./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/ldv-regression/1_3.i -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 c7604f323f01a3c659629a3446d646b5cd5a69c1 ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 00:55:56,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 00:55:56,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 00:55:57,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 00:55:57,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 00:55:57,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 00:55:57,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 00:55:57,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 00:55:57,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 00:55:57,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 00:55:57,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 00:55:57,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 00:55:57,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 00:55:57,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 00:55:57,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 00:55:57,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 00:55:57,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 00:55:57,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 00:55:57,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 00:55:57,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 00:55:57,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 00:55:57,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 00:55:57,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 00:55:57,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 00:55:57,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 00:55:57,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 00:55:57,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 00:55:57,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 00:55:57,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 00:55:57,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 00:55:57,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 00:55:57,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 00:55:57,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 00:55:57,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 00:55:57,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 00:55:57,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 00:55:57,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 00:55:57,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 00:55:57,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 00:55:57,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 00:55:57,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 00:55:57,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 00:55:57,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 00:55:57,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 00:55:57,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 00:55:57,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 00:55:57,064 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 00:55:57,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 00:55:57,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 00:55:57,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 00:55:57,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 00:55:57,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 00:55:57,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 00:55:57,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 00:55:57,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 00:55:57,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 00:55:57,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 00:55:57,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 00:55:57,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 00:55:57,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 00:55:57,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 00:55:57,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 00:55:57,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 00:55:57,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 00:55:57,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 00:55:57,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 00:55:57,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 00:55:57,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 00:55:57,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 00:55:57,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 00:55:57,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7604f323f01a3c659629a3446d646b5cd5a69c1 [2021-07-05 00:55:57,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 00:55:57,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 00:55:57,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 00:55:57,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 00:55:57,366 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 00:55:57,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/1_3.i [2021-07-05 00:55:57,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0912c168f/dccde5dbd10848d880faf58f575728d0/FLAGf2100505f [2021-07-05 00:55:57,774 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 00:55:57,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/1_3.i [2021-07-05 00:55:57,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0912c168f/dccde5dbd10848d880faf58f575728d0/FLAGf2100505f [2021-07-05 00:55:58,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0912c168f/dccde5dbd10848d880faf58f575728d0 [2021-07-05 00:55:58,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 00:55:58,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 00:55:58,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 00:55:58,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 00:55:58,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 00:55:58,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c9daab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58, skipping insertion in model container [2021-07-05 00:55:58,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 00:55:58,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 00:55:58,319 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-07-05 00:55:58,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 00:55:58,360 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 00:55:58,391 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-07-05 00:55:58,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 00:55:58,409 INFO L208 MainTranslator]: Completed translation [2021-07-05 00:55:58,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58 WrapperNode [2021-07-05 00:55:58,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 00:55:58,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 00:55:58,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 00:55:58,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 00:55:58,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 00:55:58,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 00:55:58,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 00:55:58,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 00:55:58,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 00:55:58,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 00:55:58,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 00:55:58,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 00:55:58,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (1/1) ... [2021-07-05 00:55:58,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 00:55:58,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 00:55:58,493 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) [2021-07-05 00:55:58,523 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 [2021-07-05 00:55:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 00:55:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 00:55:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 00:55:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-05 00:55:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 00:55:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 00:55:58,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-05 00:55:58,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 00:55:58,814 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-07-05 00:55:58,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 12:55:58 BoogieIcfgContainer [2021-07-05 00:55:58,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 00:55:58,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 00:55:58,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 00:55:58,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 00:55:58,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 12:55:58" (1/3) ... [2021-07-05 00:55:58,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131f1b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 12:55:58, skipping insertion in model container [2021-07-05 00:55:58,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 12:55:58" (2/3) ... [2021-07-05 00:55:58,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131f1b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 12:55:58, skipping insertion in model container [2021-07-05 00:55:58,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 12:55:58" (3/3) ... [2021-07-05 00:55:58,820 INFO L111 eAbstractionObserver]: Analyzing ICFG 1_3.i [2021-07-05 00:55:58,824 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 00:55:58,824 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 00:55:58,876 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 00:55:58,880 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 00:55:58,880 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 00:55:58,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 00:55:58,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-05 00:55:58,892 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 00:55:58,892 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-05 00:55:58,893 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 00:55:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 00:55:58,905 INFO L82 PathProgramCache]: Analyzing trace with hash 889476007, now seen corresponding path program 1 times [2021-07-05 00:55:58,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 00:55:58,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065844259] [2021-07-05 00:55:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 00:55:58,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 00:55:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 00:55:59,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:55:59,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:55:59,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:55:59,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 00:55:59,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:55:59,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 00:55:59,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 00:55:59,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 00:55:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 00:55:59,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 00:55:59,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065844259] [2021-07-05 00:55:59,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065844259] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 00:55:59,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 00:55:59,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 00:55:59,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129457703] [2021-07-05 00:55:59,062 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 00:55:59,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 00:55:59,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 00:55:59,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 00:55:59,075 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-07-05 00:55:59,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 00:55:59,126 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-07-05 00:55:59,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 00:55:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-07-05 00:55:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 00:55:59,131 INFO L225 Difference]: With dead ends: 27 [2021-07-05 00:55:59,131 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 00:55:59,134 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 00:55:59,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 00:55:59,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 00:55:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-07-05 00:55:59,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 00:55:59,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-05 00:55:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 00:55:59,151 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 00:55:59,151 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-07-05 00:55:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 00:55:59,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 00:55:59,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 00:55:59,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 00:55:59,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 00:55:59,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 00:55:59,167 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 00:55:59,167 INFO L765 garLoopResultBuilder]: At program point L58(lines 50 59) the Hoare annotation is: true [2021-07-05 00:55:59,168 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-07-05 00:55:59,168 INFO L762 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-07-05 00:55:59,168 INFO L762 garLoopResultBuilder]: For program point L44(lines 44 48) no Hoare annotation was computed. [2021-07-05 00:55:59,168 INFO L762 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2021-07-05 00:55:59,168 INFO L762 garLoopResultBuilder]: For program point L44-1(lines 44 48) no Hoare annotation was computed. [2021-07-05 00:55:59,169 INFO L765 garLoopResultBuilder]: At program point L34(lines 30 35) the Hoare annotation is: true [2021-07-05 00:55:59,169 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 00:55:59,169 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 00:55:59,169 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 00:55:59,170 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-07-05 00:55:59,170 INFO L758 garLoopResultBuilder]: At program point L41(lines 37 42) the Hoare annotation is: (= (select (select |#memory_int| |ULTIMATE.start_getPtr_#res.base|) |ULTIMATE.start_getPtr_#res.offset|) 1) [2021-07-05 00:55:59,170 INFO L762 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-07-05 00:55:59,170 INFO L762 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-07-05 00:55:59,170 INFO L762 garLoopResultBuilder]: For program point L6(lines 1 59) no Hoare annotation was computed. [2021-07-05 00:55:59,170 INFO L762 garLoopResultBuilder]: For program point L6-1(lines 1 59) no Hoare annotation was computed. [2021-07-05 00:55:59,171 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 00:55:59,171 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 00:55:59,174 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/2) [2021-07-05 00:55:59,183 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 00:55:59,185 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 00:55:59,186 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 00:55:59,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 00:55:59,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-05 00:55:59,188 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 00:55:59,188 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 00:55:59,190 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 00:55:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 00:55:59,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1570200632, now seen corresponding path program 1 times [2021-07-05 00:55:59,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 00:55:59,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573046189] [2021-07-05 00:55:59,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 00:55:59,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 00:55:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 00:55:59,221 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 00:55:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 00:55:59,252 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 00:55:59,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 00:55:59,272 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 00:55:59,273 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-05 00:55:59,273 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 00:55:59,274 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (2/2) [2021-07-05 00:55:59,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 12:55:59 BoogieIcfgContainer [2021-07-05 00:55:59,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 00:55:59,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 00:55:59,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 00:55:59,318 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 00:55:59,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 12:55:58" (3/4) ... [2021-07-05 00:55:59,320 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 00:55:59,364 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 00:55:59,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 00:55:59,365 INFO L168 Benchmark]: Toolchain (without parser) took 1150.02 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 34.0 MB in the beginning and 65.4 MB in the end (delta: -31.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 00:55:59,374 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 56.6 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 00:55:59,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.26 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 33.8 MB in the beginning and 68.5 MB in the end (delta: -34.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-07-05 00:55:59,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.11 ms. Allocated memory is still 86.0 MB. Free memory was 68.5 MB in the beginning and 67.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 00:55:59,377 INFO L168 Benchmark]: Boogie Preprocessor took 13.91 ms. Allocated memory is still 86.0 MB. Free memory was 67.0 MB in the beginning and 65.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 00:55:59,378 INFO L168 Benchmark]: RCFGBuilder took 368.26 ms. Allocated memory is still 86.0 MB. Free memory was 65.8 MB in the beginning and 52.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-05 00:55:59,378 INFO L168 Benchmark]: TraceAbstraction took 497.39 ms. Allocated memory is still 86.0 MB. Free memory was 51.7 MB in the beginning and 41.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-07-05 00:55:59,378 INFO L168 Benchmark]: Witness Printer took 46.79 ms. Allocated memory is still 86.0 MB. Free memory was 67.5 MB in the beginning and 65.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 00:55:59,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 56.6 MB. Free memory was 36.5 MB in the beginning and 36.4 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 194.26 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 33.8 MB in the beginning and 68.5 MB in the end (delta: -34.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.11 ms. Allocated memory is still 86.0 MB. Free memory was 68.5 MB in the beginning and 67.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.91 ms. Allocated memory is still 86.0 MB. Free memory was 67.0 MB in the beginning and 65.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 368.26 ms. Allocated memory is still 86.0 MB. Free memory was 65.8 MB in the beginning and 52.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 497.39 ms. Allocated memory is still 86.0 MB. Free memory was 51.7 MB in the beginning and 41.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Witness Printer took 46.79 ms. Allocated memory is still 86.0 MB. Free memory was 67.5 MB in the beginning and 65.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] rr * ptr1 = 0; [L32] rr * r = (rr *)malloc(sizeof *r); [L33] r -> state = 0 [L34] return r; [L39] rr * r = getrr(); [L40] r -> state = 1 [L41] return r; [L53] ptr1 = getPtr() [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L47] ptr -> state = 2 [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 299.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.6ms, AutomataDifference: 69.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 12.0ms, InitialAbstractionConstructionTime: 6.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 13 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 4.9ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 8.7ms SsaConstructionTime, 31.4ms SatisfiabilityAnalysisTime, 69.0ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 90.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5ms SsaConstructionTime, 20.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: unknown-#memory_int-unknown[\result][\result] == 1 RESULT: Ultimate proved your program to be incorrect! [2021-07-05 00:55:59,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...