./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn1f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55ee4b95b80c9eebb60e8b0eba56566adf80c74f9addd2fea6f7bbea2c0e0a47 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:36:35,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:36:36,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:36:36,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:36:36,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:36:36,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:36:36,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:36:36,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:36:36,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:36:36,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:36:36,086 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:36:36,086 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:36:36,088 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:36:36,089 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:36:36,090 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:36:36,092 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:36:36,093 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:36:36,093 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:36:36,093 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:36:36,094 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:36:36,098 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:36:36,098 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:36:36,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:36:36,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:36:36,100 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:36:36,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:36:36,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:36:36,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:36:36,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:36:36,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:36:36,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:36:36,118 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:36:36,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:36:36,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:36:36,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:36:36,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:36:36,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:36:36,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:36:36,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:36,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:36:36,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:36:36,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:36:36,126 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:36:36,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:36:36,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:36:36,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:36:36,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:36:36,128 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ee4b95b80c9eebb60e8b0eba56566adf80c74f9addd2fea6f7bbea2c0e0a47 [2024-11-02 12:36:36,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:36:36,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:36:36,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:36:36,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:36:36,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:36:36,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/array-fpi/ifeqn1f.c Unable to find full path for "g++" [2024-11-02 12:36:38,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:36:38,718 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:36:38,718 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/sv-benchmarks/c/array-fpi/ifeqn1f.c [2024-11-02 12:36:38,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/data/5fde7d1b3/ce373b59434a4d2aa46a9a17f1d49d01/FLAG60c37f281 [2024-11-02 12:36:38,747 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/data/5fde7d1b3/ce373b59434a4d2aa46a9a17f1d49d01 [2024-11-02 12:36:38,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:36:38,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:36:38,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:38,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:36:38,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:36:38,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:38" (1/1) ... [2024-11-02 12:36:38,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755b3168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:38, skipping insertion in model container [2024-11-02 12:36:38,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:38" (1/1) ... [2024-11-02 12:36:38,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:36:39,114 WARN L251 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_2d9bae6a-74a8-411d-bf4e-3aa392a070df/sv-benchmarks/c/array-fpi/ifeqn1f.c[590,603] [2024-11-02 12:36:39,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:39,175 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:36:39,193 WARN L251 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_2d9bae6a-74a8-411d-bf4e-3aa392a070df/sv-benchmarks/c/array-fpi/ifeqn1f.c[590,603] [2024-11-02 12:36:39,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:39,251 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:36:39,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39 WrapperNode [2024-11-02 12:36:39,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:39,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:39,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:36:39,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:36:39,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,293 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-11-02 12:36:39,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:39,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:36:39,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:36:39,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:36:39,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:36:39,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:36:39,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:36:39,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:36:39,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (1/1) ... [2024-11-02 12:36:39,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:39,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:39,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:36:39,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:36:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:36:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:36:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:36:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:36:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:36:39,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:36:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:36:39,498 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:36:39,501 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:36:39,813 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-02 12:36:39,814 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:36:39,901 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:36:39,901 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-02 12:36:39,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:39 BoogieIcfgContainer [2024-11-02 12:36:39,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:36:39,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:36:39,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:36:39,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:36:39,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:36:38" (1/3) ... [2024-11-02 12:36:39,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e7332f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:39, skipping insertion in model container [2024-11-02 12:36:39,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:39" (2/3) ... [2024-11-02 12:36:39,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e7332f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:39, skipping insertion in model container [2024-11-02 12:36:39,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:39" (3/3) ... [2024-11-02 12:36:39,919 INFO L112 eAbstractionObserver]: Analyzing ICFG ifeqn1f.c [2024-11-02 12:36:39,940 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:36:39,940 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:36:40,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:36:40,039 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3e69f31b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:36:40,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:36:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 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) [2024-11-02 12:36:40,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 12:36:40,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:40,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:40,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:40,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:40,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1983426717, now seen corresponding path program 1 times [2024-11-02 12:36:40,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:40,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518974400] [2024-11-02 12:36:40,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:40,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:40,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:40,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518974400] [2024-11-02 12:36:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518974400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:40,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:40,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:36:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960614567] [2024-11-02 12:36:40,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:40,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:40,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:40,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:40,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:40,493 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-02 12:36:40,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:40,604 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2024-11-02 12:36:40,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:40,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-11-02 12:36:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:40,619 INFO L225 Difference]: With dead ends: 20 [2024-11-02 12:36:40,619 INFO L226 Difference]: Without dead ends: 10 [2024-11-02 12:36:40,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:40,634 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:40,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:36:40,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-02 12:36:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-02 12:36:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2024-11-02 12:36:40,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2024-11-02 12:36:40,721 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2024-11-02 12:36:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:40,722 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2024-11-02 12:36:40,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-02 12:36:40,722 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2024-11-02 12:36:40,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 12:36:40,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:40,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:40,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:36:40,729 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:40,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1487113961, now seen corresponding path program 1 times [2024-11-02 12:36:40,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:40,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030972167] [2024-11-02 12:36:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:40,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 12:36:40,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:40,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030972167] [2024-11-02 12:36:40,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030972167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:40,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:40,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:36:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75220163] [2024-11-02 12:36:40,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:40,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:40,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:40,986 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-02 12:36:41,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:41,028 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-11-02 12:36:41,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:41,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-02 12:36:41,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:41,030 INFO L225 Difference]: With dead ends: 21 [2024-11-02 12:36:41,031 INFO L226 Difference]: Without dead ends: 16 [2024-11-02 12:36:41,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:41,033 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:41,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-02 12:36:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2024-11-02 12:36:41,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-02 12:36:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-11-02 12:36:41,039 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2024-11-02 12:36:41,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:41,040 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-02 12:36:41,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-02 12:36:41,040 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-11-02 12:36:41,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 12:36:41,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:41,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:41,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:36:41,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:41,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:41,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1154978300, now seen corresponding path program 1 times [2024-11-02 12:36:41,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:41,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134014096] [2024-11-02 12:36:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:41,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:36:41,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162685062] [2024-11-02 12:36:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:41,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:41,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:41,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:41,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:36:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:36:41,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:36:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:36:41,281 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:36:41,281 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:36:41,283 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:36:41,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:36:41,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:41,492 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 12:36:41,523 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:36:41,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:36:41 BoogieIcfgContainer [2024-11-02 12:36:41,528 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:36:41,529 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:36:41,529 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:36:41,529 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:36:41,530 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:39" (3/4) ... [2024-11-02 12:36:41,532 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-02 12:36:41,595 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9bae6a-74a8-411d-bf4e-3aa392a070df/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:36:41,596 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:36:41,596 INFO L158 Benchmark]: Toolchain (without parser) took 2844.50ms. Allocated memory was 180.4MB in the beginning and 245.4MB in the end (delta: 65.0MB). Free memory was 135.7MB in the beginning and 194.3MB in the end (delta: -58.7MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-11-02 12:36:41,597 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 180.4MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:36:41,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.91ms. Allocated memory is still 180.4MB. Free memory was 135.4MB in the beginning and 122.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:36:41,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.24ms. Allocated memory is still 180.4MB. Free memory was 122.5MB in the beginning and 121.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:36:41,598 INFO L158 Benchmark]: Boogie Preprocessor took 27.26ms. Allocated memory is still 180.4MB. Free memory was 121.1MB in the beginning and 119.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:36:41,599 INFO L158 Benchmark]: RCFGBuilder took 581.58ms. Allocated memory is still 180.4MB. Free memory was 119.6MB in the beginning and 103.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:36:41,599 INFO L158 Benchmark]: TraceAbstraction took 1620.80ms. Allocated memory was 180.4MB in the beginning and 245.4MB in the end (delta: 65.0MB). Free memory was 103.1MB in the beginning and 196.4MB in the end (delta: -93.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:36:41,599 INFO L158 Benchmark]: Witness Printer took 67.22ms. Allocated memory is still 245.4MB. Free memory was 196.4MB in the beginning and 194.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:36:41,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 180.4MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.91ms. Allocated memory is still 180.4MB. Free memory was 135.4MB in the beginning and 122.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.24ms. Allocated memory is still 180.4MB. Free memory was 122.5MB in the beginning and 121.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.26ms. Allocated memory is still 180.4MB. Free memory was 121.1MB in the beginning and 119.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.58ms. Allocated memory is still 180.4MB. Free memory was 119.6MB in the beginning and 103.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1620.80ms. Allocated memory was 180.4MB in the beginning and 245.4MB in the end (delta: 65.0MB). Free memory was 103.1MB in the beginning and 196.4MB in the end (delta: -93.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.22ms. Allocated memory is still 245.4MB. Free memory was 196.4MB in the beginning and 194.3MB 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; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [N=1, a={-1:0}, b={-2:0}, i=0] [L31] COND TRUE i