./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s12iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/s12iff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire --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 3b77a49aa9e2fe58d44cd30e10a0c2d54049996239a42f9eb129163eea28c3fb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:31,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:32,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:16:32,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:32,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:32,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:32,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:32,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:32,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:32,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:32,145 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:32,146 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:32,146 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:32,147 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:32,148 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:32,148 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:32,149 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:32,150 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:32,150 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:32,151 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:32,152 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:32,153 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:32,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:32,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:32,155 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:32,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:32,156 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:32,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:32,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:32,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:32,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:32,158 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:32,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:32,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:32,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:32,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:32,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:32,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:32,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:32,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:32,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:32,163 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:32,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:32,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:32,164 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:32,165 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:32,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:32,166 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_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b77a49aa9e2fe58d44cd30e10a0c2d54049996239a42f9eb129163eea28c3fb [2023-11-23 21:16:32,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:32,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:32,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:32,505 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:32,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:32,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/array-fpi/s12iff.c [2023-11-23 21:16:35,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:36,085 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:36,086 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/sv-benchmarks/c/array-fpi/s12iff.c [2023-11-23 21:16:36,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/data/4ea879013/552818d84fa9474490f652fa79f223fc/FLAG2c010e18d [2023-11-23 21:16:36,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/data/4ea879013/552818d84fa9474490f652fa79f223fc [2023-11-23 21:16:36,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:36,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:36,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:36,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:36,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:36,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567ab0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36, skipping insertion in model container [2023-11-23 21:16:36,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:36,315 WARN L240 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_02cf77f3-3be7-439b-8c88-571e9f85c293/sv-benchmarks/c/array-fpi/s12iff.c[589,602] [2023-11-23 21:16:36,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:36,354 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:36,368 WARN L240 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_02cf77f3-3be7-439b-8c88-571e9f85c293/sv-benchmarks/c/array-fpi/s12iff.c[589,602] [2023-11-23 21:16:36,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:36,400 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:36,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36 WrapperNode [2023-11-23 21:16:36,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:36,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:36,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:36,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:36,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,445 INFO L138 Inliner]: procedures = 17, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2023-11-23 21:16:36,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:36,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:36,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:36,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:36,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:36,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:36,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:36,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:36,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (1/1) ... [2023-11-23 21:16:36,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:36,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:36,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:36,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:36,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:36,707 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:36,710 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:37,057 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:37,194 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:37,200 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:16:37,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:37 BoogieIcfgContainer [2023-11-23 21:16:37,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:37,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:37,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:37,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:37,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:36" (1/3) ... [2023-11-23 21:16:37,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eeb0502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:37, skipping insertion in model container [2023-11-23 21:16:37,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:36" (2/3) ... [2023-11-23 21:16:37,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eeb0502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:37, skipping insertion in model container [2023-11-23 21:16:37,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:37" (3/3) ... [2023-11-23 21:16:37,223 INFO L112 eAbstractionObserver]: Analyzing ICFG s12iff.c [2023-11-23 21:16:37,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:37,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:37,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:37,335 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=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;@3543b9b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:37,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:37,342 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) [2023-11-23 21:16:37,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:16:37,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:37,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:37,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:37,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:37,362 INFO L85 PathProgramCache]: Analyzing trace with hash -2049683631, now seen corresponding path program 1 times [2023-11-23 21:16:37,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:37,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65103051] [2023-11-23 21:16:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:37,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:37,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:37,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65103051] [2023-11-23 21:16:37,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65103051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:37,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:37,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:37,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372364700] [2023-11-23 21:16:37,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:37,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:37,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:37,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:37,829 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) [2023-11-23 21:16:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:37,892 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2023-11-23 21:16:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:37,896 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 [2023-11-23 21:16:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:37,906 INFO L225 Difference]: With dead ends: 20 [2023-11-23 21:16:37,906 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 21:16:37,910 INFO L412 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 [2023-11-23 21:16:37,915 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:37,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:37,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 21:16:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-23 21:16:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2023-11-23 21:16:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-23 21:16:37,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 7 [2023-11-23 21:16:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:37,958 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-23 21:16:37,959 INFO L496 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) [2023-11-23 21:16:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-23 21:16:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:16:37,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:37,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:37,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:37,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:37,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:37,962 INFO L85 PathProgramCache]: Analyzing trace with hash 708926700, now seen corresponding path program 1 times [2023-11-23 21:16:37,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:37,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841752103] [2023-11-23 21:16:37,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:37,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:16:38,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:38,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841752103] [2023-11-23 21:16:38,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841752103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:38,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:38,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:16:38,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034316722] [2023-11-23 21:16:38,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:38,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:16:38,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:38,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:16:38,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:16:38,120 INFO L87 Difference]: Start difference. First operand 9 states and 11 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) [2023-11-23 21:16:38,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:38,162 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-23 21:16:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:16:38,163 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 [2023-11-23 21:16:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:38,164 INFO L225 Difference]: With dead ends: 15 [2023-11-23 21:16:38,164 INFO L226 Difference]: Without dead ends: 11 [2023-11-23 21:16:38,165 INFO L412 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 [2023-11-23 21:16:38,167 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:38,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:38,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-23 21:16:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-23 21:16:38,173 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) [2023-11-23 21:16:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2023-11-23 21:16:38,174 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2023-11-23 21:16:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:38,174 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-23 21:16:38,175 INFO L496 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) [2023-11-23 21:16:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-23 21:16:38,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:16:38,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:38,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:38,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:38,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:38,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:38,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1446855133, now seen corresponding path program 1 times [2023-11-23 21:16:38,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:38,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508016598] [2023-11-23 21:16:38,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:38,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:38,221 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:16:38,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88868106] [2023-11-23 21:16:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:38,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:38,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:38,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:38,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:38,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:16:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:38,446 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:16:38,446 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:16:38,448 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:16:38,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:16:38,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:38,679 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:16:38,683 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:16:38,705 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 21:16:38,706 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 21:16:38,707 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 21:16:38,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 21:16:38,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 21:16:38,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-23 21:16:38,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-23 21:16:38,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 21:16:38,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem15 could not be translated [2023-11-23 21:16:38,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-23 21:16:38,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:16:38 BoogieIcfgContainer [2023-11-23 21:16:38,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:16:38,739 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:16:38,739 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:16:38,739 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:16:38,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:37" (3/4) ... [2023-11-23 21:16:38,742 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 21:16:38,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 21:16:38,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 21:16:38,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 21:16:38,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 21:16:38,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-23 21:16:38,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem15 could not be translated [2023-11-23 21:16:38,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-23 21:16:38,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-23 21:16:38,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-23 21:16:38,788 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-23 21:16:38,922 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cf77f3-3be7-439b-8c88-571e9f85c293/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:16:38,931 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:16:38,933 INFO L158 Benchmark]: Toolchain (without parser) took 2819.65ms. Allocated memory is still 211.8MB. Free memory was 178.0MB in the beginning and 177.5MB in the end (delta: 511.9kB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2023-11-23 21:16:38,934 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:16:38,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.43ms. Allocated memory is still 211.8MB. Free memory was 177.4MB in the beginning and 166.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:16:38,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.38ms. Allocated memory is still 211.8MB. Free memory was 166.3MB in the beginning and 165.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:16:38,937 INFO L158 Benchmark]: Boogie Preprocessor took 35.36ms. Allocated memory is still 211.8MB. Free memory was 165.0MB in the beginning and 163.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:38,938 INFO L158 Benchmark]: RCFGBuilder took 720.76ms. Allocated memory is still 211.8MB. Free memory was 163.5MB in the beginning and 146.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 21:16:38,938 INFO L158 Benchmark]: TraceAbstraction took 1527.19ms. Allocated memory is still 211.8MB. Free memory was 146.1MB in the beginning and 100.0MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:38,939 INFO L158 Benchmark]: Witness Printer took 193.75ms. Allocated memory is still 211.8MB. Free memory was 100.0MB in the beginning and 177.5MB in the end (delta: -77.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:16:38,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.43ms. Allocated memory is still 211.8MB. Free memory was 177.4MB in the beginning and 166.3MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.38ms. Allocated memory is still 211.8MB. Free memory was 166.3MB in the beginning and 165.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.36ms. Allocated memory is still 211.8MB. Free memory was 165.0MB in the beginning and 163.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 720.76ms. Allocated memory is still 211.8MB. Free memory was 163.5MB in the beginning and 146.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1527.19ms. Allocated memory is still 211.8MB. Free memory was 146.1MB in the beginning and 100.0MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 193.75ms. Allocated memory is still 211.8MB. Free memory was 100.0MB in the beginning and 177.5MB in the end (delta: -77.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=1, a={-1:0}, i=0, sum={4:0}] [L32] COND TRUE i