./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modsf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/modsf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3 --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 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 ................................................................................................................................................................................................................................................................................................................................................................. 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-5709675 [2021-10-15 19:28:39,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:28:39,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:28:39,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:28:39,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:28:39,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:28:39,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:28:39,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:28:39,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:28:39,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:28:39,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:28:39,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:28:39,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:28:39,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:28:39,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:28:39,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:28:39,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:28:39,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:28:39,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:28:39,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:28:39,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:28:39,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:28:39,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:28:39,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:28:39,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:28:39,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:28:39,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:28:39,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:28:39,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:28:39,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:28:39,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:28:39,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:28:39,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:28:39,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:28:39,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:28:39,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:28:39,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:28:39,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:28:39,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:28:39,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:28:39,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:28:39,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:28:39,347 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:28:39,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:28:39,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:28:39,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:28:39,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:28:39,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:28:39,350 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:28:39,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:28:39,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:28:39,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:28:39,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:28:39,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:28:39,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:28:39,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:28:39,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:28:39,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:28:39,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:28:39,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:28:39,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:28:39,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:28:39,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:28:39,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:28:39,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:28:39,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:28:39,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:28:39,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:28:39,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:28:39,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:28:39,360 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:28:39,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:28:39,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:28:39,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:28:39,362 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_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 [2021-10-15 19:28:39,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:28:39,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:28:39,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:28:39,861 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:28:39,861 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:28:39,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/array-fpi/modsf.c [2021-10-15 19:28:39,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/data/9e650c0f6/1ffe2bd0a51142018692ad302618182e/FLAG7fcd5ed11 [2021-10-15 19:28:40,522 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:28:40,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/sv-benchmarks/c/array-fpi/modsf.c [2021-10-15 19:28:40,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/data/9e650c0f6/1ffe2bd0a51142018692ad302618182e/FLAG7fcd5ed11 [2021-10-15 19:28:40,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/data/9e650c0f6/1ffe2bd0a51142018692ad302618182e [2021-10-15 19:28:40,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:28:40,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:28:40,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:28:40,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:28:40,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:28:40,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:28:40" (1/1) ... [2021-10-15 19:28:40,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e9e50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:40, skipping insertion in model container [2021-10-15 19:28:40,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:28:40" (1/1) ... [2021-10-15 19:28:40,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:28:40,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:28:41,151 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_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/sv-benchmarks/c/array-fpi/modsf.c[588,601] [2021-10-15 19:28:41,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:28:41,231 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:28:41,253 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_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/sv-benchmarks/c/array-fpi/modsf.c[588,601] [2021-10-15 19:28:41,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:28:41,310 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:28:41,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41 WrapperNode [2021-10-15 19:28:41,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:28:41,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:28:41,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:28:41,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:28:41,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:28:41,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:28:41,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:28:41,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:28:41,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:28:41,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:28:41,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:28:41,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:28:41,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (1/1) ... [2021-10-15 19:28:41,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:28:41,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:28:41,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:28:41,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:28:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:28:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:28:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:28:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:28:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:28:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:28:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:28:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:28:41,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:28:41,904 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-15 19:28:41,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:28:41 BoogieIcfgContainer [2021-10-15 19:28:41,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:28:41,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:28:41,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:28:41,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:28:41,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:28:40" (1/3) ... [2021-10-15 19:28:41,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3ed8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:28:41, skipping insertion in model container [2021-10-15 19:28:41,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:28:41" (2/3) ... [2021-10-15 19:28:41,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3ed8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:28:41, skipping insertion in model container [2021-10-15 19:28:41,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:28:41" (3/3) ... [2021-10-15 19:28:41,920 INFO L111 eAbstractionObserver]: Analyzing ICFG modsf.c [2021-10-15 19:28:41,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:28:41,928 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:28:42,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:28:42,042 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, mConcurrency=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 [2021-10-15 19:28:42,043 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:28:42,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 39 transitions, 78 flow [2021-10-15 19:28:42,087 INFO L129 PetriNetUnfolder]: 13/39 cut-off events. [2021-10-15 19:28:42,088 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:28:42,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 39 events. 13/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 31 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-15 19:28:42,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 39 transitions, 78 flow [2021-10-15 19:28:42,112 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 33 transitions, 66 flow [2021-10-15 19:28:42,121 INFO L129 PetriNetUnfolder]: 10/30 cut-off events. [2021-10-15 19:28:42,121 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:28:42,121 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:28:42,122 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:28:42,123 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:28:42,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:28:42,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1826985200, now seen corresponding path program 1 times [2021-10-15 19:28:42,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:28:42,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396891352] [2021-10-15 19:28:42,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:28:42,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:28:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:28:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:28:42,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:28:42,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396891352] [2021-10-15 19:28:42,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396891352] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:28:42,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:28:42,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:28:42,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578752212] [2021-10-15 19:28:42,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:28:42,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:28:42,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:28:42,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:28:42,615 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2021-10-15 19:28:42,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 33 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-10-15 19:28:42,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:28:42,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2021-10-15 19:28:42,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:28:42,764 INFO L129 PetriNetUnfolder]: 5/41 cut-off events. [2021-10-15 19:28:42,764 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:28:42,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 41 events. 5/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 3/38 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-10-15 19:28:42,767 INFO L132 encePairwiseOnDemand]: 18/39 looper letters, 21 selfloop transitions, 11 changer transitions 0/37 dead transitions. [2021-10-15 19:28:42,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 37 transitions, 138 flow [2021-10-15 19:28:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:28:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-15 19:28:42,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2021-10-15 19:28:42,784 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5064102564102564 [2021-10-15 19:28:42,784 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 79 transitions. [2021-10-15 19:28:42,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 79 transitions. [2021-10-15 19:28:42,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:28:42,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 79 transitions. [2021-10-15 19:28:42,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2021-10-15 19:28:42,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-10-15 19:28:42,799 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-10-15 19:28:42,801 INFO L186 Difference]: Start difference. First operand has 23 places, 33 transitions, 66 flow. Second operand 4 states and 79 transitions. [2021-10-15 19:28:42,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 37 transitions, 138 flow [2021-10-15 19:28:42,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 37 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:28:42,809 INFO L242 Difference]: Finished difference. Result has 27 places, 32 transitions, 114 flow [2021-10-15 19:28:42,812 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=27, PETRI_TRANSITIONS=32} [2021-10-15 19:28:42,813 INFO L334 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2021-10-15 19:28:42,813 INFO L470 AbstractCegarLoop]: Abstraction has has 27 places, 32 transitions, 114 flow [2021-10-15 19:28:42,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-10-15 19:28:42,813 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:28:42,814 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:28:42,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:28:42,814 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:28:42,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:28:42,816 INFO L82 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2021-10-15 19:28:42,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:28:42,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451370047] [2021-10-15 19:28:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:28:42,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:28:42,858 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-15 19:28:42,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555149647] [2021-10-15 19:28:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:28:42,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:28:42,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:28:42,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:28:42,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-15 19:28:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:28:42,957 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:28:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:28:43,044 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:28:43,045 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:28:43,048 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:28:43,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:28:43,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-15 19:28:43,273 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:28:43,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:28:43 BoogieIcfgContainer [2021-10-15 19:28:43,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:28:43,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:28:43,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:28:43,335 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:28:43,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:28:41" (3/4) ... [2021-10-15 19:28:43,338 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-15 19:28:43,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5e1676-3cd1-49a9-aa29-d057dbfa5113/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:28:43,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:28:43,471 INFO L168 Benchmark]: Toolchain (without parser) took 2606.24 ms. Allocated memory is still 119.5 MB. Free memory was 80.1 MB in the beginning and 93.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,472 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 119.5 MB. Free memory was 96.3 MB in the beginning and 96.2 MB in the end (delta: 70.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.63 ms. Allocated memory is still 119.5 MB. Free memory was 79.9 MB in the beginning and 94.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.17 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 92.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,475 INFO L168 Benchmark]: Boogie Preprocessor took 65.98 ms. Allocated memory is still 119.5 MB. Free memory was 92.7 MB in the beginning and 91.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,476 INFO L168 Benchmark]: RCFGBuilder took 446.42 ms. Allocated memory is still 119.5 MB. Free memory was 91.4 MB in the beginning and 79.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,476 INFO L168 Benchmark]: TraceAbstraction took 1423.85 ms. Allocated memory is still 119.5 MB. Free memory was 79.3 MB in the beginning and 44.6 MB in the end (delta: 34.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,477 INFO L168 Benchmark]: Witness Printer took 134.46 ms. Allocated memory is still 119.5 MB. Free memory was 44.6 MB in the beginning and 93.8 MB in the end (delta: -49.2 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:28:43,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 119.5 MB. Free memory was 96.3 MB in the beginning and 96.2 MB in the end (delta: 70.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 442.63 ms. Allocated memory is still 119.5 MB. Free memory was 79.9 MB in the beginning and 94.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.17 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 92.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.98 ms. Allocated memory is still 119.5 MB. Free memory was 92.7 MB in the beginning and 91.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 446.42 ms. Allocated memory is still 119.5 MB. Free memory was 91.4 MB in the beginning and 79.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1423.85 ms. Allocated memory is still 119.5 MB. Free memory was 79.3 MB in the beginning and 44.6 MB in the end (delta: 34.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 134.46 ms. Allocated memory is still 119.5 MB. Free memory was 44.6 MB in the beginning and 93.8 MB in the end (delta: -49.2 MB). Peak memory consumption was 4.7 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 sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i