./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_init9_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/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_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_init9_ground-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 477192436c119b4e74e1ff9bea9de738ba755c58e7908ace744a87a82dccf838 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:24:04,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:24:04,250 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 11:24:04,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:24:04,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:24:04,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:24:04,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:24:04,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:24:04,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:24:04,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:24:04,298 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:24:04,299 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:24:04,299 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:24:04,300 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:24:04,300 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:24:04,300 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:24:04,300 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:24:04,301 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:24:04,301 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:24:04,301 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:24:04,302 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:24:04,305 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:24:04,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:24:04,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:24:04,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:24:04,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:24:04,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:24:04,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:24:04,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:24:04,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:24:04,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:24:04,311 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:24:04,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 11:24:04,312 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:24:04,312 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:24:04,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:24:04,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:24:04,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:24:04,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:24:04,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:24:04,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:24:04,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:24:04,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:24:04,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:24:04,317 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:24:04,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:24:04,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:24:04,317 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:24:04,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:24:04,318 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_aff84946-5628-47e7-97ca-02c21cc7698f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 477192436c119b4e74e1ff9bea9de738ba755c58e7908ace744a87a82dccf838 [2024-11-02 11:24:04,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:24:04,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:24:04,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:24:04,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:24:04,640 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:24:04,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/array-examples/standard_init9_ground-2.i Unable to find full path for "g++" [2024-11-02 11:24:06,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:24:06,811 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:24:06,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/sv-benchmarks/c/array-examples/standard_init9_ground-2.i [2024-11-02 11:24:06,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/data/5049d9a19/a8a6ab23889843e7a248c5271d90698b/FLAG76c1c73db [2024-11-02 11:24:06,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/data/5049d9a19/a8a6ab23889843e7a248c5271d90698b [2024-11-02 11:24:06,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:24:06,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:24:06,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:24:06,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:24:06,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:24:06,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:24:06" (1/1) ... [2024-11-02 11:24:06,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ce7b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:06, skipping insertion in model container [2024-11-02 11:24:06,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:24:06" (1/1) ... [2024-11-02 11:24:06,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:24:07,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:24:07,120 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:24:07,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:24:07,186 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:24:07,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07 WrapperNode [2024-11-02 11:24:07,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:24:07,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:24:07,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:24:07,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:24:07,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,252 INFO L138 Inliner]: procedures = 15, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2024-11-02 11:24:07,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:24:07,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:24:07,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:24:07,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:24:07,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:24:07,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:24:07,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:24:07,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:24:07,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (1/1) ... [2024-11-02 11:24:07,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:24:07,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:24:07,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:24:07,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:24:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:24:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:24:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:24:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:24:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:24:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:24:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:24:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:24:07,486 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:24:07,489 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:24:07,827 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-02 11:24:07,827 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:24:07,922 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:24:07,922 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-02 11:24:07,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:24:07 BoogieIcfgContainer [2024-11-02 11:24:07,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:24:07,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:24:07,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:24:07,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:24:07,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:24:06" (1/3) ... [2024-11-02 11:24:07,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deaf9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:24:07, skipping insertion in model container [2024-11-02 11:24:07,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:24:07" (2/3) ... [2024-11-02 11:24:07,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deaf9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:24:07, skipping insertion in model container [2024-11-02 11:24:07,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:24:07" (3/3) ... [2024-11-02 11:24:07,933 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_init9_ground-2.i [2024-11-02 11:24:07,954 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:24:07,955 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-02 11:24:08,041 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:24:08,048 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;@4545cc52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:24:08,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-02 11:24:08,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 31 states have (on average 1.967741935483871) internal successors, (61), 51 states have internal predecessors, (61), 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 11:24:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 11:24:08,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:08,080 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 11:24:08,081 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-02 11:24:08,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:08,091 INFO L85 PathProgramCache]: Analyzing trace with hash 219461, now seen corresponding path program 1 times [2024-11-02 11:24:08,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:08,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425165164] [2024-11-02 11:24:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:08,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:08,395 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 11:24:08,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:08,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425165164] [2024-11-02 11:24:08,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425165164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:08,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:24:08,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 11:24:08,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926699122] [2024-11-02 11:24:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:08,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:24:08,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:24:08,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:24:08,444 INFO L87 Difference]: Start difference. First operand has 52 states, 31 states have (on average 1.967741935483871) internal successors, (61), 51 states have internal predecessors, (61), 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, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 11:24:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:08,797 INFO L93 Difference]: Finished difference Result 127 states and 169 transitions. [2024-11-02 11:24:08,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:24:08,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-02 11:24:08,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:08,814 INFO L225 Difference]: With dead ends: 127 [2024-11-02 11:24:08,814 INFO L226 Difference]: Without dead ends: 78 [2024-11-02 11:24:08,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 11:24:08,821 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:08,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:24:08,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-02 11:24:08,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-02 11:24:08,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.5) internal successors, (87), 77 states have internal predecessors, (87), 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 11:24:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2024-11-02 11:24:08,869 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 3 [2024-11-02 11:24:08,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:08,870 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2024-11-02 11:24:08,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 11:24:08,871 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2024-11-02 11:24:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 11:24:08,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:08,872 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-11-02 11:24:08,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:24:08,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-02 11:24:08,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:08,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2051927382, now seen corresponding path program 1 times [2024-11-02 11:24:08,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:08,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700661205] [2024-11-02 11:24:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:08,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:24:08,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700661205] [2024-11-02 11:24:08,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700661205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:24:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748375540] [2024-11-02 11:24:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:08,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:08,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:24:08,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:24:08,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:24:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:09,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:24:09,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:24:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:24:09,077 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:24:09,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748375540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:09,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 11:24:09,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2024-11-02 11:24:09,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417022896] [2024-11-02 11:24:09,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:09,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:24:09,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:09,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:24:09,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:24:09,082 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 11:24:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:09,310 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2024-11-02 11:24:09,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:24:09,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-02 11:24:09,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:09,312 INFO L225 Difference]: With dead ends: 78 [2024-11-02 11:24:09,313 INFO L226 Difference]: Without dead ends: 69 [2024-11-02 11:24:09,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:24:09,314 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 33 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:09,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 8 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:24:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-02 11:24:09,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-02 11:24:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 68 states have internal predecessors, (78), 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 11:24:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2024-11-02 11:24:09,335 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 6 [2024-11-02 11:24:09,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:09,335 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2024-11-02 11:24:09,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 11:24:09,335 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2024-11-02 11:24:09,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 11:24:09,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:09,336 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-11-02 11:24:09,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 11:24:09,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:09,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-02 11:24:09,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash 814760643, now seen corresponding path program 1 times [2024-11-02 11:24:09,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:09,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523871814] [2024-11-02 11:24:09,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:09,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:24:09,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:09,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523871814] [2024-11-02 11:24:09,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523871814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:09,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:24:09,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:24:09,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887279476] [2024-11-02 11:24:09,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:09,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:24:09,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:09,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:24:09,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:24:09,615 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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 11:24:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:09,746 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2024-11-02 11:24:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:24:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) 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 11:24:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:09,748 INFO L225 Difference]: With dead ends: 69 [2024-11-02 11:24:09,748 INFO L226 Difference]: Without dead ends: 60 [2024-11-02 11:24:09,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 11:24:09,752 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:09,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:24:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-02 11:24:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 42. [2024-11-02 11:24:09,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.275) internal successors, (51), 41 states have internal predecessors, (51), 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 11:24:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-02 11:24:09,763 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 7 [2024-11-02 11:24:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:09,763 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-02 11:24:09,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) 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 11:24:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-02 11:24:09,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-02 11:24:09,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:09,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:24:09,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:24:09,766 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-02 11:24:09,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash -539620527, now seen corresponding path program 1 times [2024-11-02 11:24:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:09,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999359468] [2024-11-02 11:24:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:09,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 11:24:09,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:09,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999359468] [2024-11-02 11:24:09,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999359468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:24:09,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461628526] [2024-11-02 11:24:09,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:09,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:09,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:24:09,971 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:24:09,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 11:24:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:10,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:24:10,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:24:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 11:24:10,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:24:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 11:24:10,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461628526] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:24:10,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1350777363] [2024-11-02 11:24:10,183 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-02 11:24:10,184 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:24:10,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 11:24:10,196 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 11:24:10,197 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 11:24:11,660 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 11:24:12,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1350777363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:12,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:24:12,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [3, 3, 3] total 16 [2024-11-02 11:24:12,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238631972] [2024-11-02 11:24:12,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:12,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 11:24:12,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:12,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 11:24:12,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=206, Unknown=1, NotChecked=0, Total=272 [2024-11-02 11:24:12,132 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:24:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:12,672 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2024-11-02 11:24:12,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-02 11:24:12,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-02 11:24:12,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:12,675 INFO L225 Difference]: With dead ends: 47 [2024-11-02 11:24:12,676 INFO L226 Difference]: Without dead ends: 45 [2024-11-02 11:24:12,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 97 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=206, Unknown=1, NotChecked=0, Total=272 [2024-11-02 11:24:12,677 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 19 mSolverCounterUnsat, 60 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 60 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:12,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 247 Invalid, 60 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 11:24:12,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-02 11:24:12,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-02 11:24:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.255813953488372) internal successors, (54), 44 states have internal predecessors, (54), 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 11:24:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2024-11-02 11:24:12,697 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 39 [2024-11-02 11:24:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:12,699 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2024-11-02 11:24:12,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:24:12,701 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2024-11-02 11:24:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-02 11:24:12,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:24:12,703 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:24:12,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 11:24:12,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:12,908 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-02 11:24:12,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:24:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash 227683742, now seen corresponding path program 1 times [2024-11-02 11:24:12,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:24:12,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649137407] [2024-11-02 11:24:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:24:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-02 11:24:13,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:24:13,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649137407] [2024-11-02 11:24:13,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649137407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:24:13,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163667760] [2024-11-02 11:24:13,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:24:13,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:13,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:24:13,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:24:13,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 11:24:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:24:13,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:24:13,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:24:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-02 11:24:13,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:24:13,262 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-02 11:24:13,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163667760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:24:13,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [812774424] [2024-11-02 11:24:13,266 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-02 11:24:13,266 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 11:24:13,267 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 11:24:13,267 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 11:24:13,267 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 11:24:14,246 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 11:24:14,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [812774424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:24:14,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:24:14,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [3, 3, 3] total 16 [2024-11-02 11:24:14,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548305981] [2024-11-02 11:24:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:24:14,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 11:24:14,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:24:14,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 11:24:14,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=206, Unknown=1, NotChecked=0, Total=272 [2024-11-02 11:24:14,749 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 11:24:15,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:24:15,229 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-11-02 11:24:15,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-02 11:24:15,230 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 42 [2024-11-02 11:24:15,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:24:15,230 INFO L225 Difference]: With dead ends: 45 [2024-11-02 11:24:15,231 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 11:24:15,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 106 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=206, Unknown=1, NotChecked=0, Total=272 [2024-11-02 11:24:15,232 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 19 mSolverCounterUnsat, 60 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 60 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 11:24:15,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 234 Invalid, 60 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 11:24:15,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 11:24:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 11:24:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 11:24:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 11:24:15,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2024-11-02 11:24:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:24:15,235 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 11:24:15,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 11:24:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 11:24:15,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 11:24:15,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-11-02 11:24:15,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-11-02 11:24:15,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-11-02 11:24:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-11-02 11:24:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-11-02 11:24:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-11-02 11:24:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-11-02 11:24:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-11-02 11:24:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2024-11-02 11:24:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2024-11-02 11:24:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2024-11-02 11:24:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2024-11-02 11:24:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-11-02 11:24:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-11-02 11:24:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-11-02 11:24:15,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-11-02 11:24:15,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-11-02 11:24:15,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-11-02 11:24:15,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-11-02 11:24:15,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-11-02 11:24:15,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 11:24:15,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:24:15,446 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-02 11:24:15,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 11:24:15,704 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:24:15,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,720 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,720 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,723 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,723 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,723 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,723 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,724 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,724 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,724 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,725 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,725 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,725 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,725 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,726 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,726 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,728 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,728 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,728 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,729 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,729 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,729 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,730 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,730 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,730 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,730 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,731 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,731 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,731 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,732 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,732 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,732 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,733 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,734 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,734 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,734 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,735 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,735 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,735 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,736 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,736 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,736 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,736 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-02 11:24:15,737 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!base [2024-11-02 11:24:15,737 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#a~0!offset [2024-11-02 11:24:15,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:24:15 BoogieIcfgContainer [2024-11-02 11:24:15,738 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:24:15,739 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:24:15,739 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:24:15,740 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:24:15,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:24:07" (3/4) ... [2024-11-02 11:24:15,748 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 11:24:15,755 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-02 11:24:15,755 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-02 11:24:15,756 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 11:24:15,756 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 11:24:15,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 11:24:15,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 11:24:15,880 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:24:15,880 INFO L158 Benchmark]: Toolchain (without parser) took 9037.08ms. Allocated memory was 155.2MB in the beginning and 232.8MB in the end (delta: 77.6MB). Free memory was 119.7MB in the beginning and 196.8MB in the end (delta: -77.1MB). Peak memory consumption was 132.2MB. Max. memory is 16.1GB. [2024-11-02 11:24:15,880 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:24:15,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.98ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 106.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 11:24:15,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.07ms. Allocated memory is still 155.2MB. Free memory was 106.2MB in the beginning and 104.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:24:15,881 INFO L158 Benchmark]: Boogie Preprocessor took 58.19ms. Allocated memory is still 155.2MB. Free memory was 104.5MB in the beginning and 103.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:24:15,882 INFO L158 Benchmark]: RCFGBuilder took 609.35ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 83.6MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 11:24:15,882 INFO L158 Benchmark]: TraceAbstraction took 7813.23ms. Allocated memory was 155.2MB in the beginning and 232.8MB in the end (delta: 77.6MB). Free memory was 82.8MB in the beginning and 70.1MB in the end (delta: 12.8MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. [2024-11-02 11:24:15,882 INFO L158 Benchmark]: Witness Printer took 140.53ms. Allocated memory is still 232.8MB. Free memory was 70.1MB in the beginning and 196.8MB in the end (delta: -126.7MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2024-11-02 11:24:15,884 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 102.8MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.98ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 106.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.07ms. Allocated memory is still 155.2MB. Free memory was 106.2MB in the beginning and 104.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.19ms. Allocated memory is still 155.2MB. Free memory was 104.5MB in the beginning and 103.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 609.35ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 83.6MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7813.23ms. Allocated memory was 155.2MB in the beginning and 232.8MB in the end (delta: 77.6MB). Free memory was 82.8MB in the beginning and 70.1MB in the end (delta: 12.8MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. * Witness Printer took 140.53ms. Allocated memory is still 232.8MB. Free memory was 70.1MB in the beginning and 196.8MB in the end (delta: -126.7MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#a~0!offset * 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 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 120 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 729 IncrementalHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 32 mSDtfsCounter, 729 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 208 SyntacticMatches, 12 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=1, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 SizeOfPredicates, 0 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 59/67 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 62, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 250, TOOLS_POST_TIME: 1.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 250, TOOLS_QUANTIFIERELIM_TIME: 1.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 448, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 30, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 38, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 57, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 62, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 19, LOOP_SUMMARIZER_CACHE_MISSES: 19, LOOP_SUMMARIZER_OVERALL_TIME: 1.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 57, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.2s, DAG_COMPRESSION_PROCESSED_NODES: 12581, DAG_COMPRESSION_RETAINED_NODES: 245, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (0 <= x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) RESULT: Ultimate proved your program to be correct! [2024-11-02 11:24:15,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aff84946-5628-47e7-97ca-02c21cc7698f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE