./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/eqn4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/eqn4f.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43c1de0381eac57fc6f4c99677f9636747c4cd8593c98dc51f3f286f262ef0fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 18:59:00,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 18:59:00,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 18:59:00,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 18:59:00,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 18:59:00,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 18:59:00,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 18:59:00,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 18:59:00,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 18:59:00,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 18:59:00,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 18:59:00,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 18:59:00,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 18:59:00,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 18:59:00,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 18:59:00,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 18:59:00,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 18:59:00,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 18:59:00,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 18:59:00,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 18:59:00,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 18:59:00,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 18:59:00,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 18:59:00,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 18:59:00,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 18:59:00,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 18:59:00,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 18:59:00,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 18:59:00,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 18:59:00,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 18:59:00,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 18:59:00,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 18:59:00,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 18:59:00,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 18:59:00,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 18:59:00,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 18:59:00,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 18:59:00,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 18:59:00,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 18:59:00,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 18:59:00,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 18:59:00,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 18:59:00,172 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 18:59:00,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 18:59:00,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 18:59:00,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 18:59:00,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 18:59:00,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 18:59:00,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 18:59:00,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 18:59:00,175 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 18:59:00,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 18:59:00,176 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 18:59:00,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 18:59:00,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 18:59:00,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 18:59:00,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 18:59:00,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 18:59:00,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 18:59:00,178 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 18:59:00,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 18:59:00,178 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 18:59:00,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 18:59:00,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 18:59:00,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 18:59:00,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 18:59:00,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 18:59:00,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 18:59:00,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 18:59:00,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 18:59:00,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 18:59:00,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 18:59:00,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 18:59:00,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 18:59:00,187 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 18:59:00,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 18:59:00,188 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 18:59:00,188 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c1de0381eac57fc6f4c99677f9636747c4cd8593c98dc51f3f286f262ef0fa [2023-02-15 18:59:00,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 18:59:00,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 18:59:00,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 18:59:00,446 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 18:59:00,446 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 18:59:00,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/eqn4f.c [2023-02-15 18:59:01,494 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 18:59:01,686 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 18:59:01,687 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn4f.c [2023-02-15 18:59:01,694 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede19aea6/6e46f6a8742c4916b1bcdc62a02a7953/FLAG20103da13 [2023-02-15 18:59:01,705 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ede19aea6/6e46f6a8742c4916b1bcdc62a02a7953 [2023-02-15 18:59:01,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 18:59:01,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 18:59:01,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 18:59:01,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 18:59:01,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 18:59:01,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed6014d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01, skipping insertion in model container [2023-02-15 18:59:01,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 18:59:01,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 18:59:01,848 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn4f.c[588,601] [2023-02-15 18:59:01,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 18:59:01,869 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 18:59:01,880 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn4f.c[588,601] [2023-02-15 18:59:01,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 18:59:01,896 INFO L208 MainTranslator]: Completed translation [2023-02-15 18:59:01,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01 WrapperNode [2023-02-15 18:59:01,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 18:59:01,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 18:59:01,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 18:59:01,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 18:59:01,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,920 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2023-02-15 18:59:01,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 18:59:01,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 18:59:01,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 18:59:01,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 18:59:01,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 18:59:01,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 18:59:01,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 18:59:01,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 18:59:01,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (1/1) ... [2023-02-15 18:59:01,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 18:59:01,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:59:01,978 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) [2023-02-15 18:59:01,980 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 [2023-02-15 18:59:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 18:59:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 18:59:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 18:59:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 18:59:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 18:59:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 18:59:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 18:59:02,083 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 18:59:02,085 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 18:59:02,306 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 18:59:02,317 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 18:59:02,317 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 18:59:02,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:59:02 BoogieIcfgContainer [2023-02-15 18:59:02,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 18:59:02,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 18:59:02,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 18:59:02,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 18:59:02,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 06:59:01" (1/3) ... [2023-02-15 18:59:02,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a664aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:59:02, skipping insertion in model container [2023-02-15 18:59:02,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:59:01" (2/3) ... [2023-02-15 18:59:02,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a664aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:59:02, skipping insertion in model container [2023-02-15 18:59:02,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:59:02" (3/3) ... [2023-02-15 18:59:02,325 INFO L112 eAbstractionObserver]: Analyzing ICFG eqn4f.c [2023-02-15 18:59:02,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 18:59:02,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 18:59:02,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 18:59:02,425 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76fa3cca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 18:59:02,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 18:59:02,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 18:59:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 18:59:02,432 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:59:02,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:59:02,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:59:02,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:59:02,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2023-02-15 18:59:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:59:02,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350053401] [2023-02-15 18:59:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:59:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:59:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:59:02,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:59:02,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350053401] [2023-02-15 18:59:02,583 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-15 18:59:02,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92069806] [2023-02-15 18:59:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:59:02,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:59:02,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:59:02,587 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) [2023-02-15 18:59:02,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 18:59:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:59:02,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 18:59:02,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:59:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 18:59:02,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 18:59:02,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92069806] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 18:59:02,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 18:59:02,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 18:59:02,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671989261] [2023-02-15 18:59:02,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 18:59:02,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 18:59:02,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:59:02,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 18:59:02,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 18:59:02,793 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 18:59:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:59:02,804 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2023-02-15 18:59:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 18:59:02,806 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 18:59:02,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:59:02,812 INFO L225 Difference]: With dead ends: 38 [2023-02-15 18:59:02,812 INFO L226 Difference]: Without dead ends: 17 [2023-02-15 18:59:02,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 18:59:02,818 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 18:59:02,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 18:59:02,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-15 18:59:02,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-15 18:59:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 18:59:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-02-15 18:59:02,845 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2023-02-15 18:59:02,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:59:02,846 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-02-15 18:59:02,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 18:59:02,847 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-02-15 18:59:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 18:59:02,847 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:59:02,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:59:02,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 18:59:03,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-15 18:59:03,054 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:59:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:59:03,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2023-02-15 18:59:03,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:59:03,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451263404] [2023-02-15 18:59:03,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:59:03,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:59:03,096 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:59:03,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414895903] [2023-02-15 18:59:03,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:59:03,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:59:03,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:59:03,098 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) [2023-02-15 18:59:03,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 18:59:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 18:59:03,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 18:59:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 18:59:03,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 18:59:03,183 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 18:59:03,184 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 18:59:03,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 18:59:03,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-15 18:59:03,394 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-15 18:59:03,396 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 18:59:03,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 06:59:03 BoogieIcfgContainer [2023-02-15 18:59:03,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 18:59:03,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 18:59:03,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 18:59:03,418 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 18:59:03,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:59:02" (3/4) ... [2023-02-15 18:59:03,421 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 18:59:03,452 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 18:59:03,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 18:59:03,453 INFO L158 Benchmark]: Toolchain (without parser) took 1744.96ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 75.7MB in the end (delta: 8.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-02-15 18:59:03,454 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 18:59:03,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.55ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 73.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 18:59:03,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.50ms. Allocated memory is still 125.8MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 18:59:03,455 INFO L158 Benchmark]: Boogie Preprocessor took 18.72ms. Allocated memory is still 125.8MB. Free memory was 72.2MB in the beginning and 71.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 18:59:03,456 INFO L158 Benchmark]: RCFGBuilder took 377.66ms. Allocated memory is still 125.8MB. Free memory was 70.6MB in the beginning and 58.8MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 18:59:03,456 INFO L158 Benchmark]: TraceAbstraction took 1097.10ms. Allocated memory is still 125.8MB. Free memory was 58.4MB in the beginning and 77.8MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 18:59:03,456 INFO L158 Benchmark]: Witness Printer took 34.79ms. Allocated memory is still 125.8MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 18:59:03,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.55ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 73.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.50ms. Allocated memory is still 125.8MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.72ms. Allocated memory is still 125.8MB. Free memory was 72.2MB in the beginning and 71.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.66ms. Allocated memory is still 125.8MB. Free memory was 70.6MB in the beginning and 58.8MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1097.10ms. Allocated memory is still 125.8MB. Free memory was 58.4MB in the beginning and 77.8MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.79ms. Allocated memory is still 125.8MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 8 [L32] b[0] = 0 [L33] i=1 VAL [a={-1:0}, b={-2:0}, i=1, N=1] [L33] COND FALSE !(i