/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:03:28,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:03:28,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:03:28,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:03:28,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:03:28,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:03:28,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:03:28,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:03:28,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:03:28,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:03:28,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:03:28,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:03:28,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:03:28,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:03:28,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:03:28,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:03:28,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:03:28,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:03:28,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:03:28,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:03:28,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:03:28,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:03:28,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:03:28,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:03:28,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:03:28,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:03:28,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:03:28,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:03:28,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:03:28,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:03:28,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:03:28,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:03:28,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:03:28,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:03:28,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:03:28,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:03:28,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:03:28,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:03:28,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:03:28,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:03:28,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:03:28,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:03:28,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:03:28,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:03:28,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:03:28,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:03:28,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:03:28,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:03:28,307 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:03:28,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:03:28,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:03:28,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:03:28,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:03:28,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:03:28,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:03:28,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:03:28,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:28,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:03:28,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:03:28,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:03:28,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:03:28,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:03:28,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:03:28,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:03:28,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:03:28,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:03:28,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:03:28,311 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:03:28,311 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:03:28,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:03:28,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:03:28,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:03:28,526 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:03:28,527 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:03:28,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2022-01-11 00:03:28,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5b85cc9/da579d6205e74d899847886f7f97194e/FLAG3ec938b7b [2022-01-11 00:03:28,940 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:03:28,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2022-01-11 00:03:28,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5b85cc9/da579d6205e74d899847886f7f97194e/FLAG3ec938b7b [2022-01-11 00:03:28,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5b85cc9/da579d6205e74d899847886f7f97194e [2022-01-11 00:03:28,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:03:28,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:03:28,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:28,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:03:28,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:03:28,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:28" (1/1) ... [2022-01-11 00:03:28,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6c5e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:28, skipping insertion in model container [2022-01-11 00:03:28,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:28" (1/1) ... [2022-01-11 00:03:28,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:03:29,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:29,238 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/minepump_spec1_product54.cil.c[3816,3829] [2022-01-11 00:03:29,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:29,440 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 00:03:29,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:29,482 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/minepump_spec1_product54.cil.c[3816,3829] [2022-01-11 00:03:29,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:29,570 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:03:29,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c[3816,3829] [2022-01-11 00:03:29,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:29,703 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:03:29,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29 WrapperNode [2022-01-11 00:03:29,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:29,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:29,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:03:29,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:03:29,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,798 INFO L137 Inliner]: procedures = 59, calls = 159, calls flagged for inlining = 56, calls inlined = 138, statements flattened = 1004 [2022-01-11 00:03:29,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:29,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:03:29,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:03:29,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:03:29,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:03:29,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:03:29,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:03:29,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:03:29,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:29,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:03:29,909 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 00:03:29,915 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 00:03:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:03:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:03:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:03:29,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:03:29,996 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:03:29,997 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:03:30,450 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:03:30,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:03:30,458 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 00:03:30,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:30 BoogieIcfgContainer [2022-01-11 00:03:30,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:03:30,461 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:03:30,461 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:03:30,462 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:03:30,464 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:30" (1/1) ... [2022-01-11 00:03:30,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:30 BasicIcfg [2022-01-11 00:03:30,590 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:03:30,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:03:30,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:03:30,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:03:30,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:03:28" (1/4) ... [2022-01-11 00:03:30,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8af50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:30, skipping insertion in model container [2022-01-11 00:03:30,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (2/4) ... [2022-01-11 00:03:30,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8af50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:30, skipping insertion in model container [2022-01-11 00:03:30,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:30" (3/4) ... [2022-01-11 00:03:30,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8af50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:30, skipping insertion in model container [2022-01-11 00:03:30,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:30" (4/4) ... [2022-01-11 00:03:30,595 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.cTransformedIcfg [2022-01-11 00:03:30,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:03:30,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 00:03:30,631 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:03:30,638 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 00:03:30,638 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 00:03:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 270 states have (on average 1.3814814814814815) internal successors, (373), 273 states have internal predecessors, (373), 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 00:03:30,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 00:03:30,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:30,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:30,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash -63672618, now seen corresponding path program 1 times [2022-01-11 00:03:30,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:30,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050196646] [2022-01-11 00:03:30,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:30,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:30,865 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 00:03:30,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:30,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050196646] [2022-01-11 00:03:30,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050196646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:30,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:30,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:30,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993031854] [2022-01-11 00:03:30,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:30,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 00:03:30,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:30,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 00:03:30,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:03:30,898 INFO L87 Difference]: Start difference. First operand has 274 states, 270 states have (on average 1.3814814814814815) internal successors, (373), 273 states have internal predecessors, (373), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 00:03:30,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:30,949 INFO L93 Difference]: Finished difference Result 538 states and 735 transitions. [2022-01-11 00:03:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 00:03:30,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-01-11 00:03:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:30,967 INFO L225 Difference]: With dead ends: 538 [2022-01-11 00:03:30,967 INFO L226 Difference]: Without dead ends: 264 [2022-01-11 00:03:30,973 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 00:03:30,976 INFO L933 BasicCegarLoop]: 363 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, 363 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 00:03:30,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:30,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-01-11 00:03:31,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-01-11 00:03:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 261 states have (on average 1.3601532567049808) internal successors, (355), 263 states have internal predecessors, (355), 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 00:03:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 355 transitions. [2022-01-11 00:03:31,036 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 355 transitions. Word has length 17 [2022-01-11 00:03:31,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,036 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 355 transitions. [2022-01-11 00:03:31,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 00:03:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 355 transitions. [2022-01-11 00:03:31,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 00:03:31,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:31,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:03:31,039 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1714159820, now seen corresponding path program 1 times [2022-01-11 00:03:31,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071524445] [2022-01-11 00:03:31,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,149 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 00:03:31,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071524445] [2022-01-11 00:03:31,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071524445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:31,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671380592] [2022-01-11 00:03:31,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:31,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:31,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,151 INFO L87 Difference]: Start difference. First operand 264 states and 355 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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 00:03:31,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:31,185 INFO L93 Difference]: Finished difference Result 521 states and 703 transitions. [2022-01-11 00:03:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:31,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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 00:03:31,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:31,187 INFO L225 Difference]: With dead ends: 521 [2022-01-11 00:03:31,187 INFO L226 Difference]: Without dead ends: 264 [2022-01-11 00:03:31,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,191 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 340 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:31,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 349 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:31,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-01-11 00:03:31,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-01-11 00:03:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 261 states have (on average 1.3486590038314177) internal successors, (352), 263 states have internal predecessors, (352), 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 00:03:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 352 transitions. [2022-01-11 00:03:31,203 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 352 transitions. Word has length 18 [2022-01-11 00:03:31,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,203 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 352 transitions. [2022-01-11 00:03:31,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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 00:03:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 352 transitions. [2022-01-11 00:03:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-11 00:03:31,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,205 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] [2022-01-11 00:03:31,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:03:31,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash -102119418, now seen corresponding path program 1 times [2022-01-11 00:03:31,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903977109] [2022-01-11 00:03:31,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,269 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 00:03:31,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903977109] [2022-01-11 00:03:31,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903977109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:31,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360382422] [2022-01-11 00:03:31,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:31,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:31,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,272 INFO L87 Difference]: Start difference. First operand 264 states and 352 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 00:03:31,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:31,356 INFO L93 Difference]: Finished difference Result 538 states and 712 transitions. [2022-01-11 00:03:31,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:31,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2022-01-11 00:03:31,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:31,357 INFO L225 Difference]: With dead ends: 538 [2022-01-11 00:03:31,357 INFO L226 Difference]: Without dead ends: 281 [2022-01-11 00:03:31,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,363 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 174 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:31,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 412 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:31,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-01-11 00:03:31,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 275. [2022-01-11 00:03:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 272 states have (on average 1.2830882352941178) internal successors, (349), 274 states have internal predecessors, (349), 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 00:03:31,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 349 transitions. [2022-01-11 00:03:31,386 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 349 transitions. Word has length 24 [2022-01-11 00:03:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,386 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 349 transitions. [2022-01-11 00:03:31,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 00:03:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 349 transitions. [2022-01-11 00:03:31,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 00:03:31,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,390 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] [2022-01-11 00:03:31,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:03:31,390 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,391 INFO L85 PathProgramCache]: Analyzing trace with hash -751058173, now seen corresponding path program 1 times [2022-01-11 00:03:31,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864415852] [2022-01-11 00:03:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,474 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 00:03:31,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864415852] [2022-01-11 00:03:31,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864415852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:03:31,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723973904] [2022-01-11 00:03:31,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:31,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:31,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:31,478 INFO L87 Difference]: Start difference. First operand 275 states and 349 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 00:03:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:31,662 INFO L93 Difference]: Finished difference Result 724 states and 901 transitions. [2022-01-11 00:03:31,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:03:31,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2022-01-11 00:03:31,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:31,664 INFO L225 Difference]: With dead ends: 724 [2022-01-11 00:03:31,664 INFO L226 Difference]: Without dead ends: 456 [2022-01-11 00:03:31,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:03:31,671 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 432 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:31,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1154 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:31,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-01-11 00:03:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 302. [2022-01-11 00:03:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 299 states have (on average 1.2575250836120402) internal successors, (376), 301 states have internal predecessors, (376), 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 00:03:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 376 transitions. [2022-01-11 00:03:31,683 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 376 transitions. Word has length 31 [2022-01-11 00:03:31,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,684 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 376 transitions. [2022-01-11 00:03:31,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 00:03:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 376 transitions. [2022-01-11 00:03:31,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 00:03:31,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,686 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] [2022-01-11 00:03:31,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:03:31,686 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1550444259, now seen corresponding path program 1 times [2022-01-11 00:03:31,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755937235] [2022-01-11 00:03:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:03:31,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755937235] [2022-01-11 00:03:31,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755937235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:31,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442854693] [2022-01-11 00:03:31,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:31,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:31,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:31,761 INFO L87 Difference]: Start difference. First operand 302 states and 376 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 00:03:31,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:31,907 INFO L93 Difference]: Finished difference Result 1340 states and 1673 transitions. [2022-01-11 00:03:31,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 00:03:31,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-01-11 00:03:31,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:31,913 INFO L225 Difference]: With dead ends: 1340 [2022-01-11 00:03:31,914 INFO L226 Difference]: Without dead ends: 852 [2022-01-11 00:03:31,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:03:31,915 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 1093 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:31,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 1242 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-01-11 00:03:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 411. [2022-01-11 00:03:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 408 states have (on average 1.2549019607843137) internal successors, (512), 410 states have internal predecessors, (512), 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 00:03:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 512 transitions. [2022-01-11 00:03:31,947 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 512 transitions. Word has length 31 [2022-01-11 00:03:31,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,951 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 512 transitions. [2022-01-11 00:03:31,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 00:03:31,951 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 512 transitions. [2022-01-11 00:03:31,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 00:03:31,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,952 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] [2022-01-11 00:03:31,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:03:31,952 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,953 INFO L85 PathProgramCache]: Analyzing trace with hash 563078993, now seen corresponding path program 1 times [2022-01-11 00:03:31,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337655133] [2022-01-11 00:03:31,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,993 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 00:03:31,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337655133] [2022-01-11 00:03:31,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337655133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:31,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219816170] [2022-01-11 00:03:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:31,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:31,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:31,995 INFO L87 Difference]: Start difference. First operand 411 states and 512 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 00:03:32,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:32,256 INFO L93 Difference]: Finished difference Result 1243 states and 1537 transitions. [2022-01-11 00:03:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:03:32,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2022-01-11 00:03:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:32,259 INFO L225 Difference]: With dead ends: 1243 [2022-01-11 00:03:32,260 INFO L226 Difference]: Without dead ends: 1237 [2022-01-11 00:03:32,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:03:32,260 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 921 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:32,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 1915 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:32,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-01-11 00:03:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 411. [2022-01-11 00:03:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 408 states have (on average 1.2475490196078431) internal successors, (509), 410 states have internal predecessors, (509), 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 00:03:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 509 transitions. [2022-01-11 00:03:32,296 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 509 transitions. Word has length 40 [2022-01-11 00:03:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:32,296 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 509 transitions. [2022-01-11 00:03:32,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 00:03:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 509 transitions. [2022-01-11 00:03:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 00:03:32,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:32,297 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] [2022-01-11 00:03:32,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:03:32,297 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:32,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:32,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2050985232, now seen corresponding path program 1 times [2022-01-11 00:03:32,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:32,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408405222] [2022-01-11 00:03:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:32,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:32,326 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 00:03:32,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:32,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408405222] [2022-01-11 00:03:32,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408405222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:32,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:32,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:32,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287919366] [2022-01-11 00:03:32,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:32,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:03:32,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:32,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:03:32,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:03:32,327 INFO L87 Difference]: Start difference. First operand 411 states and 509 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 00:03:32,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:32,493 INFO L93 Difference]: Finished difference Result 1109 states and 1347 transitions. [2022-01-11 00:03:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:03:32,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2022-01-11 00:03:32,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:32,496 INFO L225 Difference]: With dead ends: 1109 [2022-01-11 00:03:32,496 INFO L226 Difference]: Without dead ends: 705 [2022-01-11 00:03:32,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:32,497 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 365 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:32,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 843 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:32,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-01-11 00:03:32,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 435. [2022-01-11 00:03:32,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 432 states have (on average 1.2337962962962963) internal successors, (533), 434 states have internal predecessors, (533), 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 00:03:32,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 533 transitions. [2022-01-11 00:03:32,541 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 533 transitions. Word has length 40 [2022-01-11 00:03:32,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:32,541 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 533 transitions. [2022-01-11 00:03:32,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 00:03:32,541 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 533 transitions. [2022-01-11 00:03:32,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 00:03:32,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:32,542 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] [2022-01-11 00:03:32,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:03:32,542 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:32,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:32,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1540451055, now seen corresponding path program 1 times [2022-01-11 00:03:32,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:32,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328815725] [2022-01-11 00:03:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:32,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:32,588 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 00:03:32,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:32,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328815725] [2022-01-11 00:03:32,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328815725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:32,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:32,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:32,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680455212] [2022-01-11 00:03:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:32,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:32,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:32,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:32,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:32,589 INFO L87 Difference]: Start difference. First operand 435 states and 533 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 00:03:32,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:32,680 INFO L93 Difference]: Finished difference Result 982 states and 1197 transitions. [2022-01-11 00:03:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:32,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2022-01-11 00:03:32,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:32,682 INFO L225 Difference]: With dead ends: 982 [2022-01-11 00:03:32,682 INFO L226 Difference]: Without dead ends: 505 [2022-01-11 00:03:32,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:32,684 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 76 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:32,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 532 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-01-11 00:03:32,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2022-01-11 00:03:32,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 502 states have (on average 1.2211155378486056) internal successors, (613), 504 states have internal predecessors, (613), 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 00:03:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 613 transitions. [2022-01-11 00:03:32,720 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 613 transitions. Word has length 40 [2022-01-11 00:03:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:32,720 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 613 transitions. [2022-01-11 00:03:32,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 00:03:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 613 transitions. [2022-01-11 00:03:32,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 00:03:32,721 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:32,721 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] [2022-01-11 00:03:32,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:03:32,721 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:32,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:32,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1387259081, now seen corresponding path program 1 times [2022-01-11 00:03:32,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:32,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339242088] [2022-01-11 00:03:32,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:32,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:32,737 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 00:03:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:32,767 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 00:03:32,767 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 00:03:32,768 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 00:03:32,770 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 00:03:32,771 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 00:03:32,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:03:32,773 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:32,776 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 00:03:32,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:32 BasicIcfg [2022-01-11 00:03:32,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 00:03:32,823 INFO L158 Benchmark]: Toolchain (without parser) took 3861.42ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 125.3MB in the beginning and 98.3MB in the end (delta: 27.0MB). Peak memory consumption was 119.7MB. Max. memory is 8.0GB. [2022-01-11 00:03:32,823 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 142.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:03:32,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.20ms. Allocated memory was 180.4MB in the beginning and 226.5MB in the end (delta: 46.1MB). Free memory was 125.1MB in the beginning and 182.0MB in the end (delta: -56.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-11 00:03:32,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.38ms. Allocated memory is still 226.5MB. Free memory was 182.0MB in the beginning and 177.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-11 00:03:32,824 INFO L158 Benchmark]: Boogie Preprocessor took 44.59ms. Allocated memory is still 226.5MB. Free memory was 177.4MB in the beginning and 174.2MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:32,824 INFO L158 Benchmark]: RCFGBuilder took 604.90ms. Allocated memory is still 226.5MB. Free memory was 174.2MB in the beginning and 142.8MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-01-11 00:03:32,824 INFO L158 Benchmark]: IcfgTransformer took 129.47ms. Allocated memory is still 226.5MB. Free memory was 142.8MB in the beginning and 188.9MB in the end (delta: -46.1MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2022-01-11 00:03:32,825 INFO L158 Benchmark]: TraceAbstraction took 2231.65ms. Allocated memory was 226.5MB in the beginning and 272.6MB in the end (delta: 46.1MB). Free memory was 188.4MB in the beginning and 98.3MB in the end (delta: 90.1MB). Peak memory consumption was 136.2MB. Max. memory is 8.0GB. [2022-01-11 00:03:32,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 142.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 734.20ms. Allocated memory was 180.4MB in the beginning and 226.5MB in the end (delta: 46.1MB). Free memory was 125.1MB in the beginning and 182.0MB in the end (delta: -56.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 94.38ms. Allocated memory is still 226.5MB. Free memory was 182.0MB in the beginning and 177.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.59ms. Allocated memory is still 226.5MB. Free memory was 177.4MB in the beginning and 174.2MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 604.90ms. Allocated memory is still 226.5MB. Free memory was 174.2MB in the beginning and 142.8MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * IcfgTransformer took 129.47ms. Allocated memory is still 226.5MB. Free memory was 142.8MB in the beginning and 188.9MB in the end (delta: -46.1MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2231.65ms. Allocated memory was 226.5MB in the beginning and 272.6MB in the end (delta: 46.1MB). Free memory was 188.4MB in the beginning and 98.3MB in the end (delta: 90.1MB). Peak memory consumption was 136.2MB. 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 - CounterExampleResult [Line: 226]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L899] int waterLevel = 1; [L900] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L497] int retValue_acc ; [L500] retValue_acc = 1 [L501] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L165] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L167] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L173] tmp = __VERIFIER_nondet_int() [L175] COND TRUE \read(tmp) [L177] CALL waterRise() [L917] COND TRUE waterLevel < 2 [L918] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L177] RET waterRise() [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___0) [L187] CALL changeMethaneLevel() [L929] COND FALSE !(\read(methaneLevelCritical)) [L932] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L187] RET changeMethaneLevel() [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L197] CALL startSystem() [L466] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L197] RET startSystem() [L210] CALL timeShift() [L247] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L328] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L331] COND FALSE !(\read(pumpRunning)) [L346] CALL processEnvironment__wrappee__lowWaterSensor() [L302] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L305] COND FALSE !(\read(pumpRunning)) [L320] CALL processEnvironment__wrappee__highWaterSensor() [L276] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L425] int retValue_acc ; [L426] int tmp ; [L427] int tmp___0 ; [L431] CALL, EXPR isHighWaterSensorDry() [L979] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L982] COND FALSE !(waterLevel < 2) [L986] retValue_acc = 0 [L987] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L431] RET, EXPR isHighWaterSensorDry() [L431] tmp = isHighWaterSensorDry() [L433] COND FALSE !(\read(tmp)) [L436] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L438] retValue_acc = tmp___0 [L439] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND TRUE \read(tmp) [L285] CALL activatePump() [L356] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L285] RET activatePump() [L320] RET processEnvironment__wrappee__highWaterSensor() [L346] RET processEnvironment__wrappee__lowWaterSensor() [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification1_spec__1() [L507] int tmp ; [L508] int tmp___0 ; [L512] CALL, EXPR isMethaneLevelCritical() [L938] int retValue_acc ; [L941] retValue_acc = methaneLevelCritical [L942] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L512] RET, EXPR isMethaneLevelCritical() [L512] tmp = isMethaneLevelCritical() [L514] COND TRUE \read(tmp) [L516] CALL, EXPR isPumpRunning() [L380] int retValue_acc ; [L383] retValue_acc = pumpRunning [L384] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L516] RET, EXPR isPumpRunning() [L516] tmp___0 = isPumpRunning() [L518] COND TRUE \read(tmp___0) [L520] CALL __automaton_fail() [L226] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 226]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 226]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 274 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3401 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3401 mSDsluCounter, 6810 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3945 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 534 IncrementalHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 2865 mSDtfsCounter, 534 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=505occurred in iteration=8, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1697 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 701 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2022-01-11 00:03:32,852 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...