/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_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:17:09,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:17:09,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:17:09,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:17:09,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:17:09,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:17:09,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:17:09,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:17:09,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:17:09,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:17:09,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:17:09,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:17:09,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:17:09,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:17:09,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:17:09,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:17:09,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:17:09,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:17:09,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:17:09,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:17:09,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:17:09,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:17:09,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:17:09,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:17:09,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:17:09,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:17:09,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:17:09,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:17:09,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:17:09,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:17:09,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:17:09,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:17:09,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:17:09,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:17:09,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:17:09,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:17:09,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:17:09,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:17:09,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:17:09,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:17:09,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:17:09,991 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 18:17:10,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:17:10,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:17:10,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:17:10,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:17:10,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:17:10,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:17:10,037 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:17:10,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:17:10,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:17:10,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:17:10,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:17:10,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:17:10,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:17:10,038 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:17:10,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:10,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:17:10,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:17:10,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:17:10,041 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:17:10,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:17:10,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:17:10,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:17:10,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:17:10,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:17:10,416 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:17:10,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2022-01-10 18:17:10,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fca8133e/e159bc62082d44d2ba26e81c42fc4bdf/FLAG338a71148 [2022-01-10 18:17:11,129 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:17:11,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2022-01-10 18:17:11,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fca8133e/e159bc62082d44d2ba26e81c42fc4bdf/FLAG338a71148 [2022-01-10 18:17:11,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fca8133e/e159bc62082d44d2ba26e81c42fc4bdf [2022-01-10 18:17:11,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:17:11,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:17:11,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:11,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:17:11,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:17:11,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:11" (1/1) ... [2022-01-10 18:17:11,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166991d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:11, skipping insertion in model container [2022-01-10 18:17:11,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:11" (1/1) ... [2022-01-10 18:17:11,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:17:11,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:11,844 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_spec4_product45.cil.c[5266,5279] [2022-01-10 18:17:11,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:11,986 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:17:12,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:12,037 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_spec4_product45.cil.c[5266,5279] [2022-01-10 18:17:12,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:12,128 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:17:12,179 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_spec4_product45.cil.c[5266,5279] [2022-01-10 18:17:12,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:12,259 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:17:12,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12 WrapperNode [2022-01-10 18:17:12,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:12,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:12,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:17:12,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:17:12,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,370 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 95, statements flattened = 707 [2022-01-10 18:17:12,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:12,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:17:12,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:17:12,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:17:12,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:17:12,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:17:12,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:17:12,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:17:12,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (1/1) ... [2022-01-10 18:17:12,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:12,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:12,563 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 18:17:12,565 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 18:17:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:17:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:17:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:17:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:17:12,671 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:17:12,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:17:13,319 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:17:13,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:17:13,325 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 18:17:13,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:13 BoogieIcfgContainer [2022-01-10 18:17:13,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:17:13,327 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:17:13,331 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:17:13,333 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:17:13,335 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:13" (1/1) ... [2022-01-10 18:17:13,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:17:13 BasicIcfg [2022-01-10 18:17:13,567 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:17:13,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:17:13,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:17:13,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:17:13,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:17:11" (1/4) ... [2022-01-10 18:17:13,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513a1ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:17:13, skipping insertion in model container [2022-01-10 18:17:13,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:12" (2/4) ... [2022-01-10 18:17:13,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513a1ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:17:13, skipping insertion in model container [2022-01-10 18:17:13,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:13" (3/4) ... [2022-01-10 18:17:13,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513a1ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:17:13, skipping insertion in model container [2022-01-10 18:17:13,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:17:13" (4/4) ... [2022-01-10 18:17:13,574 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.cTransformedIcfg [2022-01-10 18:17:13,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:17:13,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 18:17:13,669 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:17:13,681 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 18:17:13,681 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 18:17:13,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 179 states have (on average 1.3743016759776536) internal successors, (246), 182 states have internal predecessors, (246), 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 18:17:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 18:17:13,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:13,738 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 18:17:13,739 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 18:17:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1296668155, now seen corresponding path program 1 times [2022-01-10 18:17:13,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:13,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129417303] [2022-01-10 18:17:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:13,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:14,038 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 18:17:14,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:14,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129417303] [2022-01-10 18:17:14,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129417303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:14,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:14,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:14,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993674259] [2022-01-10 18:17:14,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:14,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:17:14,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:17:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:17:14,066 INFO L87 Difference]: Start difference. First operand has 183 states, 179 states have (on average 1.3743016759776536) internal successors, (246), 182 states have internal predecessors, (246), 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 18:17:14,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:14,092 INFO L93 Difference]: Finished difference Result 356 states and 481 transitions. [2022-01-10 18:17:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:17:14,094 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 18:17:14,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:14,101 INFO L225 Difference]: With dead ends: 356 [2022-01-10 18:17:14,101 INFO L226 Difference]: Without dead ends: 173 [2022-01-10 18:17:14,104 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 18:17:14,107 INFO L933 BasicCegarLoop]: 236 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, 236 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 18:17:14,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:14,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-01-10 18:17:14,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-01-10 18:17:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 172 states have internal predecessors, (228), 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 18:17:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2022-01-10 18:17:14,169 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 228 transitions. Word has length 17 [2022-01-10 18:17:14,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:14,169 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-01-10 18:17:14,169 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 18:17:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2022-01-10 18:17:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 18:17:14,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:14,170 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 18:17:14,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:17:14,170 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 18:17:14,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:14,174 INFO L85 PathProgramCache]: Analyzing trace with hash 935140005, now seen corresponding path program 1 times [2022-01-10 18:17:14,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:14,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711017977] [2022-01-10 18:17:14,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:14,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:14,249 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 18:17:14,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:14,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711017977] [2022-01-10 18:17:14,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711017977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:14,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:14,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:14,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131175534] [2022-01-10 18:17:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:14,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:14,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:14,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:14,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:14,252 INFO L87 Difference]: Start difference. First operand 173 states and 228 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 18:17:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:14,280 INFO L93 Difference]: Finished difference Result 339 states and 449 transitions. [2022-01-10 18:17:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:14,288 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 18:17:14,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:14,289 INFO L225 Difference]: With dead ends: 339 [2022-01-10 18:17:14,289 INFO L226 Difference]: Without dead ends: 173 [2022-01-10 18:17:14,290 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 18:17:14,291 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 214 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:14,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 222 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:14,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-01-10 18:17:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-01-10 18:17:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 170 states have (on average 1.3235294117647058) internal successors, (225), 172 states have internal predecessors, (225), 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 18:17:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2022-01-10 18:17:14,328 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 18 [2022-01-10 18:17:14,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:14,328 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2022-01-10 18:17:14,328 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 18:17:14,329 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2022-01-10 18:17:14,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 18:17:14,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:14,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:14,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:17:14,330 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 18:17:14,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:14,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1555928396, now seen corresponding path program 1 times [2022-01-10 18:17:14,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:14,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425691553] [2022-01-10 18:17:14,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:14,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:14,460 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 18:17:14,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:14,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425691553] [2022-01-10 18:17:14,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425691553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:14,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:14,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:14,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565390074] [2022-01-10 18:17:14,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:14,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:14,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:14,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:14,462 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:14,608 INFO L93 Difference]: Finished difference Result 406 states and 526 transitions. [2022-01-10 18:17:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-10 18:17:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:14,610 INFO L225 Difference]: With dead ends: 406 [2022-01-10 18:17:14,610 INFO L226 Difference]: Without dead ends: 240 [2022-01-10 18:17:14,611 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 18:17:14,612 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 158 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:14,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 308 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-01-10 18:17:14,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2022-01-10 18:17:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 231 states have (on average 1.2813852813852813) internal successors, (296), 233 states have internal predecessors, (296), 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 18:17:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 296 transitions. [2022-01-10 18:17:14,655 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 296 transitions. Word has length 23 [2022-01-10 18:17:14,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:14,655 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-01-10 18:17:14,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:14,656 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 296 transitions. [2022-01-10 18:17:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 18:17:14,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:14,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:14,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:17:14,660 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 18:17:14,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:14,661 INFO L85 PathProgramCache]: Analyzing trace with hash -263461167, now seen corresponding path program 1 times [2022-01-10 18:17:14,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:14,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699683324] [2022-01-10 18:17:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:14,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:14,842 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 18:17:14,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:14,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699683324] [2022-01-10 18:17:14,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699683324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:14,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:14,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:14,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214137593] [2022-01-10 18:17:14,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:14,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:14,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:14,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:14,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:14,850 INFO L87 Difference]: Start difference. First operand 234 states and 296 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:15,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:15,211 INFO L93 Difference]: Finished difference Result 1295 states and 1644 transitions. [2022-01-10 18:17:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:17:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-10 18:17:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:15,217 INFO L225 Difference]: With dead ends: 1295 [2022-01-10 18:17:15,217 INFO L226 Difference]: Without dead ends: 1068 [2022-01-10 18:17:15,228 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 18:17:15,237 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 989 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:15,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [989 Valid, 1274 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:17:15,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-01-10 18:17:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 441. [2022-01-10 18:17:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 438 states have (on average 1.264840182648402) internal successors, (554), 440 states have internal predecessors, (554), 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 18:17:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 554 transitions. [2022-01-10 18:17:15,330 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 554 transitions. Word has length 29 [2022-01-10 18:17:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:15,344 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 554 transitions. [2022-01-10 18:17:15,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 554 transitions. [2022-01-10 18:17:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 18:17:15,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:15,347 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] [2022-01-10 18:17:15,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:17:15,348 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 18:17:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1207598223, now seen corresponding path program 1 times [2022-01-10 18:17:15,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:15,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131391058] [2022-01-10 18:17:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:15,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:15,501 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 18:17:15,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:15,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131391058] [2022-01-10 18:17:15,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131391058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:15,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:15,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:15,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737197587] [2022-01-10 18:17:15,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:15,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:15,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:15,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:15,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:15,503 INFO L87 Difference]: Start difference. First operand 441 states and 554 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 18:17:15,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:15,828 INFO L93 Difference]: Finished difference Result 1315 states and 1643 transitions. [2022-01-10 18:17:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:17:15,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2022-01-10 18:17:15,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:15,857 INFO L225 Difference]: With dead ends: 1315 [2022-01-10 18:17:15,857 INFO L226 Difference]: Without dead ends: 1309 [2022-01-10 18:17:15,858 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 18:17:15,862 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 822 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:15,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [822 Valid, 1526 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:17:15,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2022-01-10 18:17:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 441. [2022-01-10 18:17:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 438 states have (on average 1.2579908675799087) internal successors, (551), 440 states have internal predecessors, (551), 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 18:17:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 551 transitions. [2022-01-10 18:17:15,948 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 551 transitions. Word has length 37 [2022-01-10 18:17:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:15,951 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 551 transitions. [2022-01-10 18:17:15,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 18:17:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 551 transitions. [2022-01-10 18:17:15,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 18:17:15,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:15,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:15,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:17:15,954 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 18:17:15,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash 43781656, now seen corresponding path program 1 times [2022-01-10 18:17:15,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:15,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314022158] [2022-01-10 18:17:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:15,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:16,049 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 18:17:16,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:16,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314022158] [2022-01-10 18:17:16,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314022158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:16,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:16,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:17:16,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050366329] [2022-01-10 18:17:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:16,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:16,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:16,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:16,051 INFO L87 Difference]: Start difference. First operand 441 states and 551 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 18:17:16,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:16,269 INFO L93 Difference]: Finished difference Result 1147 states and 1411 transitions. [2022-01-10 18:17:16,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:17:16,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 41 [2022-01-10 18:17:16,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:16,280 INFO L225 Difference]: With dead ends: 1147 [2022-01-10 18:17:16,280 INFO L226 Difference]: Without dead ends: 713 [2022-01-10 18:17:16,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:17:16,282 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 326 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:16,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 895 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-01-10 18:17:16,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 477. [2022-01-10 18:17:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 474 states have (on average 1.238396624472574) internal successors, (587), 476 states have internal predecessors, (587), 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 18:17:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 587 transitions. [2022-01-10 18:17:16,382 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 587 transitions. Word has length 41 [2022-01-10 18:17:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:16,383 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 587 transitions. [2022-01-10 18:17:16,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 18:17:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 587 transitions. [2022-01-10 18:17:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 18:17:16,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:16,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:16,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:17:16,385 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 18:17:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:16,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1397091353, now seen corresponding path program 1 times [2022-01-10 18:17:16,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:16,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908181101] [2022-01-10 18:17:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:16,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:16,456 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 18:17:16,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:16,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908181101] [2022-01-10 18:17:16,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908181101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:16,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:16,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:16,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853828093] [2022-01-10 18:17:16,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:16,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:17:16,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:16,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:17:16,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:17:16,458 INFO L87 Difference]: Start difference. First operand 477 states and 587 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:17:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:16,693 INFO L93 Difference]: Finished difference Result 1109 states and 1350 transitions. [2022-01-10 18:17:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:17:16,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2022-01-10 18:17:16,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:16,695 INFO L225 Difference]: With dead ends: 1109 [2022-01-10 18:17:16,696 INFO L226 Difference]: Without dead ends: 639 [2022-01-10 18:17:16,696 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 18:17:16,697 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 285 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:16,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 667 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:16,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-01-10 18:17:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 432. [2022-01-10 18:17:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 429 states have (on average 1.2214452214452214) internal successors, (524), 431 states have internal predecessors, (524), 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 18:17:16,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 524 transitions. [2022-01-10 18:17:16,782 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 524 transitions. Word has length 41 [2022-01-10 18:17:16,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:16,782 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 524 transitions. [2022-01-10 18:17:16,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:17:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 524 transitions. [2022-01-10 18:17:16,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 18:17:16,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:16,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:16,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:17:16,785 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:16,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1930494641, now seen corresponding path program 1 times [2022-01-10 18:17:16,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:16,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940186411] [2022-01-10 18:17:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:16,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:16,890 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 18:17:16,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:16,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940186411] [2022-01-10 18:17:16,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940186411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:16,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:16,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:17:16,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301288774] [2022-01-10 18:17:16,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:16,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:16,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:16,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:16,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:16,892 INFO L87 Difference]: Start difference. First operand 432 states and 524 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 18:17:16,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:16,925 INFO L93 Difference]: Finished difference Result 432 states and 524 transitions. [2022-01-10 18:17:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:16,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2022-01-10 18:17:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:16,926 INFO L225 Difference]: With dead ends: 432 [2022-01-10 18:17:16,926 INFO L226 Difference]: Without dead ends: 178 [2022-01-10 18:17:16,927 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 18:17:16,928 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 81 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:16,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 94 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:16,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-01-10 18:17:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-01-10 18:17:16,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.2542372881355932) internal successors, (222), 177 states have internal predecessors, (222), 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 18:17:16,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 222 transitions. [2022-01-10 18:17:16,947 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 222 transitions. Word has length 54 [2022-01-10 18:17:16,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:16,948 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 222 transitions. [2022-01-10 18:17:16,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 18:17:16,948 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 222 transitions. [2022-01-10 18:17:16,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 18:17:16,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:16,961 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, 1, 1, 1] [2022-01-10 18:17:16,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:17:16,961 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 18:17:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:16,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2003056267, now seen corresponding path program 1 times [2022-01-10 18:17:16,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:16,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876194490] [2022-01-10 18:17:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:16,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 18:17:17,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:17,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876194490] [2022-01-10 18:17:17,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876194490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:17,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:17,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:17,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870188818] [2022-01-10 18:17:17,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:17,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:17,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:17,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:17,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:17,116 INFO L87 Difference]: Start difference. First operand 178 states and 222 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:17,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:17,162 INFO L93 Difference]: Finished difference Result 380 states and 475 transitions. [2022-01-10 18:17:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:17,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-10 18:17:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:17,164 INFO L225 Difference]: With dead ends: 380 [2022-01-10 18:17:17,164 INFO L226 Difference]: Without dead ends: 209 [2022-01-10 18:17:17,164 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 18:17:17,180 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 22 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 159 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 18:17:17,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 159 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:17,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-01-10 18:17:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-01-10 18:17:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.2403846153846154) internal successors, (258), 208 states have internal predecessors, (258), 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 18:17:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 258 transitions. [2022-01-10 18:17:17,197 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 258 transitions. Word has length 65 [2022-01-10 18:17:17,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:17,202 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 258 transitions. [2022-01-10 18:17:17,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:17,202 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 258 transitions. [2022-01-10 18:17:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 18:17:17,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:17,204 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, 1, 1, 1] [2022-01-10 18:17:17,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:17:17,204 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 18:17:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2074606705, now seen corresponding path program 1 times [2022-01-10 18:17:17,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:17,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292378184] [2022-01-10 18:17:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:17,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 18:17:17,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:17,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292378184] [2022-01-10 18:17:17,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292378184] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:17:17,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868474315] [2022-01-10 18:17:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:17,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:17:17,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:17,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:17:17,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 18:17:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:17,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-10 18:17:17,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:17:18,399 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 18:17:18,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:17:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 18:17:18,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868474315] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:17:18,738 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:17:18,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-01-10 18:17:18,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503610838] [2022-01-10 18:17:18,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:17:18,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 18:17:18,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:18,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 18:17:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-01-10 18:17:18,740 INFO L87 Difference]: Start difference. First operand 209 states and 258 transitions. Second operand has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 13 states have internal predecessors, (135), 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 18:17:19,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:19,683 INFO L93 Difference]: Finished difference Result 1373 states and 1721 transitions. [2022-01-10 18:17:19,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-10 18:17:19,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 13 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-10 18:17:19,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:19,688 INFO L225 Difference]: With dead ends: 1373 [2022-01-10 18:17:19,688 INFO L226 Difference]: Without dead ends: 1202 [2022-01-10 18:17:19,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 122 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2022-01-10 18:17:19,690 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 1822 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:19,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1822 Valid, 1730 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:17:19,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-01-10 18:17:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 374. [2022-01-10 18:17:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 373 states have (on average 1.257372654155496) internal successors, (469), 373 states have internal predecessors, (469), 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 18:17:19,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 469 transitions. [2022-01-10 18:17:19,745 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 469 transitions. Word has length 67 [2022-01-10 18:17:19,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:19,745 INFO L470 AbstractCegarLoop]: Abstraction has 374 states and 469 transitions. [2022-01-10 18:17:19,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 13 states have internal predecessors, (135), 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 18:17:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 469 transitions. [2022-01-10 18:17:19,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 18:17:19,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:19,746 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-01-10 18:17:19,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 18:17:19,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-10 18:17:19,967 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:19,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:19,967 INFO L85 PathProgramCache]: Analyzing trace with hash 936578120, now seen corresponding path program 2 times [2022-01-10 18:17:19,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:19,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901317764] [2022-01-10 18:17:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:19,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:17:19,999 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 18:17:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:17:20,066 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 18:17:20,066 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 18:17:20,067 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 18:17:20,068 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 18:17:20,068 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 18:17:20,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:17:20,070 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:20,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 18:17:20,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:17:20 BasicIcfg [2022-01-10 18:17:20,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 18:17:20,292 INFO L158 Benchmark]: Toolchain (without parser) took 8784.66ms. Allocated memory was 166.7MB in the beginning and 253.8MB in the end (delta: 87.0MB). Free memory was 109.4MB in the beginning and 193.5MB in the end (delta: -84.0MB). Peak memory consumption was 126.6MB. Max. memory is 8.0GB. [2022-01-10 18:17:20,292 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 166.7MB. Free memory was 127.3MB in the beginning and 127.2MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 18:17:20,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 749.90ms. Allocated memory was 166.7MB in the beginning and 210.8MB in the end (delta: 44.0MB). Free memory was 109.2MB in the beginning and 167.1MB in the end (delta: -57.9MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-01-10 18:17:20,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.57ms. Allocated memory is still 210.8MB. Free memory was 167.1MB in the beginning and 163.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-10 18:17:20,292 INFO L158 Benchmark]: Boogie Preprocessor took 107.39ms. Allocated memory is still 210.8MB. Free memory was 163.0MB in the beginning and 160.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 18:17:20,293 INFO L158 Benchmark]: RCFGBuilder took 847.01ms. Allocated memory is still 210.8MB. Free memory was 160.3MB in the beginning and 135.7MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-01-10 18:17:20,293 INFO L158 Benchmark]: IcfgTransformer took 240.34ms. Allocated memory is still 210.8MB. Free memory was 135.7MB in the beginning and 125.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-10 18:17:20,293 INFO L158 Benchmark]: TraceAbstraction took 6721.81ms. Allocated memory was 210.8MB in the beginning and 253.8MB in the end (delta: 43.0MB). Free memory was 125.2MB in the beginning and 193.5MB in the end (delta: -68.2MB). Peak memory consumption was 98.5MB. Max. memory is 8.0GB. [2022-01-10 18:17:20,294 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 166.7MB. Free memory was 127.3MB in the beginning and 127.2MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 749.90ms. Allocated memory was 166.7MB in the beginning and 210.8MB in the end (delta: 44.0MB). Free memory was 109.2MB in the beginning and 167.1MB in the end (delta: -57.9MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 110.57ms. Allocated memory is still 210.8MB. Free memory was 167.1MB in the beginning and 163.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 107.39ms. Allocated memory is still 210.8MB. Free memory was 163.0MB in the beginning and 160.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 847.01ms. Allocated memory is still 210.8MB. Free memory was 160.3MB in the beginning and 135.7MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * IcfgTransformer took 240.34ms. Allocated memory is still 210.8MB. Free memory was 135.7MB in the beginning and 125.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 6721.81ms. Allocated memory was 210.8MB in the beginning and 253.8MB in the end (delta: 43.0MB). Free memory was 125.2MB in the beginning and 193.5MB in the end (delta: -68.2MB). Peak memory consumption was 98.5MB. 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: 327]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L127] int pumpRunning = 0; [L128] int systemActive = 1; [L501] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L824] int waterLevel = 1; [L825] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L801] int retValue_acc ; [L802] int tmp ; [L806] FCALL select_helpers() [L807] FCALL select_features() [L808] CALL, EXPR valid_product() [L944] int retValue_acc ; [L947] retValue_acc = 1 [L948] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L808] RET, EXPR valid_product() [L808] tmp = valid_product() [L810] COND TRUE \read(tmp) [L812] FCALL setup() [L813] CALL runTest() [L792] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L64] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L66] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L72] tmp = __VERIFIER_nondet_int() [L74] COND TRUE \read(tmp) [L76] CALL waterRise() [L842] COND TRUE waterLevel < 2 [L843] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] RET waterRise() [L82] tmp___0 = __VERIFIER_nondet_int() [L84] 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] [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L107] CALL timeShift() [L135] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] COND TRUE \read(systemActive) [L144] CALL processEnvironment() [L190] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L193] COND FALSE !(\read(pumpRunning)) [L208] CALL processEnvironment__wrappee__methaneQuery() [L164] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND TRUE ! pumpRunning [L169] CALL, EXPR isHighWaterLevel() [L304] int retValue_acc ; [L305] int tmp ; [L306] int tmp___0 ; [L310] CALL, EXPR isHighWaterSensorDry() [L904] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L907] COND FALSE !(waterLevel < 2) [L911] retValue_acc = 0 [L912] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L310] RET, EXPR isHighWaterSensorDry() [L310] tmp = isHighWaterSensorDry() [L312] COND FALSE !(\read(tmp)) [L315] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L317] retValue_acc = tmp___0 [L318] 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] [L169] RET, EXPR isHighWaterLevel() [L169] tmp = isHighWaterLevel() [L171] COND TRUE \read(tmp) [L173] CALL activatePump() [L223] int tmp ; [L227] CALL, EXPR isMethaneAlarm() [L248] int retValue_acc ; [L252] CALL, EXPR isMethaneLevelCritical() [L863] int retValue_acc ; [L866] retValue_acc = methaneLevelCritical [L867] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L252] RET, EXPR isMethaneLevelCritical() [L252] retValue_acc = isMethaneLevelCritical() [L254] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L227] RET, EXPR isMethaneAlarm() [L227] tmp = isMethaneAlarm() [L229] COND FALSE !(\read(tmp)) [L233] CALL activatePump__wrappee__highWaterSensor() [L218] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L233] RET activatePump__wrappee__highWaterSensor() [L173] RET activatePump() [L208] RET processEnvironment__wrappee__methaneQuery() [L144] RET processEnvironment() [L150] CALL __utac_acc__Specification4_spec__1() [L700] int tmp ; [L701] int tmp___0 ; [L705] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [\result=-2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L705] RET, EXPR getWaterLevel() [L705] tmp = getWaterLevel() [L707] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L150] RET __utac_acc__Specification4_spec__1() [L107] RET timeShift() [L64] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L66] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L107] CALL timeShift() [L135] COND TRUE \read(pumpRunning) [L137] CALL lowerWaterLevel() [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L137] RET lowerWaterLevel() [L142] COND TRUE \read(systemActive) [L144] CALL processEnvironment() [L190] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L193] COND TRUE \read(pumpRunning) [L195] CALL, EXPR isMethaneAlarm() [L248] int retValue_acc ; [L252] CALL, EXPR isMethaneLevelCritical() [L863] int retValue_acc ; [L866] retValue_acc = methaneLevelCritical [L867] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L252] RET, EXPR isMethaneLevelCritical() [L252] retValue_acc = isMethaneLevelCritical() [L254] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L195] RET, EXPR isMethaneAlarm() [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) [L203] CALL processEnvironment__wrappee__methaneQuery() [L164] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L167] COND FALSE !(! pumpRunning) [L182] FCALL processEnvironment__wrappee__base() [L203] RET processEnvironment__wrappee__methaneQuery() [L144] RET processEnvironment() [L150] CALL __utac_acc__Specification4_spec__1() [L700] int tmp ; [L701] int tmp___0 ; [L705] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L705] RET, EXPR getWaterLevel() [L705] tmp = getWaterLevel() [L707] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L150] RET __utac_acc__Specification4_spec__1() [L107] RET timeShift() [L64] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L66] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L107] CALL timeShift() [L135] COND TRUE \read(pumpRunning) [L137] CALL lowerWaterLevel() [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L137] RET lowerWaterLevel() [L142] COND TRUE \read(systemActive) [L144] CALL processEnvironment() [L190] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L193] COND TRUE \read(pumpRunning) [L195] CALL, EXPR isMethaneAlarm() [L248] int retValue_acc ; [L252] CALL, EXPR isMethaneLevelCritical() [L863] int retValue_acc ; [L866] retValue_acc = methaneLevelCritical [L867] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L252] RET, EXPR isMethaneLevelCritical() [L252] retValue_acc = isMethaneLevelCritical() [L254] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L195] RET, EXPR isMethaneAlarm() [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) [L203] CALL processEnvironment__wrappee__methaneQuery() [L164] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L167] COND FALSE !(! pumpRunning) [L182] FCALL processEnvironment__wrappee__base() [L203] RET processEnvironment__wrappee__methaneQuery() [L144] RET processEnvironment() [L150] CALL __utac_acc__Specification4_spec__1() [L700] int tmp ; [L701] int tmp___0 ; [L705] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L705] RET, EXPR getWaterLevel() [L705] tmp = getWaterLevel() [L707] COND TRUE tmp == 0 [L709] CALL, EXPR isPumpRunning() [L259] int retValue_acc ; [L262] retValue_acc = pumpRunning [L263] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L709] RET, EXPR isPumpRunning() [L709] tmp___0 = isPumpRunning() [L711] COND TRUE \read(tmp___0) [L713] CALL __automaton_fail() [L327] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 327]: 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: 327]: 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, 183 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4719 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4719 mSDsluCounter, 7111 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4693 mSDsCounter, 212 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 666 IncrementalHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 212 mSolverCounterUnsat, 2418 mSDtfsCounter, 666 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 139 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=6, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 2772 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 552 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 514 ConstructedInterpolants, 0 QuantifiedInterpolants, 2972 SizeOfPredicates, 6 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 34/64 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 18:17:20,319 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...