./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/indp1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/indp1f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be --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 130cfc4671676ffb10ff6ff5bac1770d2e3c27a88a61abbafe1bb2bbab77647f ........................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-21 19:24:57,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:24:57,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:24:57,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:24:57,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:24:57,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:24:57,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:24:57,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:24:57,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:24:57,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:24:57,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:24:57,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:24:57,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:24:57,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:24:57,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:24:57,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:24:57,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:24:57,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:24:57,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:24:57,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:24:57,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:24:57,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:24:57,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:24:57,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:24:57,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:24:57,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:24:57,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:24:57,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:24:57,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:24:57,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:24:57,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:24:57,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:24:57,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:24:57,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:24:57,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:24:57,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:24:57,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:24:57,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:24:57,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:24:57,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:24:57,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:24:57,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:24:57,929 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:24:57,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:24:57,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:24:57,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:24:57,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:24:57,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:24:57,932 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:24:57,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:24:57,933 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:24:57,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:24:57,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:24:57,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:24:57,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:24:57,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:24:57,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:24:57,934 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:24:57,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:24:57,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:24:57,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:24:57,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:24:57,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:24:57,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:24:57,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:24:57,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:24:57,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:24:57,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:24:57,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:24:57,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:24:57,938 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:24:57,938 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:24:57,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:24:57,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:24:57,938 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_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 130cfc4671676ffb10ff6ff5bac1770d2e3c27a88a61abbafe1bb2bbab77647f [2021-10-21 19:24:58,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:24:58,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:24:58,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:24:58,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:24:58,214 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:24:58,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/array-fpi/indp1f.c [2021-10-21 19:24:58,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/data/0b4a0eb1e/5ae9efc2b27f4467862a3f0828f693a7/FLAGab00494eb [2021-10-21 19:24:58,812 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:24:58,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/sv-benchmarks/c/array-fpi/indp1f.c [2021-10-21 19:24:58,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/data/0b4a0eb1e/5ae9efc2b27f4467862a3f0828f693a7/FLAGab00494eb [2021-10-21 19:24:59,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/data/0b4a0eb1e/5ae9efc2b27f4467862a3f0828f693a7 [2021-10-21 19:24:59,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:24:59,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:24:59,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:24:59,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:24:59,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:24:59,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630d672d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59, skipping insertion in model container [2021-10-21 19:24:59,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:24:59,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:24:59,390 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_dceece86-f85a-4e1e-b947-cf68368e4711/sv-benchmarks/c/array-fpi/indp1f.c[589,602] [2021-10-21 19:24:59,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:24:59,416 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:24:59,429 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_dceece86-f85a-4e1e-b947-cf68368e4711/sv-benchmarks/c/array-fpi/indp1f.c[589,602] [2021-10-21 19:24:59,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:24:59,451 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:24:59,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59 WrapperNode [2021-10-21 19:24:59,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:24:59,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:24:59,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:24:59,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:24:59,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:24:59,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:24:59,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:24:59,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:24:59,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:24:59,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:24:59,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:24:59,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:24:59,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (1/1) ... [2021-10-21 19:24:59,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:24:59,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:24:59,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:24:59,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:24:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:24:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:24:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:24:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:24:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:24:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:24:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:24:59,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:24:59,857 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-21 19:24:59,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:24:59 BoogieIcfgContainer [2021-10-21 19:24:59,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:24:59,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:24:59,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:24:59,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:24:59,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:24:59" (1/3) ... [2021-10-21 19:24:59,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e50ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:24:59, skipping insertion in model container [2021-10-21 19:24:59,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:59" (2/3) ... [2021-10-21 19:24:59,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e50ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:24:59, skipping insertion in model container [2021-10-21 19:24:59,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:24:59" (3/3) ... [2021-10-21 19:24:59,874 INFO L111 eAbstractionObserver]: Analyzing ICFG indp1f.c [2021-10-21 19:24:59,879 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:24:59,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:24:59,928 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:24:59,935 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 [2021-10-21 19:24:59,936 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:24:59,950 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) [2021-10-21 19:24:59,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 19:24:59,955 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:59,956 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:59,956 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:24:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:59,963 INFO L82 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2021-10-21 19:24:59,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:24:59,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930703979] [2021-10-21 19:24:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:59,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:25:00,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:25:00,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:25:00,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930703979] [2021-10-21 19:25:00,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930703979] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:25:00,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:25:00,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:25:00,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039973967] [2021-10-21 19:25:00,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:25:00,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:25:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:25:00,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:25:00,159 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) [2021-10-21 19:25:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:25:00,176 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-10-21 19:25:00,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:25:00,178 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 [2021-10-21 19:25:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:25:00,187 INFO L225 Difference]: With dead ends: 44 [2021-10-21 19:25:00,187 INFO L226 Difference]: Without dead ends: 20 [2021-10-21 19:25:00,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:25:00,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-21 19:25:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-21 19:25:00,221 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) [2021-10-21 19:25:00,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-10-21 19:25:00,224 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2021-10-21 19:25:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:25:00,225 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-21 19:25:00,225 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) [2021-10-21 19:25:00,225 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-21 19:25:00,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 19:25:00,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:25:00,226 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:25:00,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:25:00,227 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:25:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:00,228 INFO L82 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2021-10-21 19:25:00,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:00,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321535217] [2021-10-21 19:25:00,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:00,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:25:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:25:00,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:25:00,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321535217] [2021-10-21 19:25:00,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321535217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:25:00,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:25:00,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:25:00,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440253526] [2021-10-21 19:25:00,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:25:00,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:25:00,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:25:00,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:25:00,364 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-21 19:25:00,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:25:00,475 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-10-21 19:25:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:25:00,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 [2021-10-21 19:25:00,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:25:00,498 INFO L225 Difference]: With dead ends: 45 [2021-10-21 19:25:00,498 INFO L226 Difference]: Without dead ends: 32 [2021-10-21 19:25:00,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:25:00,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-21 19:25:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-10-21 19:25:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2021-10-21 19:25:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-10-21 19:25:00,506 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2021-10-21 19:25:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:25:00,506 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-10-21 19:25:00,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-21 19:25:00,507 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-10-21 19:25:00,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:25:00,508 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:25:00,508 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:25:00,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:25:00,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:25:00,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:00,510 INFO L82 PathProgramCache]: Analyzing trace with hash 615941150, now seen corresponding path program 1 times [2021-10-21 19:25:00,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:00,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254245480] [2021-10-21 19:25:00,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:00,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:00,533 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:25:00,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140901681] [2021-10-21 19:25:00,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:00,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:25:00,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:25:00,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:25:00,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:25:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:00,607 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:25:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:00,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:25:00,689 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:25:00,690 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:25:00,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:25:00,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:25:00,915 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:25:00,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:25:00 BoogieIcfgContainer [2021-10-21 19:25:00,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:25:00,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:25:00,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:25:00,977 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:25:00,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:24:59" (3/4) ... [2021-10-21 19:25:00,980 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:25:01,040 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceece86-f85a-4e1e-b947-cf68368e4711/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:25:01,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:25:01,043 INFO L168 Benchmark]: Toolchain (without parser) took 1865.10 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 80.1 MB in the beginning and 98.3 MB in the end (delta: -18.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:01,043 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory is still 40.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:25:01,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.27 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 79.2 MB in the end (delta: 613.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:01,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.56 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 77.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:25:01,045 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 ms. Allocated memory is still 107.0 MB. Free memory was 77.8 MB in the beginning and 76.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:25:01,046 INFO L168 Benchmark]: RCFGBuilder took 339.59 ms. Allocated memory is still 107.0 MB. Free memory was 76.4 MB in the beginning and 66.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:01,046 INFO L168 Benchmark]: TraceAbstraction took 1114.47 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 65.3 MB in the beginning and 101.2 MB in the end (delta: -35.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:25:01,047 INFO L168 Benchmark]: Witness Printer took 63.82 ms. Allocated memory is still 134.2 MB. Free memory was 101.2 MB in the beginning and 98.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:25:01,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory is still 40.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.27 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 79.2 MB in the end (delta: 613.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.56 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 77.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.12 ms. Allocated memory is still 107.0 MB. Free memory was 77.8 MB in the beginning and 76.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 339.59 ms. Allocated memory is still 107.0 MB. Free memory was 76.4 MB in the beginning and 66.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1114.47 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 65.3 MB in the beginning and 101.2 MB in the end (delta: -35.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 63.82 ms. Allocated memory is still 134.2 MB. Free memory was 101.2 MB in the beginning and 98.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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); [L30] i=0 VAL [N=1] [L30] COND TRUE i