/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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:03:23,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:03:23,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:03:23,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:03:23,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:03:23,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:03:23,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:03:23,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:03:23,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:03:23,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:03:23,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:03:23,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:03:23,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:03:23,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:03:23,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:03:23,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:03:23,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:03:23,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:03:23,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:03:23,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:03:23,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:03:23,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:03:23,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:03:23,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:03:23,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:03:23,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:03:23,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:03:23,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:03:23,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:03:23,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:03:23,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:03:23,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:03:23,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:03:23,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:03:23,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:03:23,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:03:23,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:03:23,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:03:23,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:03:23,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:03:23,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:03:23,604 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 00:03:23,621 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:03:23,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:03:23,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:03:23,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:03:23,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:03:23,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:03:23,623 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:03:23,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:03:23,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:03:23,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:03:23,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:03:23,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:03:23,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:03:23,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:03:23,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:23,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:03:23,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:03:23,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:03:23,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:03:23,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:03:23,627 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:03:23,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:03:23,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:03:23,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:03:23,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:03:23,630 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:03:23,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:03:23,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:03:23,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:03:23,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:03:23,889 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:03:23,890 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:03:23,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2022-01-11 00:03:23,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de403fbf/c0c6a69045b94ff0a574740da4c24635/FLAG5c514851c [2022-01-11 00:03:24,484 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:03:24,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2022-01-11 00:03:24,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de403fbf/c0c6a69045b94ff0a574740da4c24635/FLAG5c514851c [2022-01-11 00:03:24,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de403fbf/c0c6a69045b94ff0a574740da4c24635 [2022-01-11 00:03:24,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:03:24,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:03:24,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:24,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:03:24,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:03:24,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:24" (1/1) ... [2022-01-11 00:03:24,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c69dea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:24, skipping insertion in model container [2022-01-11 00:03:24,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:24" (1/1) ... [2022-01-11 00:03:24,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:03:24,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:25,130 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_product50.cil.c[6254,6267] [2022-01-11 00:03:25,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:25,232 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 00:03:25,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:25,279 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_product50.cil.c[6254,6267] [2022-01-11 00:03:25,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:25,349 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:03:25,368 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_product50.cil.c[6254,6267] [2022-01-11 00:03:25,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:25,418 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:03:25,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25 WrapperNode [2022-01-11 00:03:25,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:25,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:25,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:03:25,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:03:25,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,469 INFO L137 Inliner]: procedures = 58, calls = 155, calls flagged for inlining = 52, calls inlined = 78, statements flattened = 602 [2022-01-11 00:03:25,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:25,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:03:25,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:03:25,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:03:25,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:03:25,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:03:25,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:03:25,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:03:25,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (1/1) ... [2022-01-11 00:03:25,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:25,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:03:25,573 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 00:03:25,600 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 00:03:25,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:03:25,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:03:25,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:03:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:03:25,690 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:03:25,691 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:03:26,116 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:03:26,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:03:26,124 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 00:03:26,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:26 BoogieIcfgContainer [2022-01-11 00:03:26,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:03:26,127 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:03:26,127 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:03:26,135 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:03:26,139 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:26" (1/1) ... [2022-01-11 00:03:26,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:26 BasicIcfg [2022-01-11 00:03:26,274 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:03:26,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:03:26,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:03:26,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:03:26,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:03:24" (1/4) ... [2022-01-11 00:03:26,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6907133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:26, skipping insertion in model container [2022-01-11 00:03:26,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:25" (2/4) ... [2022-01-11 00:03:26,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6907133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:26, skipping insertion in model container [2022-01-11 00:03:26,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:26" (3/4) ... [2022-01-11 00:03:26,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6907133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:26, skipping insertion in model container [2022-01-11 00:03:26,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:26" (4/4) ... [2022-01-11 00:03:26,285 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.cTransformedIcfg [2022-01-11 00:03:26,290 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:03:26,290 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 00:03:26,330 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:03:26,336 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 00:03:26,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 00:03:26,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 162 states have (on average 1.3950617283950617) internal successors, (226), 165 states have internal predecessors, (226), 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 00:03:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 00:03:26,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:26,357 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 00:03:26,358 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 00:03:26,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:26,362 INFO L85 PathProgramCache]: Analyzing trace with hash 634600168, now seen corresponding path program 1 times [2022-01-11 00:03:26,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968811979] [2022-01-11 00:03:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:26,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:26,616 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 00:03:26,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:26,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968811979] [2022-01-11 00:03:26,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968811979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:26,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:26,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:26,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864465341] [2022-01-11 00:03:26,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:26,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 00:03:26,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:26,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 00:03:26,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:03:26,664 INFO L87 Difference]: Start difference. First operand has 166 states, 162 states have (on average 1.3950617283950617) internal successors, (226), 165 states have internal predecessors, (226), 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 00:03:26,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:26,715 INFO L93 Difference]: Finished difference Result 322 states and 441 transitions. [2022-01-11 00:03:26,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 00:03:26,718 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 00:03:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:26,726 INFO L225 Difference]: With dead ends: 322 [2022-01-11 00:03:26,726 INFO L226 Difference]: Without dead ends: 156 [2022-01-11 00:03:26,730 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 00:03:26,733 INFO L933 BasicCegarLoop]: 216 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, 216 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 00:03:26,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:26,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-01-11 00:03:26,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-01-11 00:03:26,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 153 states have (on average 1.3594771241830066) internal successors, (208), 155 states have internal predecessors, (208), 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 00:03:26,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 208 transitions. [2022-01-11 00:03:26,774 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 208 transitions. Word has length 17 [2022-01-11 00:03:26,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:26,775 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 208 transitions. [2022-01-11 00:03:26,775 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 00:03:26,775 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 208 transitions. [2022-01-11 00:03:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 00:03:26,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:26,776 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 00:03:26,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:03:26,777 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 00:03:26,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:26,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1884977059, now seen corresponding path program 1 times [2022-01-11 00:03:26,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:26,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369310847] [2022-01-11 00:03:26,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:26,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:26,864 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 00:03:26,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:26,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369310847] [2022-01-11 00:03:26,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369310847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:26,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:26,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:26,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141901742] [2022-01-11 00:03:26,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:26,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:26,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:26,867 INFO L87 Difference]: Start difference. First operand 156 states and 208 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 00:03:26,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:26,925 INFO L93 Difference]: Finished difference Result 305 states and 409 transitions. [2022-01-11 00:03:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:26,931 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 00:03:26,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:26,933 INFO L225 Difference]: With dead ends: 305 [2022-01-11 00:03:26,933 INFO L226 Difference]: Without dead ends: 156 [2022-01-11 00:03:26,934 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 00:03:26,935 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 202 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 00:03:26,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 202 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:26,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-01-11 00:03:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-01-11 00:03:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 153 states have (on average 1.3398692810457515) internal successors, (205), 155 states have internal predecessors, (205), 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 00:03:26,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2022-01-11 00:03:26,979 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 18 [2022-01-11 00:03:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:26,980 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2022-01-11 00:03:26,980 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 00:03:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2022-01-11 00:03:26,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 00:03:26,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:26,981 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] [2022-01-11 00:03:26,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:03:26,982 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 00:03:26,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:26,982 INFO L85 PathProgramCache]: Analyzing trace with hash -161286528, now seen corresponding path program 1 times [2022-01-11 00:03:26,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:26,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898410267] [2022-01-11 00:03:26,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:26,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:27,080 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 00:03:27,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:27,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898410267] [2022-01-11 00:03:27,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898410267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:27,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:27,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:27,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482059177] [2022-01-11 00:03:27,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:27,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:27,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:27,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:27,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:27,083 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 00:03:27,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:27,202 INFO L93 Difference]: Finished difference Result 367 states and 481 transitions. [2022-01-11 00:03:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:27,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2022-01-11 00:03:27,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:27,206 INFO L225 Difference]: With dead ends: 367 [2022-01-11 00:03:27,207 INFO L226 Difference]: Without dead ends: 218 [2022-01-11 00:03:27,208 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 00:03:27,209 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 128 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:27,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 322 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:27,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-01-11 00:03:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 212. [2022-01-11 00:03:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 209 states have (on average 1.2966507177033493) internal successors, (271), 211 states have internal predecessors, (271), 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 00:03:27,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 271 transitions. [2022-01-11 00:03:27,244 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 271 transitions. Word has length 23 [2022-01-11 00:03:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:27,244 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-01-11 00:03:27,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 00:03:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 271 transitions. [2022-01-11 00:03:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-11 00:03:27,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:27,246 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] [2022-01-11 00:03:27,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:03:27,246 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 00:03:27,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:27,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1363612605, now seen corresponding path program 1 times [2022-01-11 00:03:27,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:27,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758080615] [2022-01-11 00:03:27,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:27,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:27,308 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 00:03:27,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:27,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758080615] [2022-01-11 00:03:27,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758080615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:27,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:27,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:27,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079529306] [2022-01-11 00:03:27,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:27,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:03:27,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:27,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:03:27,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:03:27,310 INFO L87 Difference]: Start difference. First operand 212 states and 271 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 00:03:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:27,455 INFO L93 Difference]: Finished difference Result 803 states and 1021 transitions. [2022-01-11 00:03:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:03:27,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2022-01-11 00:03:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:27,458 INFO L225 Difference]: With dead ends: 803 [2022-01-11 00:03:27,458 INFO L226 Difference]: Without dead ends: 598 [2022-01-11 00:03:27,462 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 00:03:27,472 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 391 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:27,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 751 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:27,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-01-11 00:03:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 224. [2022-01-11 00:03:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.2805429864253393) internal successors, (283), 223 states have internal predecessors, (283), 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 00:03:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 283 transitions. [2022-01-11 00:03:27,516 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 283 transitions. Word has length 29 [2022-01-11 00:03:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:27,517 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 283 transitions. [2022-01-11 00:03:27,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 00:03:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 283 transitions. [2022-01-11 00:03:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-11 00:03:27,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:27,519 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] [2022-01-11 00:03:27,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:03:27,519 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 00:03:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:27,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1657015612, now seen corresponding path program 1 times [2022-01-11 00:03:27,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:27,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501211556] [2022-01-11 00:03:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:27,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:27,675 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 00:03:27,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:27,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501211556] [2022-01-11 00:03:27,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501211556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:27,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:27,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:03:27,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635070975] [2022-01-11 00:03:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:27,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:27,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:27,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:27,678 INFO L87 Difference]: Start difference. First operand 224 states and 283 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 00:03:27,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:27,832 INFO L93 Difference]: Finished difference Result 592 states and 736 transitions. [2022-01-11 00:03:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:03:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 29 [2022-01-11 00:03:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:27,834 INFO L225 Difference]: With dead ends: 592 [2022-01-11 00:03:27,834 INFO L226 Difference]: Without dead ends: 375 [2022-01-11 00:03:27,835 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 00:03:27,839 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 354 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:27,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 897 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-01-11 00:03:27,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 242. [2022-01-11 00:03:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.2594142259414225) internal successors, (301), 241 states have internal predecessors, (301), 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 00:03:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 301 transitions. [2022-01-11 00:03:27,869 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 301 transitions. Word has length 29 [2022-01-11 00:03:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:27,874 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 301 transitions. [2022-01-11 00:03:27,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 00:03:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 301 transitions. [2022-01-11 00:03:27,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-11 00:03:27,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:27,879 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] [2022-01-11 00:03:27,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:03:27,879 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:27,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:27,880 INFO L85 PathProgramCache]: Analyzing trace with hash -346952356, now seen corresponding path program 1 times [2022-01-11 00:03:27,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:27,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019706458] [2022-01-11 00:03:27,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:27,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:27,991 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 00:03:27,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:27,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019706458] [2022-01-11 00:03:27,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019706458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:27,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:27,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:27,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738321681] [2022-01-11 00:03:27,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:27,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:27,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:27,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:27,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:27,994 INFO L87 Difference]: Start difference. First operand 242 states and 301 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 00:03:28,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:28,173 INFO L93 Difference]: Finished difference Result 1119 states and 1399 transitions. [2022-01-11 00:03:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 00:03:28,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2022-01-11 00:03:28,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:28,176 INFO L225 Difference]: With dead ends: 1119 [2022-01-11 00:03:28,176 INFO L226 Difference]: Without dead ends: 732 [2022-01-11 00:03:28,177 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 00:03:28,179 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 777 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:28,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 1024 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:28,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-01-11 00:03:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 331. [2022-01-11 00:03:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 328 states have (on average 1.2560975609756098) internal successors, (412), 330 states have internal predecessors, (412), 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 00:03:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 412 transitions. [2022-01-11 00:03:28,218 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 412 transitions. Word has length 29 [2022-01-11 00:03:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:28,218 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 412 transitions. [2022-01-11 00:03:28,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 00:03:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 412 transitions. [2022-01-11 00:03:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:03:28,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:28,223 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] [2022-01-11 00:03:28,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:03:28,223 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 00:03:28,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:28,223 INFO L85 PathProgramCache]: Analyzing trace with hash 103950475, now seen corresponding path program 1 times [2022-01-11 00:03:28,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:28,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682518110] [2022-01-11 00:03:28,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:28,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:28,293 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 00:03:28,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:28,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682518110] [2022-01-11 00:03:28,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682518110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:28,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:28,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:28,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870602359] [2022-01-11 00:03:28,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:28,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:03:28,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:28,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:03:28,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:03:28,296 INFO L87 Difference]: Start difference. First operand 331 states and 412 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 00:03:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:28,436 INFO L93 Difference]: Finished difference Result 758 states and 935 transitions. [2022-01-11 00:03:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 00:03:28,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2022-01-11 00:03:28,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:28,441 INFO L225 Difference]: With dead ends: 758 [2022-01-11 00:03:28,441 INFO L226 Difference]: Without dead ends: 434 [2022-01-11 00:03:28,442 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 00:03:28,443 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 330 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:28,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 457 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-01-11 00:03:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 331. [2022-01-11 00:03:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 328 states have (on average 1.2317073170731707) internal successors, (404), 330 states have internal predecessors, (404), 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 00:03:28,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 404 transitions. [2022-01-11 00:03:28,505 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 404 transitions. Word has length 38 [2022-01-11 00:03:28,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:28,505 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 404 transitions. [2022-01-11 00:03:28,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 00:03:28,506 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 404 transitions. [2022-01-11 00:03:28,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:03:28,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:28,506 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] [2022-01-11 00:03:28,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:03:28,506 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 00:03:28,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:28,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1814515436, now seen corresponding path program 1 times [2022-01-11 00:03:28,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:28,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293939961] [2022-01-11 00:03:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:28,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:28,602 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 00:03:28,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:28,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293939961] [2022-01-11 00:03:28,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293939961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:28,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:28,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:28,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731069573] [2022-01-11 00:03:28,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:28,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:28,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:28,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:28,605 INFO L87 Difference]: Start difference. First operand 331 states and 404 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 00:03:28,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:28,750 INFO L93 Difference]: Finished difference Result 772 states and 937 transitions. [2022-01-11 00:03:28,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:28,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2022-01-11 00:03:28,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:28,752 INFO L225 Difference]: With dead ends: 772 [2022-01-11 00:03:28,753 INFO L226 Difference]: Without dead ends: 448 [2022-01-11 00:03:28,753 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 00:03:28,754 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 77 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:28,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 364 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:28,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-01-11 00:03:28,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2022-01-11 00:03:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 439 states have (on average 1.2095671981776766) internal successors, (531), 441 states have internal predecessors, (531), 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 00:03:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 531 transitions. [2022-01-11 00:03:28,812 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 531 transitions. Word has length 38 [2022-01-11 00:03:28,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:28,812 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 531 transitions. [2022-01-11 00:03:28,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 00:03:28,813 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 531 transitions. [2022-01-11 00:03:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:03:28,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:28,813 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] [2022-01-11 00:03:28,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:03:28,814 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 00:03:28,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:28,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1403601334, now seen corresponding path program 1 times [2022-01-11 00:03:28,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:28,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708452276] [2022-01-11 00:03:28,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:28,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:28,863 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 00:03:28,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:28,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708452276] [2022-01-11 00:03:28,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708452276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:28,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:28,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:28,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452931994] [2022-01-11 00:03:28,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:28,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:28,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:28,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:28,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:28,865 INFO L87 Difference]: Start difference. First operand 442 states and 531 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 00:03:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:29,219 INFO L93 Difference]: Finished difference Result 1302 states and 1545 transitions. [2022-01-11 00:03:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:03:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2022-01-11 00:03:29,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:29,224 INFO L225 Difference]: With dead ends: 1302 [2022-01-11 00:03:29,224 INFO L226 Difference]: Without dead ends: 1173 [2022-01-11 00:03:29,225 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 00:03:29,227 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 673 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:29,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 1449 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:29,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-01-11 00:03:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 397. [2022-01-11 00:03:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 394 states have (on average 1.2106598984771573) internal successors, (477), 396 states have internal predecessors, (477), 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 00:03:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 477 transitions. [2022-01-11 00:03:29,282 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 477 transitions. Word has length 38 [2022-01-11 00:03:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:29,284 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 477 transitions. [2022-01-11 00:03:29,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 00:03:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 477 transitions. [2022-01-11 00:03:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 00:03:29,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:29,286 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 00:03:29,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:03:29,286 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:29,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:29,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2098512550, now seen corresponding path program 1 times [2022-01-11 00:03:29,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:29,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992961086] [2022-01-11 00:03:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:29,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:29,315 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 00:03:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:29,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 00:03:29,357 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 00:03:29,358 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 00:03:29,360 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 00:03:29,360 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 00:03:29,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 00:03:29,364 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:29,367 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 00:03:29,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:29 BasicIcfg [2022-01-11 00:03:29,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 00:03:29,433 INFO L158 Benchmark]: Toolchain (without parser) took 4615.81ms. Allocated memory was 178.3MB in the beginning and 249.6MB in the end (delta: 71.3MB). Free memory was 120.9MB in the beginning and 119.6MB in the end (delta: 1.3MB). Peak memory consumption was 74.2MB. Max. memory is 8.0GB. [2022-01-11 00:03:29,433 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory was 137.8MB in the beginning and 137.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:03:29,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.49ms. Allocated memory was 178.3MB in the beginning and 249.6MB in the end (delta: 71.3MB). Free memory was 120.6MB in the beginning and 206.3MB in the end (delta: -85.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-11 00:03:29,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.60ms. Allocated memory is still 249.6MB. Free memory was 206.3MB in the beginning and 202.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:29,434 INFO L158 Benchmark]: Boogie Preprocessor took 37.72ms. Allocated memory is still 249.6MB. Free memory was 202.7MB in the beginning and 200.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:29,434 INFO L158 Benchmark]: RCFGBuilder took 617.74ms. Allocated memory is still 249.6MB. Free memory was 200.1MB in the beginning and 177.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:29,434 INFO L158 Benchmark]: IcfgTransformer took 147.24ms. Allocated memory is still 249.6MB. Free memory was 177.0MB in the beginning and 167.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-11 00:03:29,435 INFO L158 Benchmark]: TraceAbstraction took 3156.76ms. Allocated memory is still 249.6MB. Free memory was 167.0MB in the beginning and 119.6MB in the end (delta: 47.5MB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:29,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory was 137.8MB in the beginning and 137.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 599.49ms. Allocated memory was 178.3MB in the beginning and 249.6MB in the end (delta: 71.3MB). Free memory was 120.6MB in the beginning and 206.3MB in the end (delta: -85.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.60ms. Allocated memory is still 249.6MB. Free memory was 206.3MB in the beginning and 202.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.72ms. Allocated memory is still 249.6MB. Free memory was 202.7MB in the beginning and 200.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 617.74ms. Allocated memory is still 249.6MB. Free memory was 200.1MB in the beginning and 177.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * IcfgTransformer took 147.24ms. Allocated memory is still 249.6MB. Free memory was 177.0MB in the beginning and 167.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3156.76ms. Allocated memory is still 249.6MB. Free memory was 167.0MB in the beginning and 119.6MB in the end (delta: 47.5MB). Peak memory consumption was 49.1MB. 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: 398]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L405] int pumpRunning = 0; [L406] int systemActive = 1; [L779] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] int retValue_acc ; [L269] int tmp ; [L273] FCALL select_helpers() [L274] FCALL select_features() [L275] CALL, EXPR valid_product() [L317] int retValue_acc ; [L320] retValue_acc = 1 [L321] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L275] RET, EXPR valid_product() [L275] tmp = valid_product() [L277] COND TRUE \read(tmp) [L279] FCALL setup() [L280] CALL runTest() [L259] CALL test() [L328] int splverifierCounter ; [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L332] int tmp___2 ; [L335] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L337] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L339] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L345] tmp = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp) [L349] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L349] RET waterRise() [L355] tmp___0 = __VERIFIER_nondet_int() [L357] COND TRUE \read(tmp___0) [L359] CALL changeMethaneLevel() [L116] COND FALSE !(\read(methaneLevelCritical)) [L119] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L359] RET changeMethaneLevel() [L365] tmp___2 = __VERIFIER_nondet_int() [L367] COND TRUE \read(tmp___2) [L369] CALL startSystem() [L605] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L369] RET startSystem() [L382] CALL timeShift() [L412] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L419] COND TRUE \read(systemActive) [L421] CALL processEnvironment() [L467] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L470] COND FALSE !(\read(pumpRunning)) [L485] CALL processEnvironment__wrappee__highWaterSensor() [L441] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L444] COND TRUE ! pumpRunning [L446] CALL, EXPR isHighWaterLevel() [L564] int retValue_acc ; [L565] int tmp ; [L566] int tmp___0 ; [L570] CALL, EXPR isHighWaterSensorDry() [L166] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L169] COND FALSE !(waterLevel < 2) [L173] retValue_acc = 0 [L174] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L570] RET, EXPR isHighWaterSensorDry() [L570] tmp = isHighWaterSensorDry() [L572] COND FALSE !(\read(tmp)) [L575] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L577] retValue_acc = tmp___0 [L578] 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] [L446] RET, EXPR isHighWaterLevel() [L446] tmp = isHighWaterLevel() [L448] COND TRUE \read(tmp) [L450] CALL activatePump() [L495] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L450] RET activatePump() [L485] RET processEnvironment__wrappee__highWaterSensor() [L421] RET processEnvironment() [L427] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) [L63] CALL, EXPR isPumpRunning() [L519] int retValue_acc ; [L522] retValue_acc = pumpRunning [L523] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) [L67] CALL __automaton_fail() [L398] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 398]: 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: 398]: 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, 166 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2923 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2923 mSDsluCounter, 5682 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3360 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 2322 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=8, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1799 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 711 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 00:03:29,452 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...