./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire --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 64bit --witnessprinter.graph.data.programhash 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:43,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:43,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:32:43,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:43,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:43,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:43,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:43,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:43,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:43,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:43,661 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:43,662 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:43,663 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:43,663 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:32:43,664 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:43,665 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:43,665 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:32:43,666 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:32:43,667 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:43,668 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:32:43,668 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:32:43,669 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:32:43,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:43,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:43,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:32:43,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:43,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:43,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:43,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:43,674 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:32:43,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:32:43,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:43,676 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:43,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:43,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:43,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:43,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:43,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:43,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:43,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:43,679 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:32:43,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:32:43,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:43,703 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:43,704 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:43,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:43,704 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_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc [2023-11-23 21:32:44,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:44,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:44,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:44,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:44,160 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:44,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/termination-dietlibc/strstr.i [2023-11-23 21:32:47,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:47,809 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:47,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/sv-benchmarks/c/termination-dietlibc/strstr.i [2023-11-23 21:32:47,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/data/b54577544/a4d1b4b6f744488eb73c7efb62ea7a04/FLAGa8af302cb [2023-11-23 21:32:47,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/data/b54577544/a4d1b4b6f744488eb73c7efb62ea7a04 [2023-11-23 21:32:47,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:47,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:47,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:47,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:47,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:47,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:47" (1/1) ... [2023-11-23 21:32:47,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288d8476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:47, skipping insertion in model container [2023-11-23 21:32:47,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:47" (1/1) ... [2023-11-23 21:32:47,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:48,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:48,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:48,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:48,525 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:48,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48 WrapperNode [2023-11-23 21:32:48,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:48,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:48,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:48,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:48,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,617 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 159 [2023-11-23 21:32:48,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:48,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:48,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:48,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:48,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:48,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:48,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:48,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:48,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (1/1) ... [2023-11-23 21:32:48,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:48,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:48,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:48,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:32:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:32:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:32:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-11-23 21:32:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2023-11-23 21:32:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:32:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:48,935 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:48,937 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:49,270 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:49,303 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:49,303 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 21:32:49,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:49 BoogieIcfgContainer [2023-11-23 21:32:49,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:49,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:49,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:49,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:49,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:47" (1/3) ... [2023-11-23 21:32:49,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32807b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:49, skipping insertion in model container [2023-11-23 21:32:49,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:48" (2/3) ... [2023-11-23 21:32:49,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32807b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:49, skipping insertion in model container [2023-11-23 21:32:49,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:49" (3/3) ... [2023-11-23 21:32:49,315 INFO L112 eAbstractionObserver]: Analyzing ICFG strstr.i [2023-11-23 21:32:49,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:49,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-23 21:32:49,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:49,397 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7757c781, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:49,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-23 21:32:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 56 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:32:49,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 21:32:49,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:49,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 21:32:49,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:49,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash 189256, now seen corresponding path program 1 times [2023-11-23 21:32:49,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:49,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823636340] [2023-11-23 21:32:49,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:49,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:49,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:49,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823636340] [2023-11-23 21:32:49,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823636340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:49,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:49,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:32:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527102752] [2023-11-23 21:32:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:49,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:49,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:49,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:49,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:49,720 INFO L87 Difference]: Start difference. First operand has 60 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 56 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2023-11-23 21:32:49,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:49,817 INFO L93 Difference]: Finished difference Result 107 states and 143 transitions. [2023-11-23 21:32:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:49,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2023-11-23 21:32:49,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:49,828 INFO L225 Difference]: With dead ends: 107 [2023-11-23 21:32:49,829 INFO L226 Difference]: Without dead ends: 29 [2023-11-23 21:32:49,834 INFO L412 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 [2023-11-23 21:32:49,839 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 53 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:49,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 64 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-23 21:32:49,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-23 21:32:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2023-11-23 21:32:49,880 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 3 [2023-11-23 21:32:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:49,881 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-23 21:32:49,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2023-11-23 21:32:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2023-11-23 21:32:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:32:49,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:49,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:32:49,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:32:49,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:49,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:49,885 INFO L85 PathProgramCache]: Analyzing trace with hash 5867001, now seen corresponding path program 1 times [2023-11-23 21:32:49,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:49,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443598417] [2023-11-23 21:32:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:49,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:50,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:50,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443598417] [2023-11-23 21:32:50,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443598417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:50,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:50,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:32:50,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357157548] [2023-11-23 21:32:50,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:50,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:50,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:50,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:50,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:50,006 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:50,032 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2023-11-23 21:32:50,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:50,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-23 21:32:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:50,036 INFO L225 Difference]: With dead ends: 29 [2023-11-23 21:32:50,037 INFO L226 Difference]: Without dead ends: 27 [2023-11-23 21:32:50,042 INFO L412 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 [2023-11-23 21:32:50,045 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:50,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 19 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:50,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-23 21:32:50,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-23 21:32:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-11-23 21:32:50,053 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 4 [2023-11-23 21:32:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:50,053 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-11-23 21:32:50,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-11-23 21:32:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:32:50,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:50,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:32:50,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:32:50,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:50,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:50,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1343226815, now seen corresponding path program 1 times [2023-11-23 21:32:50,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:50,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706007727] [2023-11-23 21:32:50,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:50,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706007727] [2023-11-23 21:32:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706007727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:50,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:50,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:50,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281573600] [2023-11-23 21:32:50,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:50,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:32:50,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:50,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:32:50,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:32:50,179 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-23 21:32:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:50,248 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2023-11-23 21:32:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:32:50,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2023-11-23 21:32:50,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:50,251 INFO L225 Difference]: With dead ends: 35 [2023-11-23 21:32:50,252 INFO L226 Difference]: Without dead ends: 33 [2023-11-23 21:32:50,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:32:50,253 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:50,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 63 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:50,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-23 21:32:50,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2023-11-23 21:32:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-23 21:32:50,267 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 6 [2023-11-23 21:32:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:50,267 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-23 21:32:50,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-23 21:32:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-23 21:32:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:32:50,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:50,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:50,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:32:50,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:50,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash 585684652, now seen corresponding path program 1 times [2023-11-23 21:32:50,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:50,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595843713] [2023-11-23 21:32:50,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:50,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:50,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595843713] [2023-11-23 21:32:50,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595843713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:50,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:50,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:32:50,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612217604] [2023-11-23 21:32:50,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:50,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:50,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:50,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:50,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:50,324 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:50,343 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-23 21:32:50,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:50,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-23 21:32:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:50,345 INFO L225 Difference]: With dead ends: 32 [2023-11-23 21:32:50,345 INFO L226 Difference]: Without dead ends: 30 [2023-11-23 21:32:50,345 INFO L412 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 [2023-11-23 21:32:50,347 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:50,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:50,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-23 21:32:50,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-23 21:32:50,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2023-11-23 21:32:50,353 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 10 [2023-11-23 21:32:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:50,353 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2023-11-23 21:32:50,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2023-11-23 21:32:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:32:50,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:50,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:50,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:32:50,355 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:50,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash 976355124, now seen corresponding path program 1 times [2023-11-23 21:32:50,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:50,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000728432] [2023-11-23 21:32:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:50,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:50,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:50,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000728432] [2023-11-23 21:32:50,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000728432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:50,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:50,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:32:50,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100312626] [2023-11-23 21:32:50,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:50,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:50,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:50,406 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:50,432 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2023-11-23 21:32:50,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:50,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-23 21:32:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:50,435 INFO L225 Difference]: With dead ends: 30 [2023-11-23 21:32:50,435 INFO L226 Difference]: Without dead ends: 25 [2023-11-23 21:32:50,436 INFO L412 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 [2023-11-23 21:32:50,437 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:50,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:50,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-23 21:32:50,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-23 21:32:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-23 21:32:50,443 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 11 [2023-11-23 21:32:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:50,443 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-23 21:32:50,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-11-23 21:32:50,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:32:50,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:50,451 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-23 21:32:50,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:32:50,452 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:50,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1565252267, now seen corresponding path program 1 times [2023-11-23 21:32:50,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:50,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616388842] [2023-11-23 21:32:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:50,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:50,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:50,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:50,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616388842] [2023-11-23 21:32:50,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616388842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:32:50,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109266738] [2023-11-23 21:32:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:50,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:50,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:50,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:50,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:32:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:50,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:32:50,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:50,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:50,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:50,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109266738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:50,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:32:50,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 21:32:50,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947094773] [2023-11-23 21:32:50,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:50,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:32:50,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:50,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:32:50,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:32:50,810 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:50,865 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-11-23 21:32:50,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:32:50,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-23 21:32:50,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:50,866 INFO L225 Difference]: With dead ends: 26 [2023-11-23 21:32:50,866 INFO L226 Difference]: Without dead ends: 25 [2023-11-23 21:32:50,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:32:50,868 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:50,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 68 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:50,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-23 21:32:50,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-11-23 21:32:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-11-23 21:32:50,874 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 11 [2023-11-23 21:32:50,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:50,875 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-11-23 21:32:50,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-23 21:32:50,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:32:50,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:50,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:32:50,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:51,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 21:32:51,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:51,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:51,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1278179945, now seen corresponding path program 1 times [2023-11-23 21:32:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:51,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12747175] [2023-11-23 21:32:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:51,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:51,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12747175] [2023-11-23 21:32:51,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12747175] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:32:51,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120805037] [2023-11-23 21:32:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:51,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:51,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:51,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:51,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:32:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:51,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:32:51,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:51,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:32:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:51,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120805037] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:32:51,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [172100679] [2023-11-23 21:32:51,473 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-23 21:32:51,473 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:32:51,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:32:51,484 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:32:51,484 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:32:52,134 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:32:52,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [172100679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:52,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:32:52,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 14 [2023-11-23 21:32:52,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377659205] [2023-11-23 21:32:52,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:52,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:32:52,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:52,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:32:52,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:32:52,453 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:52,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:52,586 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2023-11-23 21:32:52,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:32:52,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-23 21:32:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:52,588 INFO L225 Difference]: With dead ends: 24 [2023-11-23 21:32:52,588 INFO L226 Difference]: Without dead ends: 23 [2023-11-23 21:32:52,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:32:52,589 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:52,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 13 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:52,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-23 21:32:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2023-11-23 21:32:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2023-11-23 21:32:52,594 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2023-11-23 21:32:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:52,595 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-11-23 21:32:52,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-11-23 21:32:52,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:32:52,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:52,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:52,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:52,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 21:32:52,797 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:52,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1974409755, now seen corresponding path program 1 times [2023-11-23 21:32:52,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:52,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656304990] [2023-11-23 21:32:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:52,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:52,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:52,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:52,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656304990] [2023-11-23 21:32:52,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656304990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:52,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:52,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:52,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487608724] [2023-11-23 21:32:52,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:52,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:32:52,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:52,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:32:52,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:32:52,859 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:52,885 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-11-23 21:32:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:32:52,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 21:32:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:52,886 INFO L225 Difference]: With dead ends: 25 [2023-11-23 21:32:52,886 INFO L226 Difference]: Without dead ends: 23 [2023-11-23 21:32:52,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:32:52,888 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:52,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 40 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-23 21:32:52,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-23 21:32:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:52,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-11-23 21:32:52,893 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2023-11-23 21:32:52,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:52,894 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-11-23 21:32:52,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:52,894 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-11-23 21:32:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 21:32:52,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:52,895 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:52,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:32:52,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:52,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1372851417, now seen corresponding path program 1 times [2023-11-23 21:32:52,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:52,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990885532] [2023-11-23 21:32:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:52,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:53,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:53,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990885532] [2023-11-23 21:32:53,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990885532] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:32:53,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79972051] [2023-11-23 21:32:53,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:53,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:53,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:53,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:53,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:32:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:53,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:32:53,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:53,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:53,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79972051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:53,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:32:53,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 21:32:53,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193984664] [2023-11-23 21:32:53,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:53,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:32:53,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:53,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:32:53,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:32:53,135 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:53,184 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-11-23 21:32:53,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:32:53,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2023-11-23 21:32:53,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:53,186 INFO L225 Difference]: With dead ends: 23 [2023-11-23 21:32:53,187 INFO L226 Difference]: Without dead ends: 22 [2023-11-23 21:32:53,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:32:53,190 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:53,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 62 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-23 21:32:53,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-23 21:32:53,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-11-23 21:32:53,201 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 18 [2023-11-23 21:32:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:53,202 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-23 21:32:53,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-11-23 21:32:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:32:53,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:53,205 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:53,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:53,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 21:32:53,421 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:53,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash -391278926, now seen corresponding path program 1 times [2023-11-23 21:32:53,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:53,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062062699] [2023-11-23 21:32:53,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:53,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:53,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:53,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062062699] [2023-11-23 21:32:53,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062062699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:32:53,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154016412] [2023-11-23 21:32:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:53,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:53,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:53,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:53,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:32:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:53,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:32:53,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:53,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:32:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:53,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154016412] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:32:53,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1762798436] [2023-11-23 21:32:53,740 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-23 21:32:53,740 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:32:53,741 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:32:53,741 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:32:53,741 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:32:54,590 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:32:55,099 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1020#(and (<= 2 |ULTIMATE.start_main_#t~malloc20#1.base|) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~malloc20#1.offset| 0) (= |ULTIMATE.start_main_~in_len~0#1| 1) (<= 2 |ULTIMATE.start_main_~out_len~0#1|) (= |ULTIMATE.start_main_~hay~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~hay~0#1.base|) (= |ULTIMATE.start_main_#t~malloc24#1.offset| 0) (= |ULTIMATE.start_main_~needle~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~needle~0#1.base|) (<= |ULTIMATE.start_main_~out_len~0#1| 2147483647) (<= 2147483647 |ULTIMATE.start_main_#t~post25#1|) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= 2 |ULTIMATE.start_main_#t~malloc24#1.base|))' at error location [2023-11-23 21:32:55,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:32:55,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:32:55,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-23 21:32:55,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851932972] [2023-11-23 21:32:55,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:32:55,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:32:55,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:55,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:32:55,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:32:55,101 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:55,210 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2023-11-23 21:32:55,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:32:55,211 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 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 19 [2023-11-23 21:32:55,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:55,214 INFO L225 Difference]: With dead ends: 38 [2023-11-23 21:32:55,214 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 21:32:55,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2023-11-23 21:32:55,216 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:55,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 88 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 21:32:55,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-23 21:32:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2023-11-23 21:32:55,231 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 19 [2023-11-23 21:32:55,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:55,231 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2023-11-23 21:32:55,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:32:55,232 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2023-11-23 21:32:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 21:32:55,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:55,241 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:55,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:55,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:32:55,442 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 21:32:55,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 273759280, now seen corresponding path program 2 times [2023-11-23 21:32:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:55,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337786907] [2023-11-23 21:32:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:55,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:32:55,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337786907] [2023-11-23 21:32:55,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337786907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:32:55,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443135365] [2023-11-23 21:32:55,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:32:55,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:55,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:55,664 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:55,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:32:55,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-23 21:32:55,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:32:55,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:32:55,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:55,802 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:32:55,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:32:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:32:55,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443135365] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:32:55,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [444309353] [2023-11-23 21:32:55,872 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-23 21:32:55,872 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:32:55,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:32:55,873 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:32:55,873 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:32:56,750 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:32:58,805 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1337#(and (<= 2 |ULTIMATE.start_main_#t~malloc20#1.base|) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~malloc20#1.offset| 0) (= |ULTIMATE.start_main_~in_len~0#1| 1) (<= 2 |ULTIMATE.start_main_~out_len~0#1|) (= |ULTIMATE.start_main_~hay~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~hay~0#1.base|) (= |ULTIMATE.start_main_#t~malloc24#1.offset| 0) (= |ULTIMATE.start_main_~needle~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~needle~0#1.base|) (<= |ULTIMATE.start_main_~out_len~0#1| 2147483647) (<= 2147483647 |ULTIMATE.start_main_#t~post25#1|) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= 2 |ULTIMATE.start_main_#t~malloc24#1.base|))' at error location [2023-11-23 21:32:58,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:32:58,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:32:58,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 15 [2023-11-23 21:32:58,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450027852] [2023-11-23 21:32:58,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:32:58,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 21:32:58,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:58,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 21:32:58,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2023-11-23 21:32:58,808 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 16 states, 15 states have (on average 3.6) internal successors, (54), 16 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) [2023-11-23 21:32:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:59,053 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2023-11-23 21:32:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 21:32:59,054 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 16 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) Word has length 34 [2023-11-23 21:32:59,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:59,054 INFO L225 Difference]: With dead ends: 42 [2023-11-23 21:32:59,055 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:32:59,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 74 SyntacticMatches, 15 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 21:32:59,057 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:59,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 62 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:32:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:32:59,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:32:59,058 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) [2023-11-23 21:32:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:32:59,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2023-11-23 21:32:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:59,059 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:32:59,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 16 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) [2023-11-23 21:32:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:32:59,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:32:59,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-11-23 21:32:59,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-11-23 21:32:59,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-11-23 21:32:59,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-11-23 21:32:59,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-11-23 21:32:59,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-11-23 21:32:59,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-11-23 21:32:59,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-11-23 21:32:59,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2023-11-23 21:32:59,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-11-23 21:32:59,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-11-23 21:32:59,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-11-23 21:32:59,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-11-23 21:32:59,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-11-23 21:32:59,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:59,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 21:32:59,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:32:59,422 INFO L899 garLoopResultBuilder]: For program point strlenEXIT(lines 507 512) no Hoare annotation was computed. [2023-11-23 21:32:59,422 INFO L899 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2023-11-23 21:32:59,422 INFO L899 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2023-11-23 21:32:59,422 INFO L902 garLoopResultBuilder]: At program point L510-4(line 510) the Hoare annotation is: true [2023-11-23 21:32:59,422 INFO L899 garLoopResultBuilder]: For program point strlenFINAL(lines 507 512) no Hoare annotation was computed. [2023-11-23 21:32:59,423 INFO L899 garLoopResultBuilder]: For program point L510-5(line 510) no Hoare annotation was computed. [2023-11-23 21:32:59,423 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 507 512) the Hoare annotation is: true [2023-11-23 21:32:59,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-23 21:32:59,423 INFO L899 garLoopResultBuilder]: For program point strstr_returnLabel#1(lines 526 539) no Hoare annotation was computed. [2023-11-23 21:32:59,423 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2023-11-23 21:32:59,424 INFO L899 garLoopResultBuilder]: For program point L556(line 556) no Hoare annotation was computed. [2023-11-23 21:32:59,424 INFO L899 garLoopResultBuilder]: For program point L556-1(line 556) no Hoare annotation was computed. [2023-11-23 21:32:59,424 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 540 558) no Hoare annotation was computed. [2023-11-23 21:32:59,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-23 21:32:59,424 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2023-11-23 21:32:59,424 INFO L899 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2023-11-23 21:32:59,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-23 21:32:59,425 INFO L895 garLoopResultBuilder]: At program point L532-3(lines 532 537) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~in_len~0#1|) [2023-11-23 21:32:59,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-23 21:32:59,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-23 21:32:59,425 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2023-11-23 21:32:59,426 INFO L899 garLoopResultBuilder]: For program point L533-2(lines 533 535) no Hoare annotation was computed. [2023-11-23 21:32:59,426 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-23 21:32:59,426 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:32:59,426 INFO L899 garLoopResultBuilder]: For program point L550(line 550) no Hoare annotation was computed. [2023-11-23 21:32:59,426 INFO L899 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2023-11-23 21:32:59,426 INFO L899 garLoopResultBuilder]: For program point memcmp_returnLabel#1(lines 513 525) no Hoare annotation was computed. [2023-11-23 21:32:59,427 INFO L899 garLoopResultBuilder]: For program point L534(lines 526 539) no Hoare annotation was computed. [2023-11-23 21:32:59,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2023-11-23 21:32:59,427 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 518 523) no Hoare annotation was computed. [2023-11-23 21:32:59,427 INFO L895 garLoopResultBuilder]: At program point L518-3(lines 518 523) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~in_len~0#1|) [2023-11-23 21:32:59,427 INFO L899 garLoopResultBuilder]: For program point L518-4(lines 518 523) no Hoare annotation was computed. [2023-11-23 21:32:59,427 INFO L895 garLoopResultBuilder]: At program point L527(line 527) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~in_len~0#1|) [2023-11-23 21:32:59,428 INFO L899 garLoopResultBuilder]: For program point L527-1(line 527) no Hoare annotation was computed. [2023-11-23 21:32:59,428 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2023-11-23 21:32:59,428 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2023-11-23 21:32:59,428 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2023-11-23 21:32:59,428 INFO L899 garLoopResultBuilder]: For program point L552-2(lines 552 555) no Hoare annotation was computed. [2023-11-23 21:32:59,428 INFO L899 garLoopResultBuilder]: For program point L519-1(line 519) no Hoare annotation was computed. [2023-11-23 21:32:59,429 INFO L899 garLoopResultBuilder]: For program point L519-2(lines 519 520) no Hoare annotation was computed. [2023-11-23 21:32:59,429 INFO L899 garLoopResultBuilder]: For program point L552-5(line 552) no Hoare annotation was computed. [2023-11-23 21:32:59,429 INFO L899 garLoopResultBuilder]: For program point L552-6(line 552) no Hoare annotation was computed. [2023-11-23 21:32:59,429 INFO L895 garLoopResultBuilder]: At program point L552-7(lines 552 555) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_main_~out_len~0#1| 2147483647)) (.cse3 (= (select |#valid| 0) 0)) (.cse4 (<= 1 |ULTIMATE.start_main_~in_len~0#1|)) (.cse5 (<= 1 |ULTIMATE.start_main_~out_len~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~i~3#1| 0) .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 |ULTIMATE.start_main_~i~3#1|) .cse5))) [2023-11-23 21:32:59,429 INFO L899 garLoopResultBuilder]: For program point L552-8(lines 552 555) no Hoare annotation was computed. [2023-11-23 21:32:59,430 INFO L899 garLoopResultBuilder]: For program point L544-1(line 544) no Hoare annotation was computed. [2023-11-23 21:32:59,430 INFO L899 garLoopResultBuilder]: For program point L544-2(lines 544 547) no Hoare annotation was computed. [2023-11-23 21:32:59,430 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 548) no Hoare annotation was computed. [2023-11-23 21:32:59,430 INFO L899 garLoopResultBuilder]: For program point L544-5(line 544) no Hoare annotation was computed. [2023-11-23 21:32:59,430 INFO L899 garLoopResultBuilder]: For program point L544-6(line 544) no Hoare annotation was computed. [2023-11-23 21:32:59,430 INFO L895 garLoopResultBuilder]: At program point L544-7(lines 544 547) the Hoare annotation is: (let ((.cse0 (<= 2 |ULTIMATE.start_main_#t~malloc20#1.base|)) (.cse1 (<= 1 |#StackHeapBarrier|)) (.cse2 (= |ULTIMATE.start_main_#t~malloc20#1.offset| 0)) (.cse3 (= |ULTIMATE.start_main_~hay~0#1.offset| 0)) (.cse4 (<= 2 |ULTIMATE.start_main_~hay~0#1.base|)) (.cse5 (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647)) (.cse6 (= (select |#valid| 0) 0)) (.cse7 (<= 1 |ULTIMATE.start_main_~in_len~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= 1 |ULTIMATE.start_main_~i~2#1|) .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~i~2#1| 0) .cse5 .cse6 .cse7))) [2023-11-23 21:32:59,430 INFO L899 garLoopResultBuilder]: For program point L544-8(lines 544 547) no Hoare annotation was computed. [2023-11-23 21:32:59,431 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~in_len~0#1|) [2023-11-23 21:32:59,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2023-11-23 21:32:59,431 INFO L899 garLoopResultBuilder]: For program point L528-1(line 528) no Hoare annotation was computed. [2023-11-23 21:32:59,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:32:59,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 548) no Hoare annotation was computed. [2023-11-23 21:32:59,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2023-11-23 21:32:59,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2023-11-23 21:32:59,431 INFO L899 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2023-11-23 21:32:59,432 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-23 21:32:59,434 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:59,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:32:59,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-23 21:32:59,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-23 21:32:59,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~in_len~0 [2023-11-23 21:32:59,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~in_len~0 [2023-11-23 21:32:59,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc20!base could not be translated [2023-11-23 21:32:59,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc20!offset could not be translated [2023-11-23 21:32:59,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-23 21:32:59,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc20!base could not be translated [2023-11-23 21:32:59,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc20!offset could not be translated [2023-11-23 21:32:59,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-23 21:32:59,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:32:59 BoogieIcfgContainer [2023-11-23 21:32:59,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:32:59,459 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:32:59,459 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:32:59,459 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:32:59,460 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:49" (3/4) ... [2023-11-23 21:32:59,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:32:59,465 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure strlen [2023-11-23 21:32:59,472 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-23 21:32:59,472 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 21:32:59,473 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 21:32:59,473 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:32:59,589 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:32:59,589 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:32:59,590 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:32:59,590 INFO L158 Benchmark]: Toolchain (without parser) took 11741.19ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 155.7MB in the beginning and 136.9MB in the end (delta: 18.7MB). Peak memory consumption was 104.0MB. Max. memory is 16.1GB. [2023-11-23 21:32:59,591 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:59,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.31ms. Allocated memory is still 186.6MB. Free memory was 155.7MB in the beginning and 138.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 21:32:59,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.02ms. Allocated memory is still 186.6MB. Free memory was 138.5MB in the beginning and 136.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:59,592 INFO L158 Benchmark]: Boogie Preprocessor took 66.27ms. Allocated memory is still 186.6MB. Free memory was 136.1MB in the beginning and 134.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:59,592 INFO L158 Benchmark]: RCFGBuilder took 617.24ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 115.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:32:59,593 INFO L158 Benchmark]: TraceAbstraction took 10150.18ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 114.5MB in the beginning and 142.2MB in the end (delta: -27.7MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-11-23 21:32:59,593 INFO L158 Benchmark]: Witness Printer took 131.15ms. Allocated memory is still 270.5MB. Free memory was 142.2MB in the beginning and 136.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:32:59,595 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 675.31ms. Allocated memory is still 186.6MB. Free memory was 155.7MB in the beginning and 138.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.02ms. Allocated memory is still 186.6MB. Free memory was 138.5MB in the beginning and 136.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.27ms. Allocated memory is still 186.6MB. Free memory was 136.1MB in the beginning and 134.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 617.24ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 115.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10150.18ms. Allocated memory was 186.6MB in the beginning and 270.5MB in the end (delta: 83.9MB). Free memory was 114.5MB in the beginning and 142.2MB in the end (delta: -27.7MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Witness Printer took 131.15ms. Allocated memory is still 270.5MB. Free memory was 142.2MB in the beginning and 136.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~in_len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~in_len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc20!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc20!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc20!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc20!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated * 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: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: 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 2 procedures, 60 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 532 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 330 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 202 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 163 SyntacticMatches, 24 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 61, 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, 11 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 24 NumberOfFragments, 124 HoareAnnotationTreeSize, 14 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 105 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 235 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 659 SizeOfPredicates, 11 NumberOfNonLiveVariables, 346 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 92/196 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: 0.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 7, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 0.5s, 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: 22, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 38, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 54, DAG_COMPRESSION_RETAINED_NODES: 26, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: ((((((in_len <= 2147483647) && (out_len <= 2147483647)) && (1 <= in_len)) && (i == 0)) && (1 <= out_len)) || (((((in_len <= 2147483647) && (out_len <= 2147483647)) && (1 <= in_len)) && (1 <= i)) && (1 <= out_len))) - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: ((((in_len <= 2147483647) && (1 <= i)) && (1 <= in_len)) || (((i == 0) && (in_len <= 2147483647)) && (1 <= in_len))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:32:59,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d2af4ac-3b91-4d2e-a79a-0cb010f9ab73/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE