/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_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:13:32,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:13:32,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:13:32,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:13:32,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:13:32,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:13:32,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:13:32,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:13:32,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:13:32,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:13:32,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:13:32,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:13:32,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:13:32,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:13:32,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:13:32,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:13:32,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:13:32,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:13:32,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:13:32,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:13:32,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:13:32,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:13:32,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:13:32,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:13:32,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:13:32,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:13:32,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:13:32,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:13:32,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:13:32,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:13:32,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:13:32,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:13:32,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:13:32,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:13:32,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:13:32,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:13:32,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:13:32,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:13:32,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:13:32,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:13:32,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:13:32,994 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:13:33,019 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:13:33,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:13:33,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:13:33,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:13:33,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:13:33,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:13:33,021 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:13:33,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:13:33,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:13:33,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:13:33,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:13:33,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:13:33,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:13:33,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:13:33,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:13:33,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:13:33,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:13:33,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:13:33,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:13:33,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:13:33,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:13:33,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:13:33,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:13:33,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:13:33,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:13:33,026 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:13:33,026 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:13:33,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:13:33,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:13:33,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:13:33,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:13:33,228 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:13:33,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2022-01-10 18:13:33,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4d7ce70/1a8b78d9f8a1480aa259351784240834/FLAG531f966c8 [2022-01-10 18:13:33,646 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:13:33,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2022-01-10 18:13:33,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4d7ce70/1a8b78d9f8a1480aa259351784240834/FLAG531f966c8 [2022-01-10 18:13:33,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4d7ce70/1a8b78d9f8a1480aa259351784240834 [2022-01-10 18:13:33,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:13:33,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:13:33,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:13:33,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:13:33,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:13:33,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180edd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:33, skipping insertion in model container [2022-01-10 18:13:33,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:13:33" (1/1) ... [2022-01-10 18:13:33,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:13:33,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:13:33,899 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_product42.cil.c[15994,16007] [2022-01-10 18:13:33,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:13:33,914 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:13:33,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:13:33,972 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_product42.cil.c[15994,16007] [2022-01-10 18:13:33,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:13:33,993 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:13:34,040 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_product42.cil.c[15994,16007] [2022-01-10 18:13:34,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:13:34,061 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:13:34,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34 WrapperNode [2022-01-10 18:13:34,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:13:34,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:13:34,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:13:34,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:13:34,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,110 INFO L137 Inliner]: procedures = 56, calls = 152, calls flagged for inlining = 49, calls inlined = 57, statements flattened = 455 [2022-01-10 18:13:34,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:13:34,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:13:34,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:13:34,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:13:34,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:13:34,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:13:34,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:13:34,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:13:34,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:13:34,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:13:34,200 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 18:13:34,211 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 18:13:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:13:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:13:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:13:34,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:13:34,311 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:13:34,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:13:34,600 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:13:34,606 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:13:34,606 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 18:13:34,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:13:34 BoogieIcfgContainer [2022-01-10 18:13:34,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:13:34,608 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:13:34,608 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:13:34,609 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:13:34,611 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:13:34" (1/1) ... [2022-01-10 18:13:34,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:13:34 BasicIcfg [2022-01-10 18:13:34,710 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:13:34,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:13:34,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:13:34,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:13:34,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:13:33" (1/4) ... [2022-01-10 18:13:34,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564ee461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:13:34, skipping insertion in model container [2022-01-10 18:13:34,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:13:34" (2/4) ... [2022-01-10 18:13:34,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564ee461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:13:34, skipping insertion in model container [2022-01-10 18:13:34,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:13:34" (3/4) ... [2022-01-10 18:13:34,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564ee461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:13:34, skipping insertion in model container [2022-01-10 18:13:34,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:13:34" (4/4) ... [2022-01-10 18:13:34,715 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.cTransformedIcfg [2022-01-10 18:13:34,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:13:34,719 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 18:13:34,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:13:34,754 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 18:13:34,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 18:13:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 117 states have (on average 1.393162393162393) internal successors, (163), 120 states have internal predecessors, (163), 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 18:13:34,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 18:13:34,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:34,772 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 18:13:34,772 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 18:13:34,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:34,776 INFO L85 PathProgramCache]: Analyzing trace with hash -293378484, now seen corresponding path program 1 times [2022-01-10 18:13:34,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:34,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221330904] [2022-01-10 18:13:34,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:34,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:34,956 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 18:13:34,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:34,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221330904] [2022-01-10 18:13:34,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221330904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:34,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:34,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:34,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882731570] [2022-01-10 18:13:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:34,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:13:34,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:34,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:13:34,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:13:34,992 INFO L87 Difference]: Start difference. First operand has 121 states, 117 states have (on average 1.393162393162393) internal successors, (163), 120 states have internal predecessors, (163), 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 18:13:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,032 INFO L93 Difference]: Finished difference Result 232 states and 315 transitions. [2022-01-10 18:13:35,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:13:35,034 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 18:13:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,043 INFO L225 Difference]: With dead ends: 232 [2022-01-10 18:13:35,043 INFO L226 Difference]: Without dead ends: 111 [2022-01-10 18:13:35,046 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 18:13:35,048 INFO L933 BasicCegarLoop]: 153 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, 153 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 18:13:35,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-01-10 18:13:35,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-01-10 18:13:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.3425925925925926) internal successors, (145), 110 states have internal predecessors, (145), 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 18:13:35,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2022-01-10 18:13:35,096 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 17 [2022-01-10 18:13:35,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,096 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-01-10 18:13:35,097 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 18:13:35,097 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2022-01-10 18:13:35,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 18:13:35,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,097 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 18:13:35,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:13:35,098 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 18:13:35,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1109754240, now seen corresponding path program 1 times [2022-01-10 18:13:35,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369885654] [2022-01-10 18:13:35,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,189 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 18:13:35,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369885654] [2022-01-10 18:13:35,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369885654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:35,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716977453] [2022-01-10 18:13:35,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:13:35,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:13:35,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:13:35,196 INFO L87 Difference]: Start difference. First operand 111 states and 145 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 18:13:35,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,222 INFO L93 Difference]: Finished difference Result 215 states and 283 transitions. [2022-01-10 18:13:35,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:13:35,222 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 18:13:35,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,223 INFO L225 Difference]: With dead ends: 215 [2022-01-10 18:13:35,223 INFO L226 Difference]: Without dead ends: 111 [2022-01-10 18:13:35,224 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 18:13:35,225 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 139 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 18:13:35,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 139 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:35,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-01-10 18:13:35,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-01-10 18:13:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 110 states have internal predecessors, (142), 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 18:13:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2022-01-10 18:13:35,232 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 18 [2022-01-10 18:13:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,233 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2022-01-10 18:13:35,233 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 18:13:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2022-01-10 18:13:35,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 18:13:35,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,234 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 18:13:35,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:13:35,234 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 18:13:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash 753050072, now seen corresponding path program 1 times [2022-01-10 18:13:35,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588463868] [2022-01-10 18:13:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,295 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 18:13:35,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588463868] [2022-01-10 18:13:35,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588463868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:35,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806695527] [2022-01-10 18:13:35,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:13:35,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:13:35,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:13:35,297 INFO L87 Difference]: Start difference. First operand 111 states and 142 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 18:13:35,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,362 INFO L93 Difference]: Finished difference Result 277 states and 355 transitions. [2022-01-10 18:13:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:13:35,362 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 18:13:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,363 INFO L225 Difference]: With dead ends: 277 [2022-01-10 18:13:35,363 INFO L226 Difference]: Without dead ends: 173 [2022-01-10 18:13:35,364 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 18:13:35,365 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 106 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:35,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 211 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-01-10 18:13:35,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 167. [2022-01-10 18:13:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 164 states have (on average 1.2865853658536586) internal successors, (211), 166 states have internal predecessors, (211), 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 18:13:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 211 transitions. [2022-01-10 18:13:35,379 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 211 transitions. Word has length 21 [2022-01-10 18:13:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,379 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 211 transitions. [2022-01-10 18:13:35,379 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 18:13:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 211 transitions. [2022-01-10 18:13:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 18:13:35,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,380 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 18:13:35,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:13:35,381 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 18:13:35,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1328567260, now seen corresponding path program 1 times [2022-01-10 18:13:35,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867921405] [2022-01-10 18:13:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,484 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 18:13:35,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867921405] [2022-01-10 18:13:35,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867921405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:13:35,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837940038] [2022-01-10 18:13:35,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:13:35,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:13:35,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:13:35,488 INFO L87 Difference]: Start difference. First operand 167 states and 211 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 18:13:35,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:35,662 INFO L93 Difference]: Finished difference Result 735 states and 939 transitions. [2022-01-10 18:13:35,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:13:35,663 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 18:13:35,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:35,668 INFO L225 Difference]: With dead ends: 735 [2022-01-10 18:13:35,668 INFO L226 Difference]: Without dead ends: 474 [2022-01-10 18:13:35,671 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 18:13:35,679 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 474 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:35,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 708 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:35,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-01-10 18:13:35,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 231. [2022-01-10 18:13:35,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.280701754385965) internal successors, (292), 230 states have internal predecessors, (292), 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 18:13:35,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 292 transitions. [2022-01-10 18:13:35,747 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 292 transitions. Word has length 27 [2022-01-10 18:13:35,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:35,748 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 292 transitions. [2022-01-10 18:13:35,748 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 18:13:35,748 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 292 transitions. [2022-01-10 18:13:35,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 18:13:35,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:35,749 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 18:13:35,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:13:35,749 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:35,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash -52593451, now seen corresponding path program 1 times [2022-01-10 18:13:35,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:35,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367179487] [2022-01-10 18:13:35,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:35,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:35,843 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 18:13:35,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:35,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367179487] [2022-01-10 18:13:35,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367179487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:35,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:35,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:13:35,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100742633] [2022-01-10 18:13:35,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:35,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:13:35,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:35,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:13:35,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:13:35,845 INFO L87 Difference]: Start difference. First operand 231 states and 292 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 18:13:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,015 INFO L93 Difference]: Finished difference Result 687 states and 865 transitions. [2022-01-10 18:13:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:13:36,015 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 18:13:36,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,017 INFO L225 Difference]: With dead ends: 687 [2022-01-10 18:13:36,017 INFO L226 Difference]: Without dead ends: 681 [2022-01-10 18:13:36,018 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 18:13:36,019 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 519 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 1060 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:36,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-01-10 18:13:36,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 231. [2022-01-10 18:13:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.2675438596491229) internal successors, (289), 230 states have internal predecessors, (289), 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 18:13:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 289 transitions. [2022-01-10 18:13:36,045 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 289 transitions. Word has length 36 [2022-01-10 18:13:36,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:36,048 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 289 transitions. [2022-01-10 18:13:36,049 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 18:13:36,049 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 289 transitions. [2022-01-10 18:13:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 18:13:36,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:36,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:36,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:13:36,054 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 18:13:36,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:36,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1255044911, now seen corresponding path program 1 times [2022-01-10 18:13:36,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:36,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997657402] [2022-01-10 18:13:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:36,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:36,130 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 18:13:36,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:36,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997657402] [2022-01-10 18:13:36,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997657402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:36,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:36,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:13:36,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316752893] [2022-01-10 18:13:36,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:36,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:13:36,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:36,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:13:36,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:13:36,132 INFO L87 Difference]: Start difference. First operand 231 states and 289 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,250 INFO L93 Difference]: Finished difference Result 621 states and 771 transitions. [2022-01-10 18:13:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:13:36,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 18:13:36,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,252 INFO L225 Difference]: With dead ends: 621 [2022-01-10 18:13:36,253 INFO L226 Difference]: Without dead ends: 397 [2022-01-10 18:13:36,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-10 18:13:36,254 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 418 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 694 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-01-10 18:13:36,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 243. [2022-01-10 18:13:36,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 240 states have (on average 1.2541666666666667) internal successors, (301), 242 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 301 transitions. [2022-01-10 18:13:36,274 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 301 transitions. Word has length 40 [2022-01-10 18:13:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:36,276 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 301 transitions. [2022-01-10 18:13:36,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,276 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 301 transitions. [2022-01-10 18:13:36,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 18:13:36,278 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:36,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:36,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:13:36,278 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 18:13:36,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:36,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1765579088, now seen corresponding path program 1 times [2022-01-10 18:13:36,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:36,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412898879] [2022-01-10 18:13:36,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:36,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:36,332 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 18:13:36,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:36,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412898879] [2022-01-10 18:13:36,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412898879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:36,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:36,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:13:36,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834507552] [2022-01-10 18:13:36,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:36,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:13:36,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:36,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:13:36,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:13:36,334 INFO L87 Difference]: Start difference. First operand 243 states and 301 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,420 INFO L93 Difference]: Finished difference Result 661 states and 811 transitions. [2022-01-10 18:13:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:13:36,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 18:13:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,425 INFO L225 Difference]: With dead ends: 661 [2022-01-10 18:13:36,425 INFO L226 Difference]: Without dead ends: 425 [2022-01-10 18:13:36,425 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 18:13:36,426 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 225 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 463 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-01-10 18:13:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 251. [2022-01-10 18:13:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 248 states have (on average 1.2459677419354838) internal successors, (309), 250 states have internal predecessors, (309), 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 18:13:36,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 309 transitions. [2022-01-10 18:13:36,449 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 309 transitions. Word has length 40 [2022-01-10 18:13:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:36,450 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 309 transitions. [2022-01-10 18:13:36,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,450 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 309 transitions. [2022-01-10 18:13:36,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 18:13:36,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:36,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:36,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:13:36,451 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 18:13:36,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:36,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1532315855, now seen corresponding path program 1 times [2022-01-10 18:13:36,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:36,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048346152] [2022-01-10 18:13:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:36,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:36,507 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 18:13:36,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:36,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048346152] [2022-01-10 18:13:36,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048346152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:36,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:36,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:13:36,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243191456] [2022-01-10 18:13:36,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:36,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:13:36,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:13:36,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:13:36,508 INFO L87 Difference]: Start difference. First operand 251 states and 309 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,708 INFO L93 Difference]: Finished difference Result 897 states and 1107 transitions. [2022-01-10 18:13:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 18:13:36,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 18:13:36,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,710 INFO L225 Difference]: With dead ends: 897 [2022-01-10 18:13:36,710 INFO L226 Difference]: Without dead ends: 492 [2022-01-10 18:13:36,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-01-10 18:13:36,713 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 554 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [554 Valid, 1171 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:13:36,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-01-10 18:13:36,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 186. [2022-01-10 18:13:36,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 183 states have (on average 1.2349726775956285) internal successors, (226), 185 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 226 transitions. [2022-01-10 18:13:36,735 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 226 transitions. Word has length 40 [2022-01-10 18:13:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:36,735 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 226 transitions. [2022-01-10 18:13:36,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:13:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 226 transitions. [2022-01-10 18:13:36,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 18:13:36,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:36,737 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:36,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:13:36,737 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 18:13:36,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:36,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1566029540, now seen corresponding path program 1 times [2022-01-10 18:13:36,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:36,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265804455] [2022-01-10 18:13:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:36,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:13:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 18:13:36,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:13:36,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265804455] [2022-01-10 18:13:36,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265804455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:13:36,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:13:36,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:13:36,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130367994] [2022-01-10 18:13:36,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:13:36,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:13:36,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:13:36,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:13:36,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:13:36,841 INFO L87 Difference]: Start difference. First operand 186 states and 226 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 18:13:36,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:13:36,896 INFO L93 Difference]: Finished difference Result 427 states and 520 transitions. [2022-01-10 18:13:36,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:13:36,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-01-10 18:13:36,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:13:36,898 INFO L225 Difference]: With dead ends: 427 [2022-01-10 18:13:36,899 INFO L226 Difference]: Without dead ends: 248 [2022-01-10 18:13:36,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:13:36,900 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 24 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:13:36,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 193 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:13:36,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-01-10 18:13:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-01-10 18:13:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 245 states have (on average 1.2122448979591838) internal successors, (297), 247 states have internal predecessors, (297), 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 18:13:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 297 transitions. [2022-01-10 18:13:36,928 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 297 transitions. Word has length 62 [2022-01-10 18:13:36,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:13:36,928 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 297 transitions. [2022-01-10 18:13:36,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 18:13:36,929 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 297 transitions. [2022-01-10 18:13:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 18:13:36,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:13:36,929 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:36,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:13:36,929 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:13:36,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:13:36,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1546830206, now seen corresponding path program 1 times [2022-01-10 18:13:36,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:13:36,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920854900] [2022-01-10 18:13:36,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:13:36,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:13:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:13:36,962 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 18:13:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:13:37,031 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 18:13:37,031 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 18:13:37,032 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 18:13:37,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 18:13:37,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 18:13:37,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:13:37,036 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:13:37,039 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 18:13:37,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:13:37 BasicIcfg [2022-01-10 18:13:37,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 18:13:37,140 INFO L158 Benchmark]: Toolchain (without parser) took 3463.62ms. Allocated memory was 195.0MB in the beginning and 260.0MB in the end (delta: 65.0MB). Free memory was 136.9MB in the beginning and 195.1MB in the end (delta: -58.3MB). Peak memory consumption was 122.4MB. Max. memory is 8.0GB. [2022-01-10 18:13:37,140 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 18:13:37,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.01ms. Allocated memory was 195.0MB in the beginning and 260.0MB in the end (delta: 65.0MB). Free memory was 136.7MB in the beginning and 216.6MB in the end (delta: -79.9MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2022-01-10 18:13:37,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.38ms. Allocated memory is still 260.0MB. Free memory was 216.6MB in the beginning and 213.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 18:13:37,141 INFO L158 Benchmark]: Boogie Preprocessor took 38.09ms. Allocated memory is still 260.0MB. Free memory was 213.4MB in the beginning and 211.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 18:13:37,141 INFO L158 Benchmark]: RCFGBuilder took 455.80ms. Allocated memory is still 260.0MB. Free memory was 211.3MB in the beginning and 191.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-10 18:13:37,141 INFO L158 Benchmark]: IcfgTransformer took 101.87ms. Allocated memory is still 260.0MB. Free memory was 191.4MB in the beginning and 184.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-10 18:13:37,142 INFO L158 Benchmark]: TraceAbstraction took 2428.71ms. Allocated memory is still 260.0MB. Free memory was 183.5MB in the beginning and 195.1MB in the end (delta: -11.6MB). Peak memory consumption was 103.7MB. Max. memory is 8.0GB. [2022-01-10 18:13:37,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 386.01ms. Allocated memory was 195.0MB in the beginning and 260.0MB in the end (delta: 65.0MB). Free memory was 136.7MB in the beginning and 216.6MB in the end (delta: -79.9MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.38ms. Allocated memory is still 260.0MB. Free memory was 216.6MB in the beginning and 213.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.09ms. Allocated memory is still 260.0MB. Free memory was 213.4MB in the beginning and 211.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 455.80ms. Allocated memory is still 260.0MB. Free memory was 211.3MB in the beginning and 191.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * IcfgTransformer took 101.87ms. Allocated memory is still 260.0MB. Free memory was 191.4MB in the beginning and 184.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 2428.71ms. Allocated memory is still 260.0MB. Free memory was 183.5MB in the beginning and 195.1MB in the end (delta: -11.6MB). Peak memory consumption was 103.7MB. 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: 774]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L591] int pumpRunning = 0; [L592] int systemActive = 1; [L843] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] int retValue_acc ; [L917] int tmp ; [L921] FCALL select_helpers() [L922] FCALL select_features() [L923] CALL, EXPR valid_product() [L834] int retValue_acc ; [L837] retValue_acc = 1 [L838] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L923] RET, EXPR valid_product() [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L927] FCALL setup() [L928] CALL runTest() [L910] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L530] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L532] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L566] tmp___1 = __VERIFIER_nondet_int() [L568] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L575] CALL timeShift() [L599] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] COND TRUE \read(systemActive) [L608] CALL processEnvironment() [L628] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND TRUE ! pumpRunning [L633] CALL, EXPR isHighWaterLevel() [L743] int retValue_acc ; [L744] int tmp ; [L745] int tmp___0 ; [L749] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND FALSE !(waterLevel < 2) [L510] retValue_acc = 0 [L511] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L749] RET, EXPR isHighWaterSensorDry() [L749] tmp = isHighWaterSensorDry() [L751] COND FALSE !(\read(tmp)) [L754] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L756] retValue_acc = tmp___0 [L757] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L633] RET, EXPR isHighWaterLevel() [L633] tmp = isHighWaterLevel() [L635] COND TRUE \read(tmp) [L637] CALL activatePump() [L662] int tmp ; [L666] CALL, EXPR isMethaneAlarm() [L687] int retValue_acc ; [L691] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L691] RET, EXPR isMethaneLevelCritical() [L691] retValue_acc = isMethaneLevelCritical() [L693] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L666] RET, EXPR isMethaneAlarm() [L666] tmp = isMethaneAlarm() [L668] COND FALSE !(\read(tmp)) [L672] CALL activatePump__wrappee__highWaterSensor() [L656] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L672] RET activatePump__wrappee__highWaterSensor() [L637] RET activatePump() [L608] RET processEnvironment() [L614] CALL __utac_acc__Specification1_spec__1() [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L785] RET, EXPR isMethaneLevelCritical() [L785] tmp = isMethaneLevelCritical() [L787] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L614] RET __utac_acc__Specification1_spec__1() [L575] RET timeShift() [L530] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L532] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L538] tmp = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___0) [L552] CALL changeMethaneLevel() [L453] COND FALSE !(\read(methaneLevelCritical)) [L456] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L552] RET changeMethaneLevel() [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L566] tmp___1 = __VERIFIER_nondet_int() [L568] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L575] CALL timeShift() [L599] COND TRUE \read(pumpRunning) [L601] CALL lowerWaterLevel() [L429] COND TRUE waterLevel > 0 [L430] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L601] RET lowerWaterLevel() [L606] COND TRUE \read(systemActive) [L608] CALL processEnvironment() [L628] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L631] COND FALSE !(! pumpRunning) [L646] FCALL processEnvironment__wrappee__base() [L608] RET processEnvironment() [L614] CALL __utac_acc__Specification1_spec__1() [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L785] RET, EXPR isMethaneLevelCritical() [L785] tmp = isMethaneLevelCritical() [L787] COND TRUE \read(tmp) [L789] CALL, EXPR isPumpRunning() [L698] int retValue_acc ; [L701] retValue_acc = pumpRunning [L702] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L789] RET, EXPR isPumpRunning() [L789] tmp___0 = isPumpRunning() [L791] COND TRUE \read(tmp___0) [L793] CALL __automaton_fail() [L774] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - UnprovableResult [Line: 774]: 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: 774]: 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, 121 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2450 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2450 mSDsluCounter, 4792 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3087 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 1705 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=7, InterpolantAutomatonStates: 54, 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, 9 MinimizatonAttempts, 1333 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 778 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 17/17 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 18:13:37,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...