./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/condnf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/condnf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB --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 f71f01dc38efbcea276a0ff799d485cde0ac6c564de665d7efc24977838eb82a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:59:57,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:59:57,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:59:57,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:59:57,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:59:57,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:59:57,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:59:57,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:59:57,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:59:57,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:59:57,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:59:57,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:59:57,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:59:57,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:59:57,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:59:57,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:59:57,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:59:57,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:59:57,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:59:57,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:59:57,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:59:57,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:59:57,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:59:57,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:59:57,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:59:57,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:59:57,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:59:57,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:59:57,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:59:57,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:59:57,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:59:57,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:59:57,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:59:57,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:59:57,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:59:57,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:59:57,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:59:57,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:59:57,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:59:57,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:59:57,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:59:57,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:59:57,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:59:57,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:59:57,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:59:57,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:59:57,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:59:57,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:59:57,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:59:57,117 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:59:57,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:59:57,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:59:57,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:59:57,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:59:57,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:59:57,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:59:57,119 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:59:57,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:59:57,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:59:57,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:59:57,126 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:59:57,126 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:59:57,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:59:57,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:59:57,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:59:57,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:59:57,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:59:57,127 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:59:57,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:59:57,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:59:57,128 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_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f71f01dc38efbcea276a0ff799d485cde0ac6c564de665d7efc24977838eb82a [2022-10-17 16:59:57,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:59:57,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:59:57,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:59:57,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:59:57,403 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:59:57,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-fpi/condnf.c [2022-10-17 16:59:57,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/data/9c8d53cc5/a293b5c1b9044795924584e38b4d6bc7/FLAG8eb93f8a7 [2022-10-17 16:59:57,922 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:59:57,923 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/sv-benchmarks/c/array-fpi/condnf.c [2022-10-17 16:59:57,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/data/9c8d53cc5/a293b5c1b9044795924584e38b4d6bc7/FLAG8eb93f8a7 [2022-10-17 16:59:58,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/data/9c8d53cc5/a293b5c1b9044795924584e38b4d6bc7 [2022-10-17 16:59:58,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:59:58,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:59:58,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:59:58,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:59:58,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:59:58,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf13ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58, skipping insertion in model container [2022-10-17 16:59:58,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:59:58,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:59:58,504 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_111678ce-db54-4a8c-a4e0-dc5c67b40293/sv-benchmarks/c/array-fpi/condnf.c[589,602] [2022-10-17 16:59:58,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:59:58,530 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:59:58,542 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_111678ce-db54-4a8c-a4e0-dc5c67b40293/sv-benchmarks/c/array-fpi/condnf.c[589,602] [2022-10-17 16:59:58,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:59:58,567 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:59:58,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58 WrapperNode [2022-10-17 16:59:58,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:59:58,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:59:58,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:59:58,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:59:58,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,618 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-10-17 16:59:58,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:59:58,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:59:58,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:59:58,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:59:58,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:59:58,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:59:58,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:59:58,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:59:58,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:58" (1/1) ... [2022-10-17 16:59:58,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:59:58,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:59:58,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:59:58,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:59:58,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:59:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:59:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:59:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:59:58,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:59:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:59:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:59:58,795 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:59:58,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:59:58,961 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:59:59,045 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:59:59,047 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:59:59,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:59:59 BoogieIcfgContainer [2022-10-17 16:59:59,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:59:59,051 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:59:59,051 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:59:59,061 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:59:59,061 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:59:59" (1/1) ... [2022-10-17 16:59:59,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:59:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2022-10-17 16:59:59,150 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2022-10-17 16:59:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:59:59,152 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:59:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:59:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:59:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:59:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2022-10-17 16:59:59,594 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2022-10-17 16:59:59,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:59:59,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:59:59,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:59:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:59:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:59:59,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2022-10-17 16:59:59,790 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2022-10-17 16:59:59,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:59:59,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:59:59,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:59:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:59:59,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:59:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:59:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:59:59,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:00:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:00,044 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-10-17 17:00:00,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:00:00 ImpRootNode [2022-10-17 17:00:00,086 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:00:00,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:00:00,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:00:00,089 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:00:00,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:59:59" (3/4) ... [2022-10-17 17:00:00,091 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:00:00,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111678ce-db54-4a8c-a4e0-dc5c67b40293/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:00:00,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:00:00,150 INFO L158 Benchmark]: Toolchain (without parser) took 1841.00ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 68.9MB in the beginning and 59.7MB in the end (delta: 9.2MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-10-17 17:00:00,150 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 65.8MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:00,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.99ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 66.7MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:00:00,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.97ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 65.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:00,152 INFO L158 Benchmark]: Boogie Preprocessor took 43.28ms. Allocated memory is still 92.3MB. Free memory was 65.0MB in the beginning and 63.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:00,153 INFO L158 Benchmark]: RCFGBuilder took 387.15ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 50.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 17:00:00,154 INFO L158 Benchmark]: CodeCheck took 1034.65ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 50.5MB in the beginning and 61.8MB in the end (delta: -11.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-10-17 17:00:00,154 INFO L158 Benchmark]: Witness Printer took 60.44ms. Allocated memory is still 111.1MB. Free memory was 61.8MB in the beginning and 59.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:00,157 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s 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, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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] int *a = malloc(sizeof(int)*N); [L30] i=0 VAL [a={-1:0}, i=0, N=1] [L30] COND TRUE i N [L38] EXPR a[i] [L38] a[i] = a[i] [L35] i++ VAL [a={-1:0}, a[i]=0, i=1, N=1] [L35] COND FALSE !(i