./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/nsqm-iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/nsqm-iff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash afabd041c1f9e44fb1eb4b2a4796412ceecc4ddc5ece54973c70db8b2f8169c2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:35:02,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:35:02,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:35:02,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:35:02,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:35:02,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:35:02,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:35:02,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:35:02,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:35:02,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:35:02,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:35:02,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:35:02,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:35:02,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:35:02,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:35:02,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:35:02,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:35:02,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:35:02,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:35:02,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:35:02,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:35:02,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:35:02,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:35:02,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:35:02,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:35:02,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:35:02,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:35:02,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:35:02,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:35:02,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:35:02,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:35:02,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:35:02,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:35:02,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:35:02,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:35:02,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:35:02,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:35:02,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:35:02,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:35:02,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:35:02,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:35:02,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:35:02,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:35:02,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:35:02,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:35:02,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:35:02,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:35:02,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:35:02,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:35:02,818 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:35:02,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:35:02,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:35:02,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:35:02,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:35:02,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:35:02,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:35:02,820 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:35:02,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:35:02,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:35:02,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:35:02,821 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:35:02,821 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:35:02,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:35:02,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:35:02,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:35:02,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:35:02,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:35:02,823 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:35:02,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:35:02,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:35:02,824 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_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afabd041c1f9e44fb1eb4b2a4796412ceecc4ddc5ece54973c70db8b2f8169c2 [2021-11-23 00:35:03,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:35:03,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:35:03,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:35:03,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:35:03,159 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:35:03,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-fpi/nsqm-iff.c [2021-11-23 00:35:03,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/data/3c1785fd3/27fd5fcb4567484d84f8343acc4356ea/FLAGf1658b8c2 [2021-11-23 00:35:03,776 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:35:03,777 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/sv-benchmarks/c/array-fpi/nsqm-iff.c [2021-11-23 00:35:03,783 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/data/3c1785fd3/27fd5fcb4567484d84f8343acc4356ea/FLAGf1658b8c2 [2021-11-23 00:35:04,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/data/3c1785fd3/27fd5fcb4567484d84f8343acc4356ea [2021-11-23 00:35:04,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:35:04,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:35:04,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:35:04,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:35:04,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:35:04,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144da960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04, skipping insertion in model container [2021-11-23 00:35:04,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:35:04,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:35:04,364 WARN L230 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_dbf65e85-e95e-454f-ab8c-708cc5811183/sv-benchmarks/c/array-fpi/nsqm-iff.c[591,604] [2021-11-23 00:35:04,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:35:04,419 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:35:04,429 WARN L230 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_dbf65e85-e95e-454f-ab8c-708cc5811183/sv-benchmarks/c/array-fpi/nsqm-iff.c[591,604] [2021-11-23 00:35:04,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:35:04,448 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:35:04,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04 WrapperNode [2021-11-23 00:35:04,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:35:04,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:35:04,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:35:04,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:35:04,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,482 INFO L137 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2021-11-23 00:35:04,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:35:04,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:35:04,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:35:04,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:35:04,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:35:04,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:35:04,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:35:04,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:35:04,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:35:04,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:35:04,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:35:04,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:35:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:35:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:35:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:35:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:35:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:35:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:35:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:35:04,666 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:35:04,667 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:35:04,817 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:35:04,860 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:35:04,861 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 00:35:04,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:04 BoogieIcfgContainer [2021-11-23 00:35:04,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:35:04,864 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:35:04,865 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:35:04,875 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:35:04,875 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:04" (1/1) ... [2021-11-23 00:35:04,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:04,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-11-23 00:35:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-11-23 00:35:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:35:04,941 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:04,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:05,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-11-23 00:35:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-23 00:35:05,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:35:05,190 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:05,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:05,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:35:05,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:35:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:35:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2021-11-23 00:35:05,468 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2021-11-23 00:35:05,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:35:05,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:05,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:35:05,517 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:35:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:35:05,555 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-11-23 00:35:05,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:35:05 ImpRootNode [2021-11-23 00:35:05,588 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:35:05,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:35:05,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:35:05,589 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:35:05,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:04" (3/4) ... [2021-11-23 00:35:05,591 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:35:05,636 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf65e85-e95e-454f-ab8c-708cc5811183/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:35:05,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:35:05,637 INFO L158 Benchmark]: Toolchain (without parser) took 1487.30ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 79.0MB in the beginning and 100.2MB in the end (delta: -21.3MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-23 00:35:05,637 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 111.1MB. Free memory was 66.2MB in the beginning and 66.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:35:05,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.83ms. Allocated memory is still 111.1MB. Free memory was 78.7MB in the beginning and 84.7MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:35:05,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.55ms. Allocated memory is still 111.1MB. Free memory was 84.7MB in the beginning and 83.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:35:05,639 INFO L158 Benchmark]: Boogie Preprocessor took 25.29ms. Allocated memory is still 111.1MB. Free memory was 83.0MB in the beginning and 81.8MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:35:05,640 INFO L158 Benchmark]: RCFGBuilder took 354.04ms. Allocated memory is still 111.1MB. Free memory was 81.8MB in the beginning and 69.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 00:35:05,640 INFO L158 Benchmark]: CodeCheck took 723.23ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 69.2MB in the beginning and 102.3MB in the end (delta: -33.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:35:05,641 INFO L158 Benchmark]: Witness Printer took 47.81ms. Allocated memory is still 136.3MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:35:05,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 10 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [a={-2:0}, b={-1:0}, i=0, N=1] [L31] COND TRUE i