./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a06687718ac0cd281e66000f698ec14d3c3893e6 ............................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a06687718ac0cd281e66000f698ec14d3c3893e6 ................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-26 23:08:53,547 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:08:53,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:08:53,558 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:08:53,558 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:08:53,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:08:53,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:08:53,562 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:08:53,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:08:53,563 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:08:53,564 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:08:53,564 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:08:53,565 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:08:53,566 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:08:53,566 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:08:53,567 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:08:53,568 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:08:53,570 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:08:53,571 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:08:53,573 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:08:53,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:08:53,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:08:53,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:08:53,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:08:53,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:08:53,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:08:53,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:08:53,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:08:53,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:08:53,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:08:53,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:08:53,582 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:08:53,582 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:08:53,582 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:08:53,583 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:08:53,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:08:53,584 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 23:08:53,595 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:08:53,596 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:08:53,596 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:08:53,597 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:08:53,597 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:08:53,597 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:08:53,597 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:08:53,598 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:08:53,598 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:08:53,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:08:53,598 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:08:53,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:08:53,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:08:53,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:08:53,599 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:08:53,599 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:08:53,599 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:08:53,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:08:53,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:08:53,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:08:53,599 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:08:53,600 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:08:53,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:08:53,602 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:08:53,602 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:08:53,602 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:08:53,602 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 23:08:53,602 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:08:53,603 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:08:53,603 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer 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(__VERIFIER_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 -> a06687718ac0cd281e66000f698ec14d3c3893e6 [2018-10-26 23:08:53,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:08:53,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:08:53,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:08:53,645 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:08:53,645 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:08:53,646 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-10-26 23:08:53,699 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/b0ecce9f0/91060d39f9c749c6b3fb7498324a2290/FLAG6060beda0 [2018-10-26 23:08:54,088 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:08:54,089 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-10-26 23:08:54,095 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/b0ecce9f0/91060d39f9c749c6b3fb7498324a2290/FLAG6060beda0 [2018-10-26 23:08:54,106 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/b0ecce9f0/91060d39f9c749c6b3fb7498324a2290 [2018-10-26 23:08:54,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:08:54,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:08:54,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:08:54,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:08:54,113 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:08:54,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:08:54" (1/1) ... [2018-10-26 23:08:54,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a45ceac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:54, skipping insertion in model container [2018-10-26 23:08:54,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:08:54" (1/1) ... [2018-10-26 23:08:54,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:08:54,141 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:08:54,306 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:08:54,314 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:08:54,329 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueInteger(TypeSizes.java:391) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:335) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.extractSizeTValue(TypeSizeAndOffsetComputer.java:317) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValue_Array(TypeSizeAndOffsetComputer.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:200) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValue_Array(TypeSizeAndOffsetComputer.java:228) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:200) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructBytesizeExpression(TypeSizeAndOffsetComputer.java:120) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.calculateSizeOf(MemoryHandler.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.getMallocCall(MemoryHandler.java:514) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1876) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1011) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:318) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:364) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:287) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:537) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:228) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-26 23:08:54,338 INFO L168 Benchmark]: Toolchain (without parser) took 229.75 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:08:54,340 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:08:54,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.94 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:08:54,344 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 227.94 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:08:55,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:08:55,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:08:55,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:08:55,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:08:55,974 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:08:55,975 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:08:55,976 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:08:55,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:08:55,978 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:08:55,979 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:08:55,979 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:08:55,981 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:08:55,982 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:08:55,983 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:08:55,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:08:55,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:08:55,986 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:08:55,987 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:08:55,989 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:08:55,990 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:08:55,991 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:08:55,993 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:08:55,993 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:08:55,993 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:08:55,994 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:08:55,995 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:08:55,995 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:08:55,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:08:55,997 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:08:55,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:08:55,998 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:08:55,998 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:08:55,998 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:08:56,000 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:08:56,000 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:08:56,001 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-26 23:08:56,012 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:08:56,012 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:08:56,013 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:08:56,013 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:08:56,014 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:08:56,014 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:08:56,014 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:08:56,014 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:08:56,014 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:08:56,015 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:08:56,015 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:08:56,015 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:08:56,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:08:56,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:08:56,015 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 23:08:56,015 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 23:08:56,016 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:08:56,017 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:08:56,017 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:08:56,018 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:08:56,018 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:08:56,018 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:08:56,018 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:08:56,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:08:56,018 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:08:56,019 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:08:56,019 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:08:56,019 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-26 23:08:56,019 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:08:56,019 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 23:08:56,019 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 23:08:56,019 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer 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(__VERIFIER_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 -> a06687718ac0cd281e66000f698ec14d3c3893e6 [2018-10-26 23:08:56,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:08:56,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:08:56,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:08:56,070 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:08:56,070 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:08:56,071 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/../../sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-10-26 23:08:56,123 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/26e062198/3988b39b86894ffbad15bd62d9fcdb39/FLAG33ad7df80 [2018-10-26 23:08:56,476 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:08:56,477 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/sv-benchmarks/c/loops/matrix_false-unreach-call_true-termination.i [2018-10-26 23:08:56,481 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/26e062198/3988b39b86894ffbad15bd62d9fcdb39/FLAG33ad7df80 [2018-10-26 23:08:56,494 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/data/26e062198/3988b39b86894ffbad15bd62d9fcdb39 [2018-10-26 23:08:56,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:08:56,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:08:56,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:08:56,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:08:56,502 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:08:56,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb409ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56, skipping insertion in model container [2018-10-26 23:08:56,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:08:56,532 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:08:56,654 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:08:56,657 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:08:56,680 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:08:56,698 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:08:56,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56 WrapperNode [2018-10-26 23:08:56,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:08:56,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:08:56,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:08:56,699 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:08:56,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... [2018-10-26 23:08:56,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:08:56,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:08:56,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:08:56,737 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:08:56,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:08:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:08:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:08:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:08:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:08:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:08:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:08:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-10-26 23:08:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 23:08:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:08:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 23:08:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-10-26 23:08:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-10-26 23:08:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 23:08:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:08:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:08:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-10-26 23:08:57,389 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:08:57,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:08:57 BoogieIcfgContainer [2018-10-26 23:08:57,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:08:57,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:08:57,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:08:57,396 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:08:57,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:08:56" (1/3) ... [2018-10-26 23:08:57,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12224c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:08:57, skipping insertion in model container [2018-10-26 23:08:57,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:08:56" (2/3) ... [2018-10-26 23:08:57,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12224c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:08:57, skipping insertion in model container [2018-10-26 23:08:57,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:08:57" (3/3) ... [2018-10-26 23:08:57,399 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_false-unreach-call_true-termination.i [2018-10-26 23:08:57,410 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:08:57,418 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:08:57,433 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:08:57,453 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:08:57,453 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:08:57,453 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:08:57,453 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:08:57,454 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:08:57,454 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:08:57,454 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:08:57,454 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:08:57,454 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:08:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-10-26 23:08:57,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:08:57,471 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:08:57,472 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:08:57,475 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:08:57,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:08:57,480 INFO L82 PathProgramCache]: Analyzing trace with hash -546249348, now seen corresponding path program 1 times [2018-10-26 23:08:57,483 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 23:08:57,483 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 23:08:57,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:08:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:08:57,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:08:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:08:57,556 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2018-10-26 23:08:57,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:08:57,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:08:57,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:08:57,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:08:57,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:08:57,571 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-10-26 23:08:57,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:08:57,590 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2018-10-26 23:08:57,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:08:57,591 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-10-26 23:08:57,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:08:57,599 INFO L225 Difference]: With dead ends: 76 [2018-10-26 23:08:57,599 INFO L226 Difference]: Without dead ends: 36 [2018-10-26 23:08:57,602 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:08:57,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-26 23:08:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-10-26 23:08:57,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-26 23:08:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-10-26 23:08:57,633 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 19 [2018-10-26 23:08:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:08:57,634 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-10-26 23:08:57,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:08:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-10-26 23:08:57,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 23:08:57,635 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:08:57,635 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:08:57,636 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:08:57,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:08:57,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1359947222, now seen corresponding path program 1 times [2018-10-26 23:08:57,637 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 23:08:57,637 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 23:08:57,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:08:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:08:57,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:08:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:08:57,731 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (3)] Exception during sending of exit command (exit): Broken pipe [2018-10-26 23:08:57,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:08:57,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:08:57,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:08:57,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:08:57,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:08:57,736 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2018-10-26 23:08:58,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:08:58,144 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2018-10-26 23:08:58,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 23:08:58,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-10-26 23:08:58,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:08:58,150 INFO L225 Difference]: With dead ends: 75 [2018-10-26 23:08:58,150 INFO L226 Difference]: Without dead ends: 57 [2018-10-26 23:08:58,151 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:08:58,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-10-26 23:08:58,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2018-10-26 23:08:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 23:08:58,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-10-26 23:08:58,161 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 20 [2018-10-26 23:08:58,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:08:58,161 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-10-26 23:08:58,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:08:58,161 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-10-26 23:08:58,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 23:08:58,162 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:08:58,162 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:08:58,162 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:08:58,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:08:58,163 INFO L82 PathProgramCache]: Analyzing trace with hash 153491957, now seen corresponding path program 1 times [2018-10-26 23:08:58,163 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 23:08:58,163 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 23:08:58,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:08:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:08:58,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:08:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:08:58,221 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:08:58,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:08:58,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:08:58,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:08:58,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:08:58,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:08:58,228 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 4 states. [2018-10-26 23:08:58,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:08:58,431 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2018-10-26 23:08:58,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 23:08:58,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-26 23:08:58,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:08:58,435 INFO L225 Difference]: With dead ends: 92 [2018-10-26 23:08:58,435 INFO L226 Difference]: Without dead ends: 53 [2018-10-26 23:08:58,435 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:08:58,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-26 23:08:58,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2018-10-26 23:08:58,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-26 23:08:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-10-26 23:08:58,442 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2018-10-26 23:08:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:08:58,442 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-10-26 23:08:58,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:08:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-10-26 23:08:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 23:08:58,443 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:08:58,443 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:08:58,443 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:08:58,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:08:58,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1857611747, now seen corresponding path program 1 times [2018-10-26 23:08:58,446 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 23:08:58,446 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 23:08:58,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:08:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:08:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:08:58,674 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:08:58,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:08:58 BoogieIcfgContainer [2018-10-26 23:08:58,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:08:58,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:08:58,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:08:58,705 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:08:58,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:08:57" (3/4) ... [2018-10-26 23:08:58,708 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:08:58,749 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_25012b6f-f657-4958-a7fb-29628f16da2c/bin-2019/uautomizer/witness.graphml [2018-10-26 23:08:58,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:08:58,750 INFO L168 Benchmark]: Toolchain (without parser) took 2252.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 943.8 MB in the beginning and 1.0 GB in the end (delta: -80.6 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:08:58,751 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:08:58,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.79 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 933.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:08:58,752 INFO L168 Benchmark]: Boogie Preprocessor took 37.72 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:08:58,753 INFO L168 Benchmark]: RCFGBuilder took 652.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:08:58,753 INFO L168 Benchmark]: TraceAbstraction took 1313.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:08:58,754 INFO L168 Benchmark]: Witness Printer took 44.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:08:58,756 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 199.79 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 933.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.72 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 652.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1313.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. * Witness Printer took 44.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L15] unsigned int N_COL=__VERIFIER_nondet_uint(); [L16] unsigned int j,k; VAL [N_COL=1, N_LIN=1] [L17] FCALL int matriz[N_COL][N_LIN], maior; [L19] maior = __VERIFIER_nondet_int() [L20] j=0 VAL [j=0, maior=-310933642, matriz={33554432:0}, N_COL=1, N_LIN=1] [L20] COND TRUE jmaior) [L21] k++ VAL [j=0, k=1, maior=-310933642, matriz={33554432:0}, N_COL=1, N_LIN=1] [L21] COND FALSE !(k