/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:23:28,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:23:28,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:23:28,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:23:28,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:23:28,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:23:28,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:23:28,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:23:28,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:23:28,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:23:28,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:23:28,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:23:28,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:23:28,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:23:28,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:23:28,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:23:28,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:23:28,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:23:28,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:23:28,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:23:28,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:23:28,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:23:28,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:23:28,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:23:28,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:23:28,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:23:28,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:23:28,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:23:28,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:23:28,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:23:28,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:23:28,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:23:28,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:23:28,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:23:28,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:23:28,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:23:28,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:23:28,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:23:28,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:23:28,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:23:28,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:23:28,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:23:28,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:23:28,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:23:28,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:23:28,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:23:28,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:23:28,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:23:28,451 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:23:28,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:23:28,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:23:28,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:23:28,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:23:28,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:23:28,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:23:28,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:23:28,453 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:23:28,453 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:23:28,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:23:28,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:23:28,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:23:28,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:23:28,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:23:28,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:23:28,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:23:28,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:23:28,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:23:28,457 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:23:28,457 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:23:28,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:23:28,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:23:28,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:23:28,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:23:28,684 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:23:28,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2022-01-10 12:23:28,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ade08238/ee01b0df70744ac69b17eab5dccd985b/FLAGe13b8e64b [2022-01-10 12:23:29,084 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:23:29,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2022-01-10 12:23:29,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ade08238/ee01b0df70744ac69b17eab5dccd985b/FLAGe13b8e64b [2022-01-10 12:23:29,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ade08238/ee01b0df70744ac69b17eab5dccd985b [2022-01-10 12:23:29,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:23:29,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:23:29,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:23:29,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:23:29,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:23:29,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:29,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27cbe824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29, skipping insertion in model container [2022-01-10 12:23:29,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:29,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:23:29,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:23:29,772 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_product34.cil.c[12584,12597] [2022-01-10 12:23:29,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:23:29,817 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:23:29,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:23:29,869 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_product34.cil.c[12584,12597] [2022-01-10 12:23:29,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:23:29,887 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:23:29,931 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_product34.cil.c[12584,12597] [2022-01-10 12:23:29,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:23:29,957 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:23:29,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29 WrapperNode [2022-01-10 12:23:29,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:23:29,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:23:29,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:23:29,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:23:29,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:29,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,020 INFO L137 Inliner]: procedures = 55, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 392 [2022-01-10 12:23:30,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:23:30,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:23:30,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:23:30,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:23:30,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:23:30,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:23:30,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:23:30,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:23:30,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (1/1) ... [2022-01-10 12:23:30,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:23:30,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:23:30,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:23:30,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:23:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:23:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:23:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:23:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:23:30,208 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:23:30,209 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:23:30,489 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:23:30,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:23:30,495 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 12:23:30,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:23:30 BoogieIcfgContainer [2022-01-10 12:23:30,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:23:30,497 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:23:30,497 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:23:30,498 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:23:30,500 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:23:30" (1/1) ... [2022-01-10 12:23:30,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:23:30 BasicIcfg [2022-01-10 12:23:30,607 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:23:30,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:23:30,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:23:30,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:23:30,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:23:29" (1/4) ... [2022-01-10 12:23:30,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6085b8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:23:30, skipping insertion in model container [2022-01-10 12:23:30,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:23:29" (2/4) ... [2022-01-10 12:23:30,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6085b8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:23:30, skipping insertion in model container [2022-01-10 12:23:30,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:23:30" (3/4) ... [2022-01-10 12:23:30,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6085b8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:23:30, skipping insertion in model container [2022-01-10 12:23:30,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:23:30" (4/4) ... [2022-01-10 12:23:30,614 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.cTransformedIcfg [2022-01-10 12:23:30,618 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:23:30,618 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 12:23:30,661 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:23:30,665 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:23:30,666 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 12:23:30,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 108 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:30,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 12:23:30,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:30,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:30,687 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:30,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:30,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1762101800, now seen corresponding path program 1 times [2022-01-10 12:23:30,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:30,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12056834] [2022-01-10 12:23:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:30,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:30,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:30,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12056834] [2022-01-10 12:23:30,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12056834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:30,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:30,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:30,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931361541] [2022-01-10 12:23:30,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:30,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:23:30,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:30,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:23:30,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:23:30,942 INFO L87 Difference]: Start difference. First operand has 109 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 108 states have internal predecessors, (148), 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) [2022-01-10 12:23:30,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:30,975 INFO L93 Difference]: Finished difference Result 208 states and 285 transitions. [2022-01-10 12:23:30,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:23:30,977 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 [2022-01-10 12:23:30,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:30,983 INFO L225 Difference]: With dead ends: 208 [2022-01-10 12:23:30,983 INFO L226 Difference]: Without dead ends: 99 [2022-01-10 12:23:30,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:23:30,989 INFO L933 BasicCegarLoop]: 138 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, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:30,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-01-10 12:23:31,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-01-10 12:23:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 98 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 130 transitions. [2022-01-10 12:23:31,020 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 130 transitions. Word has length 17 [2022-01-10 12:23:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,020 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 130 transitions. [2022-01-10 12:23:31,020 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) [2022-01-10 12:23:31,021 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 130 transitions. [2022-01-10 12:23:31,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 12:23:31,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:31,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:23:31,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:31,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1814374912, now seen corresponding path program 1 times [2022-01-10 12:23:31,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122855302] [2022-01-10 12:23:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122855302] [2022-01-10 12:23:31,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122855302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:31,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839545602] [2022-01-10 12:23:31,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:23:31,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:23:31,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:31,114 INFO L87 Difference]: Start difference. First operand 99 states and 130 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) [2022-01-10 12:23:31,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:31,153 INFO L93 Difference]: Finished difference Result 191 states and 253 transitions. [2022-01-10 12:23:31,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:23:31,155 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 [2022-01-10 12:23:31,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:31,156 INFO L225 Difference]: With dead ends: 191 [2022-01-10 12:23:31,156 INFO L226 Difference]: Without dead ends: 99 [2022-01-10 12:23:31,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:31,157 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 124 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 [2022-01-10 12:23:31,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 124 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-01-10 12:23:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-01-10 12:23:31,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 96 states have (on average 1.3229166666666667) internal successors, (127), 98 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 127 transitions. [2022-01-10 12:23:31,163 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 127 transitions. Word has length 18 [2022-01-10 12:23:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,163 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 127 transitions. [2022-01-10 12:23:31,163 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) [2022-01-10 12:23:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 127 transitions. [2022-01-10 12:23:31,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 12:23:31,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,164 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] [2022-01-10 12:23:31,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:23:31,164 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:31,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1096249676, now seen corresponding path program 1 times [2022-01-10 12:23:31,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060496065] [2022-01-10 12:23:31,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060496065] [2022-01-10 12:23:31,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060496065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:31,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687871545] [2022-01-10 12:23:31,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:23:31,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:23:31,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:31,229 INFO L87 Difference]: Start difference. First operand 99 states and 127 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:31,291 INFO L93 Difference]: Finished difference Result 250 states and 322 transitions. [2022-01-10 12:23:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:23:31,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 12:23:31,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:31,294 INFO L225 Difference]: With dead ends: 250 [2022-01-10 12:23:31,294 INFO L226 Difference]: Without dead ends: 158 [2022-01-10 12:23:31,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:31,295 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 90 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:31,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 231 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-01-10 12:23:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2022-01-10 12:23:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 149 states have (on average 1.2953020134228188) internal successors, (193), 151 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 193 transitions. [2022-01-10 12:23:31,312 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 193 transitions. Word has length 21 [2022-01-10 12:23:31,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,312 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 193 transitions. [2022-01-10 12:23:31,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,313 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 193 transitions. [2022-01-10 12:23:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 12:23:31,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,314 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] [2022-01-10 12:23:31,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:23:31,314 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:31,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1817232736, now seen corresponding path program 1 times [2022-01-10 12:23:31,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760166247] [2022-01-10 12:23:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760166247] [2022-01-10 12:23:31,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760166247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:23:31,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953248557] [2022-01-10 12:23:31,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:23:31,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:23:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:23:31,414 INFO L87 Difference]: Start difference. First operand 152 states and 193 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:31,502 INFO L93 Difference]: Finished difference Result 395 states and 494 transitions. [2022-01-10 12:23:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:23:31,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-10 12:23:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:31,504 INFO L225 Difference]: With dead ends: 395 [2022-01-10 12:23:31,504 INFO L226 Difference]: Without dead ends: 250 [2022-01-10 12:23:31,506 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 [2022-01-10 12:23:31,514 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 288 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:31,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 634 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-01-10 12:23:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 161. [2022-01-10 12:23:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.2784810126582278) internal successors, (202), 160 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 202 transitions. [2022-01-10 12:23:31,559 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 202 transitions. Word has length 27 [2022-01-10 12:23:31,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,560 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 202 transitions. [2022-01-10 12:23:31,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 202 transitions. [2022-01-10 12:23:31,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 12:23:31,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,563 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] [2022-01-10 12:23:31,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:23:31,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:31,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1881876864, now seen corresponding path program 1 times [2022-01-10 12:23:31,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768103000] [2022-01-10 12:23:31,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768103000] [2022-01-10 12:23:31,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768103000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:23:31,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449946172] [2022-01-10 12:23:31,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:23:31,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:23:31,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:23:31,641 INFO L87 Difference]: Start difference. First operand 161 states and 202 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:31,743 INFO L93 Difference]: Finished difference Result 709 states and 899 transitions. [2022-01-10 12:23:31,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:23:31,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-10 12:23:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:31,746 INFO L225 Difference]: With dead ends: 709 [2022-01-10 12:23:31,746 INFO L226 Difference]: Without dead ends: 462 [2022-01-10 12:23:31,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:23:31,747 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 423 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:31,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 656 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:31,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-01-10 12:23:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 223. [2022-01-10 12:23:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 220 states have (on average 1.2727272727272727) internal successors, (280), 222 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 280 transitions. [2022-01-10 12:23:31,780 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 280 transitions. Word has length 27 [2022-01-10 12:23:31,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:31,784 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 280 transitions. [2022-01-10 12:23:31,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:31,784 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 280 transitions. [2022-01-10 12:23:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 12:23:31,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:31,786 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] [2022-01-10 12:23:31,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:23:31,786 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:31,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1132752432, now seen corresponding path program 1 times [2022-01-10 12:23:31,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:31,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296466979] [2022-01-10 12:23:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:31,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:31,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:31,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296466979] [2022-01-10 12:23:31,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296466979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:31,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:31,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:23:31,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750986142] [2022-01-10 12:23:31,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:31,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:23:31,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:31,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:23:31,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:23:31,857 INFO L87 Difference]: Start difference. First operand 223 states and 280 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:32,024 INFO L93 Difference]: Finished difference Result 655 states and 817 transitions. [2022-01-10 12:23:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:23:32,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2022-01-10 12:23:32,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:32,026 INFO L225 Difference]: With dead ends: 655 [2022-01-10 12:23:32,026 INFO L226 Difference]: Without dead ends: 649 [2022-01-10 12:23:32,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:23:32,028 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 436 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:32,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 965 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:23:32,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-01-10 12:23:32,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 223. [2022-01-10 12:23:32,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 220 states have (on average 1.259090909090909) internal successors, (277), 222 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 277 transitions. [2022-01-10 12:23:32,047 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 277 transitions. Word has length 36 [2022-01-10 12:23:32,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:32,049 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 277 transitions. [2022-01-10 12:23:32,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,049 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 277 transitions. [2022-01-10 12:23:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 12:23:32,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:32,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:32,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:23:32,051 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash -939025585, now seen corresponding path program 1 times [2022-01-10 12:23:32,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:32,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383175804] [2022-01-10 12:23:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:32,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:32,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:32,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383175804] [2022-01-10 12:23:32,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383175804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:32,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:32,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:23:32,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976711264] [2022-01-10 12:23:32,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:32,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:23:32,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:32,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:23:32,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:23:32,089 INFO L87 Difference]: Start difference. First operand 223 states and 277 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:32,151 INFO L93 Difference]: Finished difference Result 621 states and 763 transitions. [2022-01-10 12:23:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:23:32,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2022-01-10 12:23:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:32,153 INFO L225 Difference]: With dead ends: 621 [2022-01-10 12:23:32,153 INFO L226 Difference]: Without dead ends: 405 [2022-01-10 12:23:32,154 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 [2022-01-10 12:23:32,155 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 225 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:32,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 445 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-01-10 12:23:32,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 231. [2022-01-10 12:23:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.25) internal successors, (285), 230 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 285 transitions. [2022-01-10 12:23:32,174 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 285 transitions. Word has length 36 [2022-01-10 12:23:32,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:32,175 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 285 transitions. [2022-01-10 12:23:32,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,175 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 285 transitions. [2022-01-10 12:23:32,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 12:23:32,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:32,175 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] [2022-01-10 12:23:32,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:23:32,175 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:32,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:32,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1444584210, now seen corresponding path program 1 times [2022-01-10 12:23:32,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:32,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459197523] [2022-01-10 12:23:32,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:32,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:23:32,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:32,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459197523] [2022-01-10 12:23:32,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459197523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:32,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:32,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:23:32,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160430928] [2022-01-10 12:23:32,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:32,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:23:32,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:32,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:23:32,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:32,237 INFO L87 Difference]: Start difference. First operand 231 states and 285 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:32,305 INFO L93 Difference]: Finished difference Result 558 states and 685 transitions. [2022-01-10 12:23:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:23:32,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 36 [2022-01-10 12:23:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:32,306 INFO L225 Difference]: With dead ends: 558 [2022-01-10 12:23:32,306 INFO L226 Difference]: Without dead ends: 293 [2022-01-10 12:23:32,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:23:32,308 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 66 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:32,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 261 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:23:32,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-01-10 12:23:32,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2022-01-10 12:23:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 290 states have (on average 1.2310344827586206) internal successors, (357), 292 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 357 transitions. [2022-01-10 12:23:32,330 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 357 transitions. Word has length 36 [2022-01-10 12:23:32,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:32,331 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 357 transitions. [2022-01-10 12:23:32,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:23:32,331 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 357 transitions. [2022-01-10 12:23:32,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 12:23:32,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:32,331 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] [2022-01-10 12:23:32,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:23:32,332 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:23:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash 72071048, now seen corresponding path program 1 times [2022-01-10 12:23:32,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:32,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441416823] [2022-01-10 12:23:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:32,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:23:32,346 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 12:23:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 12:23:32,374 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 12:23:32,374 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 12:23:32,375 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 12:23:32,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 12:23:32,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 12:23:32,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:23:32,378 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:23:32,381 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 12:23:32,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:23:32 BasicIcfg [2022-01-10 12:23:32,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 12:23:32,425 INFO L158 Benchmark]: Toolchain (without parser) took 2946.92ms. Allocated memory was 205.5MB in the beginning and 286.3MB in the end (delta: 80.7MB). Free memory was 155.1MB in the beginning and 214.8MB in the end (delta: -59.6MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. [2022-01-10 12:23:32,425 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 205.5MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 12:23:32,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.79ms. Allocated memory is still 205.5MB. Free memory was 154.9MB in the beginning and 166.7MB in the end (delta: -11.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-10 12:23:32,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.19ms. Allocated memory is still 205.5MB. Free memory was 166.7MB in the beginning and 164.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 12:23:32,425 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 205.5MB. Free memory was 164.1MB in the beginning and 162.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 12:23:32,426 INFO L158 Benchmark]: RCFGBuilder took 446.18ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 142.6MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-10 12:23:32,426 INFO L158 Benchmark]: IcfgTransformer took 110.33ms. Allocated memory is still 205.5MB. Free memory was 142.6MB in the beginning and 136.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-10 12:23:32,426 INFO L158 Benchmark]: TraceAbstraction took 1815.48ms. Allocated memory was 205.5MB in the beginning and 286.3MB in the end (delta: 80.7MB). Free memory was 135.7MB in the beginning and 214.8MB in the end (delta: -79.0MB). Peak memory consumption was 2.8MB. Max. memory is 8.0GB. [2022-01-10 12:23:32,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 205.5MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 477.79ms. Allocated memory is still 205.5MB. Free memory was 154.9MB in the beginning and 166.7MB in the end (delta: -11.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.19ms. Allocated memory is still 205.5MB. Free memory was 166.7MB in the beginning and 164.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 205.5MB. Free memory was 164.1MB in the beginning and 162.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 446.18ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 142.6MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * IcfgTransformer took 110.33ms. Allocated memory is still 205.5MB. Free memory was 142.6MB in the beginning and 136.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 1815.48ms. Allocated memory was 205.5MB in the beginning and 286.3MB in the end (delta: 80.7MB). Free memory was 135.7MB in the beginning and 214.8MB in the end (delta: -79.0MB). Peak memory consumption was 2.8MB. 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: 524]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int waterLevel = 1; [L535] int methaneLevelCritical = 0; [L699] int pumpRunning = 0; [L700] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L639] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L641] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L647] tmp = __VERIFIER_nondet_int() [L649] COND TRUE \read(tmp) [L651] CALL waterRise() [L552] COND TRUE waterLevel < 2 [L553] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] RET waterRise() [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND TRUE \read(tmp___0) [L661] CALL changeMethaneLevel() [L564] COND FALSE !(\read(methaneLevelCritical)) [L567] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L661] RET changeMethaneLevel() [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L671] CALL startSystem() [L855] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L671] RET startSystem() [L684] CALL timeShift() [L707] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L714] COND TRUE \read(systemActive) [L716] CALL processEnvironment() [L736] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] COND TRUE ! pumpRunning [L741] CALL, EXPR isHighWaterLevel() [L833] int retValue_acc ; [L834] int tmp ; [L835] int tmp___0 ; [L839] CALL, EXPR isHighWaterSensorDry() [L614] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L617] COND FALSE !(waterLevel < 2) [L621] retValue_acc = 0 [L622] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L839] RET, EXPR isHighWaterSensorDry() [L839] tmp = isHighWaterSensorDry() [L841] COND FALSE !(\read(tmp)) [L844] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L846] retValue_acc = tmp___0 [L847] 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] [L741] RET, EXPR isHighWaterLevel() [L741] tmp = isHighWaterLevel() [L743] COND TRUE \read(tmp) [L745] CALL activatePump() [L764] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L745] RET activatePump() [L716] RET processEnvironment() [L722] CALL __utac_acc__Specification1_spec__1() [L861] int tmp ; [L862] int tmp___0 ; [L866] CALL, EXPR isMethaneLevelCritical() [L573] int retValue_acc ; [L576] retValue_acc = methaneLevelCritical [L577] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L866] RET, EXPR isMethaneLevelCritical() [L866] tmp = isMethaneLevelCritical() [L868] COND TRUE \read(tmp) [L870] CALL, EXPR isPumpRunning() [L788] int retValue_acc ; [L791] retValue_acc = pumpRunning [L792] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L870] RET, EXPR isPumpRunning() [L870] tmp___0 = isPumpRunning() [L872] COND TRUE \read(tmp___0) [L874] CALL __automaton_fail() [L524] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 524]: 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: 524]: 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, 109 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1643 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1643 mSDsluCounter, 3454 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2077 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271 IncrementalHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 1377 mSDtfsCounter, 271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=293occurred in iteration=8, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 934 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-10 12:23:32,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...