/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/recursive-simple/id_i5_o5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:24:17,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:24:17,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:24:17,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:24:17,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:24:17,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:24:17,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:24:17,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:24:17,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:24:17,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:24:17,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:24:17,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:24:17,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:24:17,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:24:17,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:24:17,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:24:17,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:24:17,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:24:17,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:24:17,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:24:17,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:24:17,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:24:17,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:24:17,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:24:17,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:24:17,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:24:17,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:24:17,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:24:17,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:24:17,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:24:17,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:24:17,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:24:17,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:24:17,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:24:17,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:24:17,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:24:17,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:24:17,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:24:17,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:24:17,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:24:17,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:24:17,229 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 18:24:17,261 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:24:17,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:24:17,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:24:17,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:24:17,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:24:17,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:24:17,262 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:24:17,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:24:17,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:24:17,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:24:17,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:24:17,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:24:17,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:24:17,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:24:17,268 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:24:17,268 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:24:17,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:24:17,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:24:17,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:24:17,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:24:17,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:24:17,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:24:17,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:24:17,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:24:17,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:24:17,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:24:17,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:24:17,270 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:24:17,270 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:24:17,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:24:17,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:24:17,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:24:17,272 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:24:17,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:24:17,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:24:17,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:24:17,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:24:17,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:24:17,483 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:24:17,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i5_o5-1.c [2022-01-10 18:24:17,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f767ae5/99777bc1f4b04c2baec822972493e814/FLAG59e176558 [2022-01-10 18:24:17,904 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:24:17,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_i5_o5-1.c [2022-01-10 18:24:17,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f767ae5/99777bc1f4b04c2baec822972493e814/FLAG59e176558 [2022-01-10 18:24:17,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f767ae5/99777bc1f4b04c2baec822972493e814 [2022-01-10 18:24:17,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:24:17,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:24:17,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:24:17,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:24:17,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:24:17,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:24:17" (1/1) ... [2022-01-10 18:24:17,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7402e2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:17, skipping insertion in model container [2022-01-10 18:24:17,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:24:17" (1/1) ... [2022-01-10 18:24:17,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:24:17,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:24:18,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_i5_o5-1.c[450,463] [2022-01-10 18:24:18,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:24:18,103 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:24:18,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_i5_o5-1.c[450,463] [2022-01-10 18:24:18,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:24:18,125 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:24:18,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18 WrapperNode [2022-01-10 18:24:18,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:24:18,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:24:18,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:24:18,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:24:18,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,150 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-01-10 18:24:18,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:24:18,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:24:18,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:24:18,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:24:18,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:24:18,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:24:18,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:24:18,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:24:18,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:24:18,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:24:18,195 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 18:24:18,199 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 18:24:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:24:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:24:18,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:24:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:24:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-01-10 18:24:18,226 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-01-10 18:24:18,278 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:24:18,280 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:24:18,337 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:24:18,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:24:18,342 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 18:24:18,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:24:18 BoogieIcfgContainer [2022-01-10 18:24:18,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:24:18,344 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:24:18,344 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:24:18,345 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:24:18,347 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:24:18" (1/1) ... [2022-01-10 18:24:18,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:24:18 BasicIcfg [2022-01-10 18:24:18,394 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:24:18,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:24:18,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:24:18,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:24:18,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:24:17" (1/4) ... [2022-01-10 18:24:18,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb77bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:24:18, skipping insertion in model container [2022-01-10 18:24:18,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:24:18" (2/4) ... [2022-01-10 18:24:18,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb77bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:24:18, skipping insertion in model container [2022-01-10 18:24:18,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:24:18" (3/4) ... [2022-01-10 18:24:18,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb77bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:24:18, skipping insertion in model container [2022-01-10 18:24:18,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:24:18" (4/4) ... [2022-01-10 18:24:18,401 INFO L111 eAbstractionObserver]: Analyzing ICFG id_i5_o5-1.cTransformedIcfg [2022-01-10 18:24:18,405 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:24:18,405 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 18:24:18,458 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:24:18,463 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 18:24:18,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 18:24:18,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 18:24:18,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 18:24:18,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:24:18,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:24:18,479 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:24:18,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:24:18,483 INFO L85 PathProgramCache]: Analyzing trace with hash 534385216, now seen corresponding path program 1 times [2022-01-10 18:24:18,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:24:18,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604852348] [2022-01-10 18:24:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:24:18,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:24:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 18:24:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:18,789 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 18:24:18,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:24:18,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604852348] [2022-01-10 18:24:18,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604852348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:24:18,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:24:18,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:24:18,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837353526] [2022-01-10 18:24:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:24:18,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:24:18,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:24:18,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:24:18,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:24:18,826 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 18:24:18,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:24:18,896 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-01-10 18:24:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:24:18,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-01-10 18:24:18,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:24:18,906 INFO L225 Difference]: With dead ends: 25 [2022-01-10 18:24:18,906 INFO L226 Difference]: Without dead ends: 15 [2022-01-10 18:24:18,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:24:18,925 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:24:18,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:24:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-01-10 18:24:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-01-10 18:24:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 18:24:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-01-10 18:24:18,964 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-01-10 18:24:18,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:24:18,965 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-01-10 18:24:18,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 18:24:18,965 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-01-10 18:24:18,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 18:24:18,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:24:18,967 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:24:18,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:24:18,968 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:24:18,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:24:18,969 INFO L85 PathProgramCache]: Analyzing trace with hash 38585541, now seen corresponding path program 1 times [2022-01-10 18:24:18,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:24:18,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414455432] [2022-01-10 18:24:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:24:18,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:24:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:19,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 18:24:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 18:24:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 18:24:19,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:24:19,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414455432] [2022-01-10 18:24:19,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414455432] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:24:19,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167693802] [2022-01-10 18:24:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:24:19,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:24:19,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:24:19,248 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 18:24:19,249 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 18:24:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:19,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-10 18:24:19,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:24:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 18:24:19,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:24:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 18:24:19,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167693802] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:24:19,784 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:24:19,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-01-10 18:24:19,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349899701] [2022-01-10 18:24:19,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:24:19,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-10 18:24:19,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:24:19,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-10 18:24:19,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-01-10 18:24:19,789 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 13 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2022-01-10 18:24:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:24:20,117 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-01-10 18:24:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:24:20,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.6875) internal successors, (27), 13 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) Word has length 16 [2022-01-10 18:24:20,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:24:20,119 INFO L225 Difference]: With dead ends: 27 [2022-01-10 18:24:20,119 INFO L226 Difference]: Without dead ends: 21 [2022-01-10 18:24:20,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2022-01-10 18:24:20,120 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:24:20,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 78 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:24:20,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-01-10 18:24:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-01-10 18:24:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 18:24:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-01-10 18:24:20,126 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2022-01-10 18:24:20,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:24:20,126 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-01-10 18:24:20,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.6875) internal successors, (27), 13 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2022-01-10 18:24:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-01-10 18:24:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 18:24:20,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:24:20,127 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:24:20,155 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 18:24:20,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:24:20,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:24:20,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:24:20,351 INFO L85 PathProgramCache]: Analyzing trace with hash -278563547, now seen corresponding path program 2 times [2022-01-10 18:24:20,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:24:20,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865796788] [2022-01-10 18:24:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:24:20,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:24:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:20,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 18:24:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:20,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 18:24:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 18:24:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-10 18:24:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:24:20,602 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-10 18:24:20,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:24:20,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865796788] [2022-01-10 18:24:20,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865796788] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:24:20,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391905814] [2022-01-10 18:24:20,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 18:24:20,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:24:20,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:24:20,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:24:20,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 18:24:20,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 18:24:20,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 18:24:20,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-10 18:24:20,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:24:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-10 18:24:21,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:24:22,320 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-10 18:24:22,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391905814] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:24:22,321 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:24:22,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 27 [2022-01-10 18:24:22,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462950746] [2022-01-10 18:24:22,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:24:22,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-10 18:24:22,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:24:22,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-10 18:24:22,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2022-01-10 18:24:22,323 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 27 states, 26 states have (on average 1.5) internal successors, (39), 19 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 12 states have return successors, (12), 12 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 18:24:22,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:24:22,964 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-01-10 18:24:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 18:24:22,965 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.5) internal successors, (39), 19 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 12 states have return successors, (12), 12 states have call predecessors, (12), 3 states have call successors, (12) Word has length 28 [2022-01-10 18:24:22,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:24:22,966 INFO L225 Difference]: With dead ends: 39 [2022-01-10 18:24:22,966 INFO L226 Difference]: Without dead ends: 33 [2022-01-10 18:24:22,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=210, Invalid=1596, Unknown=0, NotChecked=0, Total=1806 [2022-01-10 18:24:22,968 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:24:22,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 170 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 171 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2022-01-10 18:24:22,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-01-10 18:24:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-01-10 18:24:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (10), 8 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-10 18:24:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-01-10 18:24:22,975 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 28 [2022-01-10 18:24:22,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:24:22,975 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-01-10 18:24:22,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.5) internal successors, (39), 19 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 12 states have return successors, (12), 12 states have call predecessors, (12), 3 states have call successors, (12) [2022-01-10 18:24:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-01-10 18:24:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 18:24:22,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:24:22,977 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:24:23,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 18:24:23,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 18:24:23,204 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:24:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:24:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash -10048123, now seen corresponding path program 3 times [2022-01-10 18:24:23,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:24:23,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521108531] [2022-01-10 18:24:23,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:24:23,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:24:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:24:23,226 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 18:24:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 18:24:23,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 18:24:23,257 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 18:24:23,258 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 18:24:23,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:24:23,262 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1] [2022-01-10 18:24:23,264 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 18:24:23,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:24:23 BasicIcfg [2022-01-10 18:24:23,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 18:24:23,301 INFO L158 Benchmark]: Toolchain (without parser) took 5378.35ms. Allocated memory was 198.2MB in the beginning and 270.5MB in the end (delta: 72.4MB). Free memory was 140.9MB in the beginning and 184.9MB in the end (delta: -44.1MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2022-01-10 18:24:23,302 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 18:24:23,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.17ms. Allocated memory was 198.2MB in the beginning and 270.5MB in the end (delta: 72.4MB). Free memory was 140.7MB in the beginning and 241.9MB in the end (delta: -101.2MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. [2022-01-10 18:24:23,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.98ms. Allocated memory is still 270.5MB. Free memory was 241.9MB in the beginning and 240.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 18:24:23,303 INFO L158 Benchmark]: Boogie Preprocessor took 14.43ms. Allocated memory is still 270.5MB. Free memory was 240.3MB in the beginning and 239.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 18:24:23,304 INFO L158 Benchmark]: RCFGBuilder took 177.67ms. Allocated memory is still 270.5MB. Free memory was 239.3MB in the beginning and 229.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 18:24:23,304 INFO L158 Benchmark]: IcfgTransformer took 50.04ms. Allocated memory is still 270.5MB. Free memory was 229.3MB in the beginning and 226.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 18:24:23,304 INFO L158 Benchmark]: TraceAbstraction took 4904.73ms. Allocated memory is still 270.5MB. Free memory was 226.2MB in the beginning and 184.9MB in the end (delta: 41.2MB). Peak memory consumption was 41.2MB. Max. memory is 8.0GB. [2022-01-10 18:24:23,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 202.17ms. Allocated memory was 198.2MB in the beginning and 270.5MB in the end (delta: 72.4MB). Free memory was 140.7MB in the beginning and 241.9MB in the end (delta: -101.2MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.98ms. Allocated memory is still 270.5MB. Free memory was 241.9MB in the beginning and 240.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.43ms. Allocated memory is still 270.5MB. Free memory was 240.3MB in the beginning and 239.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 177.67ms. Allocated memory is still 270.5MB. Free memory was 239.3MB in the beginning and 229.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 50.04ms. Allocated memory is still 270.5MB. Free memory was 229.3MB in the beginning and 226.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 4904.73ms. Allocated memory is still 270.5MB. Free memory was 226.2MB in the beginning and 184.9MB in the end (delta: 41.2MB). Peak memory consumption was 41.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] int input = 5; VAL [input=5] [L13] CALL, EXPR id(input) VAL [\old(x)=5] [L7] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L8] CALL, EXPR id(x-1) VAL [\old(x)=4] [L7] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L8] CALL, EXPR id(x-1) VAL [\old(x)=3] [L7] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L8] CALL, EXPR id(x-1) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id(x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id(x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0, x=0] [L8] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=-1, x=2] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=-2, x=3] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=4, id(x-1)=-1, x=4] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=5, id(x-1)=-4, x=5] [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) VAL [id(input)=-3, input=5] [L13] int result = id(input); [L14] COND TRUE result == 5 VAL [input=5, result=5] [L15] reach_error() VAL [input=5, result=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 284 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 34 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 135 ConstructedInterpolants, 7 QuantifiedInterpolants, 1147 SizeOfPredicates, 2 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 47/102 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 18:24:23,323 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...