./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array18_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array18_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d58909a91b196e39d7623dd2e1e4d9b2698d6fa8ff06c2897eb5762e2e2e408 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:10:15,779 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:10:15,886 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:10:15,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:10:15,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:10:15,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:10:15,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:10:15,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:10:15,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:10:15,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:10:15,931 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:10:15,931 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:10:15,932 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:10:15,932 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:10:15,932 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:10:15,933 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:10:15,933 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:10:15,934 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:10:15,934 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:10:15,934 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:10:15,934 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:10:15,935 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:10:15,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:10:15,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:10:15,935 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:10:15,935 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:10:15,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:10:15,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:10:15,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:10:15,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:15,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:10:15,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:10:15,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:10:15,938 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:10:15,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:10:15,938 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:10:15,939 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:10:15,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:10:15,939 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d58909a91b196e39d7623dd2e1e4d9b2698d6fa8ff06c2897eb5762e2e2e408 [2024-11-14 04:10:16,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:10:16,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:10:16,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:10:16,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:10:16,236 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:10:16,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/array-patterns/array18_pattern.c Unable to find full path for "g++" [2024-11-14 04:10:18,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:10:18,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:10:18,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/sv-benchmarks/c/array-patterns/array18_pattern.c [2024-11-14 04:10:18,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/data/92e4293d4/1199e303c77d4f67995b99ad497bcece/FLAGce22f9d37 [2024-11-14 04:10:18,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/data/92e4293d4/1199e303c77d4f67995b99ad497bcece [2024-11-14 04:10:18,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:10:18,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:10:18,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:18,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:10:18,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:10:18,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad158c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18, skipping insertion in model container [2024-11-14 04:10:18,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,424 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:10:18,598 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/sv-benchmarks/c/array-patterns/array18_pattern.c[1444,1457] [2024-11-14 04:10:18,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:18,642 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:10:18,657 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/sv-benchmarks/c/array-patterns/array18_pattern.c[1444,1457] [2024-11-14 04:10:18,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:18,699 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:10:18,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18 WrapperNode [2024-11-14 04:10:18,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:18,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:18,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:10:18,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:10:18,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,751 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2024-11-14 04:10:18,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:18,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:10:18,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:10:18,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:10:18,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:10:18,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:10:18,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:10:18,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:10:18,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (1/1) ... [2024-11-14 04:10:18,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:18,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:10:18,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:10:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:10:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:10:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:10:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:10:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:10:18,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:10:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:10:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:10:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:10:18,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:10:18,935 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:10:18,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:10:19,236 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-14 04:10:19,236 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:10:19,374 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:10:19,374 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-14 04:10:19,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:19 BoogieIcfgContainer [2024-11-14 04:10:19,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:10:19,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:10:19,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:10:19,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:10:19,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:10:18" (1/3) ... [2024-11-14 04:10:19,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb598f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:19, skipping insertion in model container [2024-11-14 04:10:19,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:18" (2/3) ... [2024-11-14 04:10:19,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb598f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:19, skipping insertion in model container [2024-11-14 04:10:19,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:19" (3/3) ... [2024-11-14 04:10:19,391 INFO L112 eAbstractionObserver]: Analyzing ICFG array18_pattern.c [2024-11-14 04:10:19,412 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:10:19,414 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG array18_pattern.c that has 2 procedures, 20 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-14 04:10:19,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:10:19,508 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d11a028, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:10:19,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:10:19,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:10:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 04:10:19,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:19,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:19,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:19,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash -672568664, now seen corresponding path program 1 times [2024-11-14 04:10:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:19,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626032888] [2024-11-14 04:10:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:19,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:10:19,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:19,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626032888] [2024-11-14 04:10:19,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626032888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:19,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:19,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:19,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272599153] [2024-11-14 04:10:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:19,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:10:19,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:10:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:10:19,760 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:10:19,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:19,868 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2024-11-14 04:10:19,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:10:19,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-14 04:10:19,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:19,884 INFO L225 Difference]: With dead ends: 28 [2024-11-14 04:10:19,885 INFO L226 Difference]: Without dead ends: 18 [2024-11-14 04:10:19,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:10:19,893 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:19,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-14 04:10:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-14 04:10:19,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:10:19,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2024-11-14 04:10:19,933 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 11 [2024-11-14 04:10:19,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:19,934 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-11-14 04:10:19,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:10:19,935 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-11-14 04:10:19,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:10:19,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:19,936 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:19,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:10:19,937 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:19,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:19,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1900272717, now seen corresponding path program 1 times [2024-11-14 04:10:19,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:19,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986799813] [2024-11-14 04:10:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:19,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:10:20,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:20,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986799813] [2024-11-14 04:10:20,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986799813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:20,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:20,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:10:20,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986586075] [2024-11-14 04:10:20,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:20,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:10:20,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:20,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:10:20,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:10:20,245 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:10:20,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:20,303 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2024-11-14 04:10:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:10:20,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-11-14 04:10:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:20,304 INFO L225 Difference]: With dead ends: 23 [2024-11-14 04:10:20,304 INFO L226 Difference]: Without dead ends: 20 [2024-11-14 04:10:20,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:10:20,305 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:20,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 38 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:10:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-14 04:10:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-14 04:10:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:10:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2024-11-14 04:10:20,312 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 19 [2024-11-14 04:10:20,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:20,313 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-14 04:10:20,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:10:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-11-14 04:10:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 04:10:20,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:20,314 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:20,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:10:20,314 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:20,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1628989308, now seen corresponding path program 1 times [2024-11-14 04:10:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:20,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389710655] [2024-11-14 04:10:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 04:10:20,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:20,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389710655] [2024-11-14 04:10:20,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389710655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:20,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:20,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:10:20,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345052611] [2024-11-14 04:10:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:20,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:10:20,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:20,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:10:20,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:10:20,613 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:10:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:20,795 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2024-11-14 04:10:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:10:20,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-14 04:10:20,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:20,797 INFO L225 Difference]: With dead ends: 41 [2024-11-14 04:10:20,799 INFO L226 Difference]: Without dead ends: 25 [2024-11-14 04:10:20,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:10:20,800 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:20,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:10:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-14 04:10:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2024-11-14 04:10:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:10:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2024-11-14 04:10:20,812 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 22 [2024-11-14 04:10:20,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:20,813 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2024-11-14 04:10:20,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:10:20,813 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-11-14 04:10:20,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 04:10:20,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:20,815 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:20,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:10:20,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:20,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:20,816 INFO L85 PathProgramCache]: Analyzing trace with hash 361070034, now seen corresponding path program 1 times [2024-11-14 04:10:20,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:20,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640569513] [2024-11-14 04:10:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:20,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:20,978 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 04:10:20,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:20,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640569513] [2024-11-14 04:10:20,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640569513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:20,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:20,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:10:20,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593571545] [2024-11-14 04:10:20,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:20,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:10:20,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:20,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:10:20,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:10:20,981 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:10:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:21,068 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2024-11-14 04:10:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:10:21,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2024-11-14 04:10:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:21,069 INFO L225 Difference]: With dead ends: 41 [2024-11-14 04:10:21,069 INFO L226 Difference]: Without dead ends: 24 [2024-11-14 04:10:21,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:10:21,070 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:21,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 32 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-14 04:10:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2024-11-14 04:10:21,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:10:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2024-11-14 04:10:21,081 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 24 [2024-11-14 04:10:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:21,082 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2024-11-14 04:10:21,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:10:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-11-14 04:10:21,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 04:10:21,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:21,084 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:21,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:10:21,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:10:21,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:21,084 INFO L85 PathProgramCache]: Analyzing trace with hash 905739398, now seen corresponding path program 1 times [2024-11-14 04:10:21,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:21,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644992610] [2024-11-14 04:10:21,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:10:21,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172195561] [2024-11-14 04:10:21,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:21,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:10:21,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:21,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:10:21,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171b024e-32b6-4270-9e0f-41f87f924c1e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:10:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:21,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 04:10:21,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:10:21,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-14 04:10:22,292 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-14 04:10:22,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 182 treesize of output 177 [2024-11-14 04:10:23,525 INFO L349 Elim1Store]: treesize reduction 901, result has 11.6 percent of original size [2024-11-14 04:10:23,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 29 case distinctions, treesize of input 166 treesize of output 481 [2024-11-14 04:10:26,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:26,987 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:27,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:27,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:27,028 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:27,079 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:27,253 INFO L349 Elim1Store]: treesize reduction 246, result has 15.8 percent of original size [2024-11-14 04:10:27,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 135 treesize of output 163 [2024-11-14 04:10:27,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:27,371 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:27,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:27,380 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:27,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:27,395 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:27,403 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:27,449 INFO L349 Elim1Store]: treesize reduction 65, result has 16.7 percent of original size [2024-11-14 04:10:27,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 127 treesize of output 122 [2024-11-14 04:10:27,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:28,205 INFO L349 Elim1Store]: treesize reduction 572, result has 16.4 percent of original size [2024-11-14 04:10:28,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 1546 treesize of output 1708 [2024-11-14 04:10:28,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:28,712 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:28,931 INFO L349 Elim1Store]: treesize reduction 800, result has 0.1 percent of original size [2024-11-14 04:10:28,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 26 case distinctions, treesize of input 213 treesize of output 125 [2024-11-14 04:10:30,108 INFO L349 Elim1Store]: treesize reduction 681, result has 27.1 percent of original size [2024-11-14 04:10:30,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 16 case distinctions, treesize of input 676 treesize of output 951 [2024-11-14 04:10:31,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:31,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:31,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:31,558 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:31,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:31,576 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:31,576 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:31,625 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:31,626 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:31,631 INFO L224 Elim1Store]: Index analysis took 102 ms [2024-11-14 04:10:31,655 INFO L349 Elim1Store]: treesize reduction 99, result has 1.0 percent of original size [2024-11-14 04:10:31,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 165 treesize of output 113 [2024-11-14 04:10:32,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:32,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:32,856 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:32,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:32,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:32,876 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:32,877 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:32,885 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:32,900 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:32,902 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:32,907 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:32,935 INFO L349 Elim1Store]: treesize reduction 91, result has 1.1 percent of original size [2024-11-14 04:10:32,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 165 treesize of output 113 [2024-11-14 04:10:34,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:34,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:34,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:34,202 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:34,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:34,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:34,298 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:34,299 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:34,300 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:34,300 INFO L224 Elim1Store]: Index analysis took 126 ms [2024-11-14 04:10:34,303 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:10:34,345 INFO L349 Elim1Store]: treesize reduction 334, result has 0.3 percent of original size [2024-11-14 04:10:34,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 190 treesize of output 135 [2024-11-14 04:10:34,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:34,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:10:35,161 INFO L349 Elim1Store]: treesize reduction 162, result has 13.4 percent of original size [2024-11-14 04:10:35,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 143 treesize of output 87 [2024-11-14 04:11:13,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:11:13,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:11:13,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:11:13,103 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:11:13,117 INFO L349 Elim1Store]: treesize reduction 209, result has 0.5 percent of original size [2024-11-14 04:11:13,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 284 treesize of output 149 [2024-11-14 04:11:36,307 WARN L286 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 273 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:11:59,764 WARN L286 SmtUtils]: Spent 12.18s on a formula simplification that was a NOOP. DAG size: 275 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:12:37,835 WARN L286 SmtUtils]: Spent 19.08s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:12:38,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5439 treesize of output 4975