/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/recursive/Addition02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:09:11,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:09:11,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:09:12,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:09:12,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:09:12,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:09:12,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:09:12,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:09:12,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:09:12,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:09:12,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:09:12,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:09:12,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:09:12,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:09:12,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:09:12,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:09:12,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:09:12,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:09:12,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:09:12,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:09:12,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:09:12,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:09:12,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:09:12,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:09:12,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:09:12,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:09:12,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:09:12,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:09:12,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:09:12,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:09:12,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:09:12,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:09:12,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:09:12,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:09:12,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:09:12,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:09:12,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:09:12,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:09:12,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:09:12,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:09:12,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:09:12,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:09:12,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:09:12,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:09:12,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:09:12,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:09:12,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:09:12,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:09:12,062 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:09:12,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:09:12,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:09:12,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:09:12,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:09:12,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:09:12,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:09:12,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:09:12,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:09:12,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:09:12,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:09:12,065 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:09:12,065 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:09:12,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:09:12,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:09:12,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:09:12,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:09:12,264 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:09:12,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition02.c [2022-01-11 00:09:12,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c6c94c1/b21723f73ba441b49117850d1f80a3dc/FLAG8761c35f7 [2022-01-11 00:09:12,684 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:09:12,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Addition02.c [2022-01-11 00:09:12,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c6c94c1/b21723f73ba441b49117850d1f80a3dc/FLAG8761c35f7 [2022-01-11 00:09:12,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c6c94c1/b21723f73ba441b49117850d1f80a3dc [2022-01-11 00:09:12,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:09:12,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:09:12,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:09:12,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:09:12,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:09:12,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43cd369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12, skipping insertion in model container [2022-01-11 00:09:12,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:09:12,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:09:12,841 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/Addition02.c[1124,1137] [2022-01-11 00:09:12,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:09:12,862 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:09:12,872 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/Addition02.c[1124,1137] [2022-01-11 00:09:12,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:09:12,879 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:09:12,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12 WrapperNode [2022-01-11 00:09:12,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:09:12,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:09:12,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:09:12,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:09:12,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,897 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-01-11 00:09:12,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:09:12,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:09:12,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:09:12,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:09:12,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:09:12,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:09:12,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:09:12,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:09:12,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (1/1) ... [2022-01-11 00:09:12,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:09:12,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:09:12,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 00:09:12,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 00:09:12,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:09:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:09:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:09:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:09:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-01-11 00:09:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-01-11 00:09:13,003 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:09:13,004 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:09:13,087 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:09:13,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:09:13,091 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 00:09:13,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:09:13 BoogieIcfgContainer [2022-01-11 00:09:13,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:09:13,093 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:09:13,093 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:09:13,094 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:09:13,096 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:09:13" (1/1) ... [2022-01-11 00:09:13,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:09:13 BasicIcfg [2022-01-11 00:09:13,168 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:09:13,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:09:13,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:09:13,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:09:13,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:09:12" (1/4) ... [2022-01-11 00:09:13,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3aad7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:09:13, skipping insertion in model container [2022-01-11 00:09:13,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:09:12" (2/4) ... [2022-01-11 00:09:13,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3aad7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:09:13, skipping insertion in model container [2022-01-11 00:09:13,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:09:13" (3/4) ... [2022-01-11 00:09:13,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3aad7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:09:13, skipping insertion in model container [2022-01-11 00:09:13,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:09:13" (4/4) ... [2022-01-11 00:09:13,173 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02.cTransformedIcfg [2022-01-11 00:09:13,176 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:09:13,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 00:09:13,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:09:13,206 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 00:09:13,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 00:09:13,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-11 00:09:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-11 00:09:13,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:09:13,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:09:13,220 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:09:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:09:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2034276413, now seen corresponding path program 1 times [2022-01-11 00:09:13,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:09:13,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026216810] [2022-01-11 00:09:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:09:13,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:09:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:09:13,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-11 00:09:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:09:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:09:13,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:09:13,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026216810] [2022-01-11 00:09:13,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026216810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:09:13,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:09:13,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 00:09:13,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722479656] [2022-01-11 00:09:13,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:09:13,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 00:09:13,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:09:13,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 00:09:13,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:09:13,742 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-01-11 00:09:13,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:09:13,921 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-01-11 00:09:13,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 00:09:13,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 12 [2022-01-11 00:09:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:09:13,933 INFO L225 Difference]: With dead ends: 37 [2022-01-11 00:09:13,933 INFO L226 Difference]: Without dead ends: 21 [2022-01-11 00:09:13,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-11 00:09:13,938 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:09:13,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 73 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:09:13,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-01-11 00:09:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-01-11 00:09:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-01-11 00:09:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-01-11 00:09:13,971 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2022-01-11 00:09:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:09:13,972 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-01-11 00:09:13,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-01-11 00:09:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-01-11 00:09:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-11 00:09:13,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:09:13,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:09:13,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:09:13,974 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:09:13,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:09:13,975 INFO L85 PathProgramCache]: Analyzing trace with hash -154351527, now seen corresponding path program 1 times [2022-01-11 00:09:13,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:09:13,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156293979] [2022-01-11 00:09:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:09:13,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:09:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:09:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-11 00:09:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:09:14,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:09:14,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:09:14,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156293979] [2022-01-11 00:09:14,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156293979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:09:14,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:09:14,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:09:14,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306912225] [2022-01-11 00:09:14,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:09:14,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:09:14,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:09:14,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:09:14,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:09:14,120 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-01-11 00:09:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:09:14,143 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-01-11 00:09:14,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:09:14,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 14 [2022-01-11 00:09:14,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:09:14,144 INFO L225 Difference]: With dead ends: 31 [2022-01-11 00:09:14,144 INFO L226 Difference]: Without dead ends: 23 [2022-01-11 00:09:14,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:09:14,148 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:09:14,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 35 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:09:14,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-11 00:09:14,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-01-11 00:09:14,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-01-11 00:09:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-01-11 00:09:14,160 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2022-01-11 00:09:14,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:09:14,162 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-01-11 00:09:14,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-01-11 00:09:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-01-11 00:09:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 00:09:14,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:09:14,167 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:09:14,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:09:14,168 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:09:14,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:09:14,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1289354868, now seen corresponding path program 1 times [2022-01-11 00:09:14,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:09:14,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697934022] [2022-01-11 00:09:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:09:14,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:09:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:09:14,201 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 00:09:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:09:14,252 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 00:09:14,253 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 00:09:14,254 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 00:09:14,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:09:14,257 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-11 00:09:14,259 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 00:09:14,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:09:14 BasicIcfg [2022-01-11 00:09:14,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 00:09:14,298 INFO L158 Benchmark]: Toolchain (without parser) took 1600.16ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 157.6MB in the beginning and 212.1MB in the end (delta: -54.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:09:14,299 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory was 173.6MB in the beginning and 173.6MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:09:14,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.60ms. Allocated memory is still 209.7MB. Free memory was 157.4MB in the beginning and 186.1MB in the end (delta: -28.7MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-01-11 00:09:14,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.21ms. Allocated memory is still 209.7MB. Free memory was 186.1MB in the beginning and 184.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 00:09:14,302 INFO L158 Benchmark]: Boogie Preprocessor took 10.43ms. Allocated memory is still 209.7MB. Free memory was 184.6MB in the beginning and 183.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 00:09:14,302 INFO L158 Benchmark]: RCFGBuilder took 183.78ms. Allocated memory is still 209.7MB. Free memory was 183.6MB in the beginning and 174.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-11 00:09:14,303 INFO L158 Benchmark]: IcfgTransformer took 74.63ms. Allocated memory is still 209.7MB. Free memory was 174.2MB in the beginning and 170.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:09:14,303 INFO L158 Benchmark]: TraceAbstraction took 1129.08ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 170.0MB in the beginning and 212.1MB in the end (delta: -42.1MB). Peak memory consumption was 668.5kB. Max. memory is 8.0GB. [2022-01-11 00:09:14,304 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 209.7MB. Free memory was 173.6MB in the beginning and 173.6MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.60ms. Allocated memory is still 209.7MB. Free memory was 157.4MB in the beginning and 186.1MB in the end (delta: -28.7MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.21ms. Allocated memory is still 209.7MB. Free memory was 186.1MB in the beginning and 184.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.43ms. Allocated memory is still 209.7MB. Free memory was 184.6MB in the beginning and 183.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 183.78ms. Allocated memory is still 209.7MB. Free memory was 183.6MB in the beginning and 174.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 74.63ms. Allocated memory is still 209.7MB. Free memory was 174.2MB in the beginning and 170.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1129.08ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 170.0MB in the beginning and 212.1MB in the end (delta: -42.1MB). Peak memory consumption was 668.5kB. 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: 45]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m < 0 || m > 1073741823) [L35] int n = __VERIFIER_nondet_int(); [L36] COND FALSE !(n < 0 || n > 1073741823) VAL [m=0, n=1] [L41] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L20] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L16] COND TRUE n == 0 [L17] return m; VAL [\old(m)=1, \old(n)=0, \result=-1, m=1, n=0] [L20] RET, EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, addition(m+1, n-1)=-1, m=0, n=1] [L20] return addition(m+1, n-1); [L41] RET, EXPR addition(m,n) VAL [addition(m,n)=-1, m=0, n=1] [L41] int result = addition(m,n); [L42] COND FALSE !(result == m - n) VAL [m=0, n=1, result=1] [L45] reach_error() VAL [m=0, n=1, result=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 38 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-11 00:09:14,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...