./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/mbpr5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/mbpr5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5503daab190ef8b57bdc3b49ed300bfd661cba05f76774439c2c92cf1668f08b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:52:17,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:17,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-24 23:52:17,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:17,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:17,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:17,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:17,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:17,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:17,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:17,354 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:17,356 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:17,356 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:17,358 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:52:17,358 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:17,359 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:17,359 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:52:17,359 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:52:17,360 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:17,360 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:52:17,361 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:52:17,361 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:52:17,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:17,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:17,363 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:52:17,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:52:17,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:52:17,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:17,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:17,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:17,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:17,366 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:52:17,366 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:52:17,367 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:52:17,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:17,367 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:17,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:17,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:17,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:17,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:17,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:17,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:17,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:17,369 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:52:17,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:52:17,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:17,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:17,370 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:17,371 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:17,371 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_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5503daab190ef8b57bdc3b49ed300bfd661cba05f76774439c2c92cf1668f08b [2023-11-24 23:52:17,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:17,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:17,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:17,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:17,704 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:17,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/array-tiling/mbpr5.c [2023-11-24 23:52:20,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:21,070 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:21,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/sv-benchmarks/c/array-tiling/mbpr5.c [2023-11-24 23:52:21,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/data/d578a2020/78ba6b046a35448b88c2402aca6ecbfc/FLAGce4324d6e [2023-11-24 23:52:21,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/data/d578a2020/78ba6b046a35448b88c2402aca6ecbfc [2023-11-24 23:52:21,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:21,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:21,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:21,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:21,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:21,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec4ade4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21, skipping insertion in model container [2023-11-24 23:52:21,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,159 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:52:21,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:21,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:52:21,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:52:21,527 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:52:21,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21 WrapperNode [2023-11-24 23:52:21,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:21,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:21,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:52:21,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:52:21,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,624 INFO L138 Inliner]: procedures = 15, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 405 [2023-11-24 23:52:21,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:52:21,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:52:21,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:52:21,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:52:21,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:52:21,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:52:21,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:52:21,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:52:21,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (1/1) ... [2023-11-24 23:52:21,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:21,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:21,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:52:21,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:52:21,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:52:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:52:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:52:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:52:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:52:21,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:52:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:52:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:52:21,946 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:52:21,949 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:52:23,021 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:52:23,116 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:52:23,123 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-24 23:52:23,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:23 BoogieIcfgContainer [2023-11-24 23:52:23,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:52:23,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:52:23,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:52:23,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:52:23,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:52:21" (1/3) ... [2023-11-24 23:52:23,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca0b9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:23, skipping insertion in model container [2023-11-24 23:52:23,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:21" (2/3) ... [2023-11-24 23:52:23,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca0b9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:52:23, skipping insertion in model container [2023-11-24 23:52:23,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:52:23" (3/3) ... [2023-11-24 23:52:23,135 INFO L112 eAbstractionObserver]: Analyzing ICFG mbpr5.c [2023-11-24 23:52:23,152 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:52:23,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 222 error locations. [2023-11-24 23:52:23,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:52:23,233 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;@7ffa7a4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:52:23,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 222 error locations. [2023-11-24 23:52:23,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 466 states, 243 states have (on average 1.9876543209876543) internal successors, (483), 465 states have internal predecessors, (483), 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) [2023-11-24 23:52:23,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:52:23,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:23,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 23:52:23,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:23,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:23,257 INFO L85 PathProgramCache]: Analyzing trace with hash 19119953, now seen corresponding path program 1 times [2023-11-24 23:52:23,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:23,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452176712] [2023-11-24 23:52:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:23,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:23,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452176712] [2023-11-24 23:52:23,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452176712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:23,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:23,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:52:23,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242402835] [2023-11-24 23:52:23,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:23,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:23,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:23,807 INFO L87 Difference]: Start difference. First operand has 466 states, 243 states have (on average 1.9876543209876543) internal successors, (483), 465 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-24 23:52:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:24,010 INFO L93 Difference]: Finished difference Result 840 states and 871 transitions. [2023-11-24 23:52:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:24,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2023-11-24 23:52:24,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:24,030 INFO L225 Difference]: With dead ends: 840 [2023-11-24 23:52:24,030 INFO L226 Difference]: Without dead ends: 458 [2023-11-24 23:52:24,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:24,038 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 937 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:24,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 439 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:52:24,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-24 23:52:24,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2023-11-24 23:52:24,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 241 states have (on average 1.941908713692946) internal successors, (468), 457 states have internal predecessors, (468), 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) [2023-11-24 23:52:24,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 468 transitions. [2023-11-24 23:52:24,106 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 468 transitions. Word has length 4 [2023-11-24 23:52:24,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:24,106 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 468 transitions. [2023-11-24 23:52:24,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-24 23:52:24,107 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 468 transitions. [2023-11-24 23:52:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:52:24,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:24,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 23:52:24,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:52:24,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:24,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:24,109 INFO L85 PathProgramCache]: Analyzing trace with hash 592718597, now seen corresponding path program 1 times [2023-11-24 23:52:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:24,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138979544] [2023-11-24 23:52:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:24,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:24,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:24,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138979544] [2023-11-24 23:52:24,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138979544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:24,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:24,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:52:24,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821581539] [2023-11-24 23:52:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:24,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:52:24,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:52:24,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:52:24,395 INFO L87 Difference]: Start difference. First operand 458 states and 468 transitions. Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-24 23:52:24,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:24,505 INFO L93 Difference]: Finished difference Result 458 states and 468 transitions. [2023-11-24 23:52:24,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:52:24,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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 5 [2023-11-24 23:52:24,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:24,509 INFO L225 Difference]: With dead ends: 458 [2023-11-24 23:52:24,510 INFO L226 Difference]: Without dead ends: 453 [2023-11-24 23:52:24,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:52:24,512 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 460 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:24,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 434 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:52:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-24 23:52:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2023-11-24 23:52:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 241 states have (on average 1.9211618257261411) internal successors, (463), 452 states have internal predecessors, (463), 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) [2023-11-24 23:52:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 463 transitions. [2023-11-24 23:52:24,539 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 463 transitions. Word has length 5 [2023-11-24 23:52:24,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:24,539 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 463 transitions. [2023-11-24 23:52:24,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-24 23:52:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 463 transitions. [2023-11-24 23:52:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:52:24,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:24,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:24,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:52:24,541 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:24,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:24,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1069228056, now seen corresponding path program 1 times [2023-11-24 23:52:24,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:24,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098880100] [2023-11-24 23:52:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:24,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:24,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:24,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098880100] [2023-11-24 23:52:24,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098880100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:24,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:24,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:52:24,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793871295] [2023-11-24 23:52:24,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:24,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:52:24,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:24,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:52:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:52:24,592 INFO L87 Difference]: Start difference. First operand 453 states and 463 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-11-24 23:52:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:25,673 INFO L93 Difference]: Finished difference Result 898 states and 918 transitions. [2023-11-24 23:52:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:52:25,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-24 23:52:25,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:25,681 INFO L225 Difference]: With dead ends: 898 [2023-11-24 23:52:25,682 INFO L226 Difference]: Without dead ends: 698 [2023-11-24 23:52:25,684 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 [2023-11-24 23:52:25,692 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 241 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:25,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 288 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 23:52:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-11-24 23:52:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 673. [2023-11-24 23:52:25,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 461 states have (on average 1.5032537960954446) internal successors, (693), 672 states have internal predecessors, (693), 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) [2023-11-24 23:52:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 693 transitions. [2023-11-24 23:52:25,719 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 693 transitions. Word has length 8 [2023-11-24 23:52:25,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:25,719 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 693 transitions. [2023-11-24 23:52:25,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-11-24 23:52:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 693 transitions. [2023-11-24 23:52:25,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:52:25,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:25,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:25,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:52:25,722 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr220ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:25,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:25,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1987954389, now seen corresponding path program 1 times [2023-11-24 23:52:25,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:25,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78796234] [2023-11-24 23:52:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:25,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:25,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:25,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78796234] [2023-11-24 23:52:25,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78796234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:25,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:25,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:52:25,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226347145] [2023-11-24 23:52:25,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:25,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:25,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:25,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:25,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:25,836 INFO L87 Difference]: Start difference. First operand 673 states and 693 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-11-24 23:52:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:26,329 INFO L93 Difference]: Finished difference Result 678 states and 698 transitions. [2023-11-24 23:52:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:26,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2023-11-24 23:52:26,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:26,334 INFO L225 Difference]: With dead ends: 678 [2023-11-24 23:52:26,334 INFO L226 Difference]: Without dead ends: 676 [2023-11-24 23:52:26,335 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 [2023-11-24 23:52:26,336 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 3 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:26,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 942 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:52:26,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-11-24 23:52:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 676. [2023-11-24 23:52:26,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 464 states have (on average 1.5) internal successors, (696), 675 states have internal predecessors, (696), 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) [2023-11-24 23:52:26,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 696 transitions. [2023-11-24 23:52:26,358 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 696 transitions. Word has length 25 [2023-11-24 23:52:26,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:26,358 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 696 transitions. [2023-11-24 23:52:26,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-11-24 23:52:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 696 transitions. [2023-11-24 23:52:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:52:26,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:26,361 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:26,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:52:26,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr220ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:26,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:26,362 INFO L85 PathProgramCache]: Analyzing trace with hash -154226188, now seen corresponding path program 1 times [2023-11-24 23:52:26,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:26,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991927867] [2023-11-24 23:52:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:26,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:52:26,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:26,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991927867] [2023-11-24 23:52:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991927867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:26,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:26,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:52:26,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746105615] [2023-11-24 23:52:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:26,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:52:26,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:26,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:52:26,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:52:26,755 INFO L87 Difference]: Start difference. First operand 676 states and 696 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2023-11-24 23:52:27,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:27,710 INFO L93 Difference]: Finished difference Result 1237 states and 1273 transitions. [2023-11-24 23:52:27,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:52:27,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) Word has length 28 [2023-11-24 23:52:27,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:27,715 INFO L225 Difference]: With dead ends: 1237 [2023-11-24 23:52:27,715 INFO L226 Difference]: Without dead ends: 696 [2023-11-24 23:52:27,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:52:27,718 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1632 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:27,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 268 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:52:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-11-24 23:52:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 676. [2023-11-24 23:52:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 464 states have (on average 1.4892241379310345) internal successors, (691), 675 states have internal predecessors, (691), 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) [2023-11-24 23:52:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 691 transitions. [2023-11-24 23:52:27,742 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 691 transitions. Word has length 28 [2023-11-24 23:52:27,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:27,742 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 691 transitions. [2023-11-24 23:52:27,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2023-11-24 23:52:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 691 transitions. [2023-11-24 23:52:27,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-24 23:52:27,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:27,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:27,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:52:27,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:27,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:27,751 INFO L85 PathProgramCache]: Analyzing trace with hash -770054501, now seen corresponding path program 1 times [2023-11-24 23:52:27,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:27,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984840095] [2023-11-24 23:52:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:27,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:27,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:27,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984840095] [2023-11-24 23:52:27,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984840095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:27,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:27,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:52:27,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191137698] [2023-11-24 23:52:27,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:27,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:27,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:27,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:27,888 INFO L87 Difference]: Start difference. First operand 676 states and 691 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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) [2023-11-24 23:52:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:28,703 INFO L93 Difference]: Finished difference Result 696 states and 711 transitions. [2023-11-24 23:52:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:28,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2023-11-24 23:52:28,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:28,708 INFO L225 Difference]: With dead ends: 696 [2023-11-24 23:52:28,708 INFO L226 Difference]: Without dead ends: 694 [2023-11-24 23:52:28,709 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 [2023-11-24 23:52:28,710 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 200 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:28,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 542 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:52:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-11-24 23:52:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 678. [2023-11-24 23:52:28,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 466 states have (on average 1.4871244635193133) internal successors, (693), 677 states have internal predecessors, (693), 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) [2023-11-24 23:52:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 693 transitions. [2023-11-24 23:52:28,735 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 693 transitions. Word has length 44 [2023-11-24 23:52:28,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:28,736 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 693 transitions. [2023-11-24 23:52:28,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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) [2023-11-24 23:52:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 693 transitions. [2023-11-24 23:52:28,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 23:52:28,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:28,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:28,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:52:28,739 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:28,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:28,740 INFO L85 PathProgramCache]: Analyzing trace with hash 10306463, now seen corresponding path program 1 times [2023-11-24 23:52:28,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:28,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433012694] [2023-11-24 23:52:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:28,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:28,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433012694] [2023-11-24 23:52:28,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433012694] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:52:28,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485591232] [2023-11-24 23:52:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:28,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:28,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:28,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:28,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:52:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:28,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:52:29,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:29,140 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:52:29,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485591232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:29,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:52:29,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-24 23:52:29,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166218108] [2023-11-24 23:52:29,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:29,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:52:29,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:29,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:52:29,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:52:29,145 INFO L87 Difference]: Start difference. First operand 678 states and 693 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-24 23:52:30,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:30,095 INFO L93 Difference]: Finished difference Result 694 states and 709 transitions. [2023-11-24 23:52:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:52:30,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2023-11-24 23:52:30,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:30,100 INFO L225 Difference]: With dead ends: 694 [2023-11-24 23:52:30,100 INFO L226 Difference]: Without dead ends: 673 [2023-11-24 23:52:30,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-24 23:52:30,101 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 264 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:30,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 494 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:52:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-11-24 23:52:30,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 657. [2023-11-24 23:52:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 466 states have (on average 1.44206008583691) internal successors, (672), 656 states have internal predecessors, (672), 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) [2023-11-24 23:52:30,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 672 transitions. [2023-11-24 23:52:30,149 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 672 transitions. Word has length 50 [2023-11-24 23:52:30,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:30,150 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 672 transitions. [2023-11-24 23:52:30,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-24 23:52:30,150 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 672 transitions. [2023-11-24 23:52:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-24 23:52:30,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:30,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:30,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:52:30,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:30,357 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:30,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash 319500419, now seen corresponding path program 1 times [2023-11-24 23:52:30,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:30,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750382572] [2023-11-24 23:52:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:30,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750382572] [2023-11-24 23:52:30,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750382572] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:52:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996311269] [2023-11-24 23:52:30,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:30,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:30,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:30,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:30,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:52:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:30,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:52:30,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:30,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:52:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:52:30,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996311269] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:52:30,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1621545134] [2023-11-24 23:52:30,826 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2023-11-24 23:52:30,826 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:52:30,830 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:52:30,835 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:52:30,836 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:52:38,164 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:52:40,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1621545134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:40,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:52:40,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4, 4, 4] total 20 [2023-11-24 23:52:40,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794661921] [2023-11-24 23:52:40,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:40,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-24 23:52:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:40,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-24 23:52:40,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=323, Unknown=15, NotChecked=0, Total=420 [2023-11-24 23:52:40,140 INFO L87 Difference]: Start difference. First operand 657 states and 672 transitions. Second operand has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2023-11-24 23:52:47,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:47,543 INFO L93 Difference]: Finished difference Result 1242 states and 1290 transitions. [2023-11-24 23:52:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 23:52:47,544 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 51 [2023-11-24 23:52:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:47,547 INFO L225 Difference]: With dead ends: 1242 [2023-11-24 23:52:47,547 INFO L226 Difference]: Without dead ends: 596 [2023-11-24 23:52:47,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 116 SyntacticMatches, 23 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=167, Invalid=567, Unknown=22, NotChecked=0, Total=756 [2023-11-24 23:52:47,550 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1454 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 210 mSolverCounterUnsat, 392 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 392 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:47,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 238 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1523 Invalid, 392 Unknown, 0 Unchecked, 5.8s Time] [2023-11-24 23:52:47,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-11-24 23:52:47,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 541. [2023-11-24 23:52:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 387 states have (on average 1.4108527131782946) internal successors, (546), 540 states have internal predecessors, (546), 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) [2023-11-24 23:52:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 546 transitions. [2023-11-24 23:52:47,572 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 546 transitions. Word has length 51 [2023-11-24 23:52:47,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:47,572 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 546 transitions. [2023-11-24 23:52:47,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2023-11-24 23:52:47,573 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 546 transitions. [2023-11-24 23:52:47,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-24 23:52:47,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:47,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:47,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:52:47,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:47,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr86ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:47,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:47,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1649529978, now seen corresponding path program 1 times [2023-11-24 23:52:47,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:47,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244890228] [2023-11-24 23:52:47,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 23:52:47,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244890228] [2023-11-24 23:52:47,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244890228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:47,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:52:47,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:52:47,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111897698] [2023-11-24 23:52:47,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:47,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:52:47,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:47,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:52:47,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:52:47,983 INFO L87 Difference]: Start difference. First operand 541 states and 546 transitions. Second operand has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-24 23:52:48,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:48,655 INFO L93 Difference]: Finished difference Result 596 states and 601 transitions. [2023-11-24 23:52:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:52:48,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 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 90 [2023-11-24 23:52:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:48,659 INFO L225 Difference]: With dead ends: 596 [2023-11-24 23:52:48,659 INFO L226 Difference]: Without dead ends: 594 [2023-11-24 23:52:48,660 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 [2023-11-24 23:52:48,660 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 173 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:48,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 409 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:52:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-24 23:52:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 543. [2023-11-24 23:52:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 389 states have (on average 1.4087403598971722) internal successors, (548), 542 states have internal predecessors, (548), 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) [2023-11-24 23:52:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 548 transitions. [2023-11-24 23:52:48,683 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 548 transitions. Word has length 90 [2023-11-24 23:52:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:48,684 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 548 transitions. [2023-11-24 23:52:48,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-24 23:52:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 548 transitions. [2023-11-24 23:52:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-24 23:52:48,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:48,685 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:48,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 23:52:48,686 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:48,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:48,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1131222718, now seen corresponding path program 1 times [2023-11-24 23:52:48,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:48,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264261156] [2023-11-24 23:52:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:48,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 23:52:48,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264261156] [2023-11-24 23:52:48,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264261156] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:52:48,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062040247] [2023-11-24 23:52:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:48,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:48,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:48,832 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:48,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 23:52:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:48,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:52:48,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 23:52:49,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:52:49,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062040247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:52:49,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:52:49,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-24 23:52:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600449280] [2023-11-24 23:52:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:52:49,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:52:49,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:52:49,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:52:49,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:52:49,038 INFO L87 Difference]: Start difference. First operand 543 states and 548 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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) [2023-11-24 23:52:49,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:52:49,837 INFO L93 Difference]: Finished difference Result 594 states and 599 transitions. [2023-11-24 23:52:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:52:49,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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 96 [2023-11-24 23:52:49,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:52:49,841 INFO L225 Difference]: With dead ends: 594 [2023-11-24 23:52:49,841 INFO L226 Difference]: Without dead ends: 575 [2023-11-24 23:52:49,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-24 23:52:49,842 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 230 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:52:49,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 361 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 23:52:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-24 23:52:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 524. [2023-11-24 23:52:49,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 389 states have (on average 1.3598971722365039) internal successors, (529), 523 states have internal predecessors, (529), 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) [2023-11-24 23:52:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 529 transitions. [2023-11-24 23:52:49,865 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 529 transitions. Word has length 96 [2023-11-24 23:52:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:52:49,865 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 529 transitions. [2023-11-24 23:52:49,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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) [2023-11-24 23:52:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 529 transitions. [2023-11-24 23:52:49,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-24 23:52:49,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:52:49,867 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:52:49,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-24 23:52:50,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-24 23:52:50,073 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:52:50,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:52:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash 708166064, now seen corresponding path program 1 times [2023-11-24 23:52:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:52:50,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512353] [2023-11-24 23:52:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:50,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:52:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 23:52:50,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:52:50,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512353] [2023-11-24 23:52:50,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512353] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:52:50,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987743664] [2023-11-24 23:52:50,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:52:50,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:52:50,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:52:50,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:52:50,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 23:52:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:52:50,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:52:50,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:52:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 23:52:50,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:52:50,505 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 23:52:50,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987743664] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:52:50,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [951924392] [2023-11-24 23:52:50,515 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2023-11-24 23:52:50,515 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:52:50,515 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:52:50,516 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:52:50,516 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:52:58,856 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:53:03,006 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15935#(and (= 429496730 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~MINVAL~0#1| |ULTIMATE.start_main_~CCCELVOL4~0#1|) (<= 429496730 (div ~CELLCOUNT~0 5)))' at error location [2023-11-24 23:53:03,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:53:03,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:53:03,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-24 23:53:03,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112608522] [2023-11-24 23:53:03,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:53:03,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 23:53:03,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:03,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 23:53:03,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=874, Unknown=64, NotChecked=0, Total=1122 [2023-11-24 23:53:03,011 INFO L87 Difference]: Start difference. First operand 524 states and 529 transitions. Second operand has 10 states, 9 states have (on average 20.77777777777778) internal successors, (187), 10 states have internal predecessors, (187), 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) [2023-11-24 23:53:04,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:04,189 INFO L93 Difference]: Finished difference Result 627 states and 652 transitions. [2023-11-24 23:53:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:53:04,190 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 20.77777777777778) internal successors, (187), 10 states have internal predecessors, (187), 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 97 [2023-11-24 23:53:04,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:04,193 INFO L225 Difference]: With dead ends: 627 [2023-11-24 23:53:04,193 INFO L226 Difference]: Without dead ends: 557 [2023-11-24 23:53:04,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 245 SyntacticMatches, 16 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=204, Invalid=989, Unknown=67, NotChecked=0, Total=1260 [2023-11-24 23:53:04,196 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 567 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:04,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 244 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-24 23:53:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-24 23:53:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 501. [2023-11-24 23:53:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 434 states have (on average 1.1705069124423964) internal successors, (508), 500 states have internal predecessors, (508), 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) [2023-11-24 23:53:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 508 transitions. [2023-11-24 23:53:04,223 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 508 transitions. Word has length 97 [2023-11-24 23:53:04,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:04,223 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 508 transitions. [2023-11-24 23:53:04,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 20.77777777777778) internal successors, (187), 10 states have internal predecessors, (187), 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) [2023-11-24 23:53:04,224 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 508 transitions. [2023-11-24 23:53:04,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-24 23:53:04,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:04,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:53:04,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-24 23:53:04,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:04,433 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr130ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:53:04,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1570005534, now seen corresponding path program 1 times [2023-11-24 23:53:04,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:04,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499706511] [2023-11-24 23:53:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:04,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:53:04,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499706511] [2023-11-24 23:53:04,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499706511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:04,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:04,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:53:04,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822118074] [2023-11-24 23:53:04,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:04,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:53:04,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:04,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:53:04,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:53:04,631 INFO L87 Difference]: Start difference. First operand 501 states and 508 transitions. Second operand has 4 states, 3 states have (on average 44.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2023-11-24 23:53:05,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:05,327 INFO L93 Difference]: Finished difference Result 555 states and 562 transitions. [2023-11-24 23:53:05,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:53:05,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 44.0) internal successors, (132), 4 states have internal predecessors, (132), 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 136 [2023-11-24 23:53:05,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:05,331 INFO L225 Difference]: With dead ends: 555 [2023-11-24 23:53:05,332 INFO L226 Difference]: Without dead ends: 553 [2023-11-24 23:53:05,332 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 [2023-11-24 23:53:05,334 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 171 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:05,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 234 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:53:05,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-11-24 23:53:05,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 504. [2023-11-24 23:53:05,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 437 states have (on average 1.1693363844393592) internal successors, (511), 503 states have internal predecessors, (511), 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) [2023-11-24 23:53:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 511 transitions. [2023-11-24 23:53:05,362 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 511 transitions. Word has length 136 [2023-11-24 23:53:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:05,363 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 511 transitions. [2023-11-24 23:53:05,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 44.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2023-11-24 23:53:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 511 transitions. [2023-11-24 23:53:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-24 23:53:05,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:05,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:53:05,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 23:53:05,369 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr90ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 219 more)] === [2023-11-24 23:53:05,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:05,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1296317094, now seen corresponding path program 1 times [2023-11-24 23:53:05,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:05,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789132212] [2023-11-24 23:53:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:05,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:53:05,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:05,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789132212] [2023-11-24 23:53:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789132212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:53:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547075796] [2023-11-24 23:53:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:05,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:05,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:05,597 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:53:05,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_636ee67a-46b8-472b-8f7c-a372e4462ba3/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 23:53:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:05,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:53:05,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:53:05,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:53:05,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547075796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:05,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:53:05,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-24 23:53:05,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025951900] [2023-11-24 23:53:05,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:05,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:53:05,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:05,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:53:05,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:53:05,833 INFO L87 Difference]: Start difference. First operand 504 states and 511 transitions. Second operand has 5 states, 4 states have (on average 34.5) internal successors, (138), 5 states have internal predecessors, (138), 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)