./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ncompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ncompf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg --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 9828ae97bd89bb8bc9e03b825846d0b3720f0cca297df36eda8ff823667b1534 ......................................................................................................................................................................................................................................................................................................................... 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-dev-b2eff8b [2021-10-28 09:03:58,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:03:58,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:03:58,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:03:58,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:03:58,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:03:58,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:03:58,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:03:58,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:03:58,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:03:58,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:03:58,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:03:58,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:03:58,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:03:58,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:03:58,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:03:58,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:03:58,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:03:58,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:03:58,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:03:58,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:03:58,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:03:58,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:03:58,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:03:58,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:03:58,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:03:58,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:03:58,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:03:58,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:03:58,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:03:58,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:03:58,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:03:58,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:03:58,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:03:58,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:03:58,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:03:58,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:03:58,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:03:58,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:03:58,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:03:58,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:03:58,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:03:58,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:03:58,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:03:58,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:03:58,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:03:58,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:03:58,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:03:58,889 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:03:58,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:03:58,889 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:03:58,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:03:58,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:03:58,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:03:58,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:03:58,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:03:58,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:03:58,892 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:03:58,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:03:58,892 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:03:58,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:03:58,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:03:58,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:03:58,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:03:58,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:03:58,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:03:58,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:03:58,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:03:58,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:03:58,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:03:58,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:03:58,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:03:58,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:03:58,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:03:58,897 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9828ae97bd89bb8bc9e03b825846d0b3720f0cca297df36eda8ff823667b1534 [2021-10-28 09:03:59,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:03:59,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:03:59,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:03:59,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:03:59,195 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:03:59,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-fpi/ncompf.c [2021-10-28 09:03:59,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/data/e3f156712/d04a3daa7a5c404485a6fab1641d38f3/FLAGeb5199630 [2021-10-28 09:03:59,721 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:03:59,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/sv-benchmarks/c/array-fpi/ncompf.c [2021-10-28 09:03:59,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/data/e3f156712/d04a3daa7a5c404485a6fab1641d38f3/FLAGeb5199630 [2021-10-28 09:04:00,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/data/e3f156712/d04a3daa7a5c404485a6fab1641d38f3 [2021-10-28 09:04:00,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:04:00,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:04:00,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:00,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:04:00,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:04:00,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3bd6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00, skipping insertion in model container [2021-10-28 09:04:00,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:04:00,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:04:00,340 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/sv-benchmarks/c/array-fpi/ncompf.c[589,602] [2021-10-28 09:04:00,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:00,382 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:04:00,397 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/sv-benchmarks/c/array-fpi/ncompf.c[589,602] [2021-10-28 09:04:00,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:04:00,443 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:04:00,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00 WrapperNode [2021-10-28 09:04:00,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:04:00,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:00,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:04:00,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:04:00,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:04:00,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:04:00,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:04:00,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:04:00,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:04:00,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:04:00,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:04:00,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:04:00,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (1/1) ... [2021-10-28 09:04:00,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:04:00,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:00,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:04:00,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:04:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:04:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:04:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:04:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:04:00,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:04:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:04:00,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:04:00,976 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:04:00,976 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-28 09:04:00,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:00 BoogieIcfgContainer [2021-10-28 09:04:00,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:04:00,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:04:00,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:04:00,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:04:00,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:04:00" (1/3) ... [2021-10-28 09:04:00,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2b2522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:04:00, skipping insertion in model container [2021-10-28 09:04:00,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:04:00" (2/3) ... [2021-10-28 09:04:00,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2b2522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:04:00, skipping insertion in model container [2021-10-28 09:04:00,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:00" (3/3) ... [2021-10-28 09:04:00,987 INFO L111 eAbstractionObserver]: Analyzing ICFG ncompf.c [2021-10-28 09:04:00,992 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:04:00,992 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:04:01,038 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:04:01,045 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:04:01,045 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:04:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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) [2021-10-28 09:04:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:04:01,084 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:01,085 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:01,091 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:01,096 INFO L85 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2021-10-28 09:04:01,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:01,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86872624] [2021-10-28 09:04:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:01,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:01,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:04:01,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86872624] [2021-10-28 09:04:01,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86872624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:01,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:01,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:04:01,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938234469] [2021-10-28 09:04:01,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:04:01,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:04:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:04:01,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:04:01,362 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-10-28 09:04:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:01,384 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-10-28 09:04:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:04:01,386 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2021-10-28 09:04:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:04:01,395 INFO L225 Difference]: With dead ends: 44 [2021-10-28 09:04:01,395 INFO L226 Difference]: Without dead ends: 20 [2021-10-28 09:04:01,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:04:01,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-28 09:04:01,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-28 09:04:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2021-10-28 09:04:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-10-28 09:04:01,434 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2021-10-28 09:04:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:04:01,434 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-28 09:04:01,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-10-28 09:04:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-28 09:04:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:04:01,436 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:01,437 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:01,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:04:01,438 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:01,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:01,442 INFO L85 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2021-10-28 09:04:01,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:04:01,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850722417] [2021-10-28 09:04:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:01,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:04:01,488 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:04:01,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467412009] [2021-10-28 09:04:01,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:01,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:04:01,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:04:01,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:04:01,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:04:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:01,580 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:04:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:04:01,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:01,627 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:04:01,645 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:04:01,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:01,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:04:01,865 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:04:01,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:04:01,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:04:01 BoogieIcfgContainer [2021-10-28 09:04:01,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:04:01,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:04:01,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:04:01,905 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:04:01,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:04:00" (3/4) ... [2021-10-28 09:04:01,908 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 09:04:01,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca08b7e8-34c7-4b4f-9f9d-55d955d9068c/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:04:01,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:04:01,957 INFO L168 Benchmark]: Toolchain (without parser) took 1838.31 ms. Allocated memory was 123.7 MB in the beginning and 169.9 MB in the end (delta: 46.1 MB). Free memory was 88.7 MB in the beginning and 143.9 MB in the end (delta: -55.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:01,957 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 81.8 MB. Free memory is still 36.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:01,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.48 ms. Allocated memory is still 123.7 MB. Free memory was 88.4 MB in the beginning and 96.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:01,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.94 ms. Allocated memory is still 123.7 MB. Free memory was 96.3 MB in the beginning and 94.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:01,959 INFO L168 Benchmark]: Boogie Preprocessor took 50.13 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:01,960 INFO L168 Benchmark]: RCFGBuilder took 424.36 ms. Allocated memory is still 123.7 MB. Free memory was 93.3 MB in the beginning and 82.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:01,961 INFO L168 Benchmark]: TraceAbstraction took 913.31 ms. Allocated memory is still 123.7 MB. Free memory was 81.7 MB in the beginning and 96.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:01,962 INFO L168 Benchmark]: Witness Printer took 61.31 ms. Allocated memory was 123.7 MB in the beginning and 169.9 MB in the end (delta: 46.1 MB). Free memory was 96.4 MB in the beginning and 143.9 MB in the end (delta: -47.5 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:01,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 81.8 MB. Free memory is still 36.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.48 ms. Allocated memory is still 123.7 MB. Free memory was 88.4 MB in the beginning and 96.3 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.94 ms. Allocated memory is still 123.7 MB. Free memory was 96.3 MB in the beginning and 94.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.13 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 424.36 ms. Allocated memory is still 123.7 MB. Free memory was 93.3 MB in the beginning and 82.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 913.31 ms. Allocated memory is still 123.7 MB. Free memory was 81.7 MB in the beginning and 96.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * Witness Printer took 61.31 ms. Allocated memory was 123.7 MB in the beginning and 169.9 MB in the end (delta: 46.1 MB). Free memory was 96.4 MB in the beginning and 143.9 MB in the end (delta: -47.5 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L30] long long *c = malloc(sizeof(long long)*N); [L32] a[0] = 6 [L33] b[0] = 1 [L34] c[0] = 0 [L35] i=1 VAL [N=1] [L35] COND FALSE !(i