087 transitions. [2022-01-10 12:17:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:17:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-10 12:17:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:17:01,370 INFO L225 Difference]: With dead ends: 15830 [2022-01-10 12:17:01,370 INFO L226 Difference]: Without dead ends: 7715 [2022-01-10 12:17:01,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:17:01,383 INFO L933 BasicCegarLoop]: 8055 mSDtfsCounter, 3 mSDsluCounter, 24156 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32211 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:17:01,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 32211 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:17:01,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2022-01-10 12:17:01,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 7714. [2022-01-10 12:17:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7650 states have (on average 1.591764705882353) internal successors, (12177), 7713 states have internal predecessors, (12177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 12177 transitions. [2022-01-10 12:17:01,662 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 12177 transitions. Word has length 72 [2022-01-10 12:17:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:17:01,663 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 12177 transitions. [2022-01-10 12:17:01,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:17:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 12177 transitions. [2022-01-10 12:17:01,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 12:17:01,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:17:01,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:17:01,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:17:01,667 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2022-01-10 12:17:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:17:01,667 INFO L85 PathProgramCache]: Analyzing trace with hash 733933080, now seen corresponding path program 1 times [2022-01-10 12:17:01,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:17:01,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46274168] [2022-01-10 12:17:01,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:17:01,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:17:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:17:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:17:01,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:17:01,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46274168] [2022-01-10 12:17:01,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46274168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:17:01,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:17:01,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:17:01,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992536098] [2022-01-10 12:17:01,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:17:01,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:17:01,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:17:01,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:17:01,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:17:01,722 INFO L87 Difference]: Start difference. First operand 7714 states and 12177 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)