./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss3f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ss3f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro --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 76ae16499864b13b3948e2270be5b31e7a14f523ef5d86d5f7c4d24360e8b13e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:51:07,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:51:07,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:51:07,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:51:07,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:51:07,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:51:07,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:51:07,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:51:07,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:51:07,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:51:07,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:51:07,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:51:07,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:51:07,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:51:07,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:51:07,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:51:07,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:51:07,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:51:07,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:51:07,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:51:07,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:51:07,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:51:07,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:51:07,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:51:07,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:51:07,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:51:07,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:51:07,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:51:07,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:51:07,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:51:07,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:51:07,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:51:07,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:51:07,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:51:07,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:51:07,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:51:07,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:51:07,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:51:07,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:51:07,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:51:07,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:51:07,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:51:07,442 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:51:07,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:51:07,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:51:07,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:51:07,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:51:07,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:51:07,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:51:07,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:51:07,446 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:51:07,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:51:07,447 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:51:07,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:51:07,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:51:07,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:51:07,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:51:07,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:51:07,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:51:07,448 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:51:07,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:51:07,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:51:07,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:51:07,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:51:07,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:51:07,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:51:07,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:51:07,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:51:07,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:51:07,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:51:07,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:51:07,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:51:07,452 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:51:07,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:51:07,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:51:07,453 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_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76ae16499864b13b3948e2270be5b31e7a14f523ef5d86d5f7c4d24360e8b13e [2022-11-18 20:51:07,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:51:07,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:51:07,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:51:07,890 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:51:07,891 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:51:07,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-fpi/ss3f.c [2022-11-18 20:51:07,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/data/55913d3c3/5b42f1a182f84198bec9f8203c022bcb/FLAG8a273b241 [2022-11-18 20:51:08,551 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:51:08,553 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/sv-benchmarks/c/array-fpi/ss3f.c [2022-11-18 20:51:08,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/data/55913d3c3/5b42f1a182f84198bec9f8203c022bcb/FLAG8a273b241 [2022-11-18 20:51:08,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/data/55913d3c3/5b42f1a182f84198bec9f8203c022bcb [2022-11-18 20:51:08,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:51:08,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:51:08,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:51:08,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:51:08,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:51:08,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:08" (1/1) ... [2022-11-18 20:51:08,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bec2c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:08, skipping insertion in model container [2022-11-18 20:51:08,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:08" (1/1) ... [2022-11-18 20:51:08,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:51:08,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:51:09,207 WARN L234 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_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/sv-benchmarks/c/array-fpi/ss3f.c[587,600] [2022-11-18 20:51:09,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:51:09,276 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:51:09,298 WARN L234 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_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/sv-benchmarks/c/array-fpi/ss3f.c[587,600] [2022-11-18 20:51:09,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:51:09,327 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:51:09,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09 WrapperNode [2022-11-18 20:51:09,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:51:09,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:51:09,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:51:09,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:51:09,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,373 INFO L138 Inliner]: procedures = 17, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2022-11-18 20:51:09,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:51:09,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:51:09,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:51:09,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:51:09,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,414 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:51:09,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:51:09,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:51:09,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:51:09,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (1/1) ... [2022-11-18 20:51:09,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:51:09,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:09,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:51:09,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:51:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:51:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:51:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:51:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:51:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:51:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:51:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:51:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:51:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:51:09,695 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:51:09,698 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:51:09,977 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:51:09,985 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:51:09,985 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:51:09,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:09 BoogieIcfgContainer [2022-11-18 20:51:09,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:51:09,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:51:09,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:51:09,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:51:09,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:51:08" (1/3) ... [2022-11-18 20:51:09,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517bf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:09, skipping insertion in model container [2022-11-18 20:51:09,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:09" (2/3) ... [2022-11-18 20:51:09,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1517bf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:09, skipping insertion in model container [2022-11-18 20:51:09,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:09" (3/3) ... [2022-11-18 20:51:10,000 INFO L112 eAbstractionObserver]: Analyzing ICFG ss3f.c [2022-11-18 20:51:10,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:51:10,025 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:51:10,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:51:10,097 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7be656b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:51:10,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:51:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 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) [2022-11-18 20:51:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:51:10,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:10,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:10,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:51:10,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:10,117 INFO L85 PathProgramCache]: Analyzing trace with hash 118053350, now seen corresponding path program 1 times [2022-11-18 20:51:10,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:10,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868341222] [2022-11-18 20:51:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:10,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:10,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:10,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868341222] [2022-11-18 20:51:10,394 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 20:51:10,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174703563] [2022-11-18 20:51:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:10,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:10,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:10,400 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:10,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:51:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:10,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:51:10,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:51:10,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:10,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174703563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:10,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:10,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:51:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328011114] [2022-11-18 20:51:10,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:10,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:51:10,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:10,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:51:10,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:51:10,664 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-11-18 20:51:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:10,693 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-11-18 20:51:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:51:10,696 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-11-18 20:51:10,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:10,713 INFO L225 Difference]: With dead ends: 50 [2022-11-18 20:51:10,714 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 20:51:10,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:51:10,723 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:10,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:51:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 20:51:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-18 20:51:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2022-11-18 20:51:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-18 20:51:10,794 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2022-11-18 20:51:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:10,796 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-18 20:51:10,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-11-18 20:51:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-18 20:51:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:51:10,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:10,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:10,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:11,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 20:51:11,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:51:11,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1065017552, now seen corresponding path program 1 times [2022-11-18 20:51:11,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:11,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591192638] [2022-11-18 20:51:11,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:11,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:11,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:11,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591192638] [2022-11-18 20:51:11,061 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 20:51:11,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069138800] [2022-11-18 20:51:11,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:11,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:11,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:11,063 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:11,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:51:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:11,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:51:11,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:51:11,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:11,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069138800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:11,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:11,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:51:11,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184456359] [2022-11-18 20:51:11,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:11,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:51:11,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:11,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:51:11,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:11,240 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-18 20:51:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:11,321 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2022-11-18 20:51:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:51:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-11-18 20:51:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:11,323 INFO L225 Difference]: With dead ends: 49 [2022-11-18 20:51:11,324 INFO L226 Difference]: Without dead ends: 33 [2022-11-18 20:51:11,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:11,326 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 38 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:11,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 13 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:11,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-18 20:51:11,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-11-18 20:51:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 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) [2022-11-18 20:51:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-18 20:51:11,334 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2022-11-18 20:51:11,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:11,335 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-18 20:51:11,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-18 20:51:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-18 20:51:11,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:51:11,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:11,337 INFO L195 NwaCegarLoop]: 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, 1, 1, 1] [2022-11-18 20:51:11,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:11,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:11,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:51:11,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:11,544 INFO L85 PathProgramCache]: Analyzing trace with hash 524088314, now seen corresponding path program 1 times [2022-11-18 20:51:11,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:11,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084910408] [2022-11-18 20:51:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:11,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:11,611 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:51:11,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570475030] [2022-11-18 20:51:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:11,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:11,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:11,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:11,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:51:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:51:11,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:51:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:51:11,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:51:11,832 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:51:11,834 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:51:11,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:12,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-18 20:51:12,051 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 20:51:12,054 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:51:12,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:51:12 BoogieIcfgContainer [2022-11-18 20:51:12,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:51:12,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:51:12,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:51:12,109 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:51:12,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:09" (3/4) ... [2022-11-18 20:51:12,112 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:51:12,172 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_090ed6c7-f4e7-4d09-a0bc-59faeff5a60c/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:51:12,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:51:12,173 INFO L158 Benchmark]: Toolchain (without parser) took 3280.69ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 108.8MB in the beginning and 127.8MB in the end (delta: -19.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-11-18 20:51:12,174 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:51:12,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.50ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 116.0MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:51:12,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.63ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 114.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:51:12,176 INFO L158 Benchmark]: Boogie Preprocessor took 57.96ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 112.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:51:12,176 INFO L158 Benchmark]: RCFGBuilder took 555.34ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 100.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:51:12,177 INFO L158 Benchmark]: TraceAbstraction took 2117.01ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 99.4MB in the beginning and 129.9MB in the end (delta: -30.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-11-18 20:51:12,178 INFO L158 Benchmark]: Witness Printer took 64.02ms. Allocated memory is still 182.5MB. Free memory was 129.9MB in the beginning and 127.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:51:12,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.50ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 116.0MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.63ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 114.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.96ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 112.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.34ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 100.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2117.01ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 99.4MB in the beginning and 129.9MB in the end (delta: -30.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Witness Printer took 64.02ms. Allocated memory is still 182.5MB. Free memory was 129.9MB in the beginning and 127.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [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 [a={4:0}, i=0, N=1, sum={6:0}] [L32] COND TRUE i