./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array2_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_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/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_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array2_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/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_2631b142-3a9f-48f3-a040-81af4b17b3a9/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 1a25becec148beba97bef86c2a84619bb26dfafe7c127e8d70246837f0d2d470 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:03:35,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:03:35,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:03:35,429 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:03:35,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:03:35,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:03:35,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:03:35,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:03:35,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:03:35,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:03:35,478 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:03:35,478 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:03:35,478 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:03:35,478 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:03:35,479 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:03:35,479 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:03:35,480 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:03:35,480 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:03:35,480 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:03:35,480 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:03:35,481 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:03:35,481 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:03:35,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:03:35,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:03:35,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:03:35,482 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:03:35,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:03:35,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:03:35,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:03:35,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:03:35,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:03:35,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:03:35,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:03:35,483 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:03:35,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:03:35,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:03:35,484 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:03:35,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:03:35,484 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_2631b142-3a9f-48f3-a040-81af4b17b3a9/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 -> 1a25becec148beba97bef86c2a84619bb26dfafe7c127e8d70246837f0d2d470 [2024-11-14 03:03:35,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:03:35,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:03:35,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:03:35,888 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:03:35,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:03:35,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/array-patterns/array2_pattern.c Unable to find full path for "g++" [2024-11-14 03:03:38,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:03:38,771 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:03:38,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/sv-benchmarks/c/array-patterns/array2_pattern.c [2024-11-14 03:03:38,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/data/1314815e7/bcbad45a01ee4708a7676e3611300f8a/FLAG100cf1c12 [2024-11-14 03:03:38,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/data/1314815e7/bcbad45a01ee4708a7676e3611300f8a [2024-11-14 03:03:38,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:03:38,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:03:38,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:03:38,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:03:38,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:03:38,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:03:38" (1/1) ... [2024-11-14 03:03:38,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd81436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:38, skipping insertion in model container [2024-11-14 03:03:38,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:03:38" (1/1) ... [2024-11-14 03:03:38,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:03:39,092 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_2631b142-3a9f-48f3-a040-81af4b17b3a9/sv-benchmarks/c/array-patterns/array2_pattern.c[1322,1335] [2024-11-14 03:03:39,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:03:39,137 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:03:39,150 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_2631b142-3a9f-48f3-a040-81af4b17b3a9/sv-benchmarks/c/array-patterns/array2_pattern.c[1322,1335] [2024-11-14 03:03:39,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:03:39,180 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:03:39,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39 WrapperNode [2024-11-14 03:03:39,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:03:39,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:03:39,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:03:39,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:03:39,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,224 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2024-11-14 03:03:39,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:03:39,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:03:39,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:03:39,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:03:39,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:03:39,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:03:39,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:03:39,277 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:03:39,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (1/1) ... [2024-11-14 03:03:39,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:03:39,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:03:39,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:03:39,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:03:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:03:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:03:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:03:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:03:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:03:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:03:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:03:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:03:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:03:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:03:39,465 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:03:39,468 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:03:39,775 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-14 03:03:39,775 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:03:39,834 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:03:39,838 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 03:03:39,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:03:39 BoogieIcfgContainer [2024-11-14 03:03:39,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:03:39,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:03:39,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:03:39,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:03:39,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:03:38" (1/3) ... [2024-11-14 03:03:39,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a566360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:03:39, skipping insertion in model container [2024-11-14 03:03:39,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:39" (2/3) ... [2024-11-14 03:03:39,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a566360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:03:39, skipping insertion in model container [2024-11-14 03:03:39,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:03:39" (3/3) ... [2024-11-14 03:03:39,858 INFO L112 eAbstractionObserver]: Analyzing ICFG array2_pattern.c [2024-11-14 03:03:39,880 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:03:39,883 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG array2_pattern.c that has 2 procedures, 17 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 03:03:39,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:03:39,987 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;@57cdbd2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:03:39,989 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:03:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:40,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:03:40,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:40,004 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:40,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:40,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:40,009 INFO L85 PathProgramCache]: Analyzing trace with hash 444577635, now seen corresponding path program 1 times [2024-11-14 03:03:40,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:40,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290529716] [2024-11-14 03:03:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:40,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:40,194 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 03:03:40,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290529716] [2024-11-14 03:03:40,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290529716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:03:40,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:03:40,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:03:40,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793194861] [2024-11-14 03:03:40,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:03:40,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:03:40,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:40,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:03:40,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:03:40,242 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 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 03:03:40,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:40,295 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2024-11-14 03:03:40,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:03:40,298 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 03:03:40,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:40,313 INFO L225 Difference]: With dead ends: 24 [2024-11-14 03:03:40,313 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 03:03:40,320 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 03:03:40,325 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:40,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:03:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 03:03:40,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-14 03:03:40,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2024-11-14 03:03:40,374 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 11 [2024-11-14 03:03:40,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:40,376 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-14 03:03:40,376 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 03:03:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-14 03:03:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:03:40,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:40,379 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:40,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:03:40,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:40,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1806753580, now seen corresponding path program 1 times [2024-11-14 03:03:40,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:40,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573359775] [2024-11-14 03:03:40,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:40,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:03:40,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573359775] [2024-11-14 03:03:40,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573359775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:03:40,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:03:40,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:03:40,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324237379] [2024-11-14 03:03:40,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:03:40,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:03:40,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:40,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:03:40,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:03:40,802 INFO L87 Difference]: Start difference. First operand 15 states and 18 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:40,859 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2024-11-14 03:03:40,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:03:40,862 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2024-11-14 03:03:40,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:40,862 INFO L225 Difference]: With dead ends: 19 [2024-11-14 03:03:40,862 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 03:03:40,863 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 03:03:40,865 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:40,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:03:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 03:03:40,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 03:03:40,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2024-11-14 03:03:40,876 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 16 [2024-11-14 03:03:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:40,877 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2024-11-14 03:03:40,878 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-11-14 03:03:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:03:40,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:40,880 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:40,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:03:40,881 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:40,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash 173741513, now seen corresponding path program 1 times [2024-11-14 03:03:40,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:40,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209714155] [2024-11-14 03:03:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:40,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:03:41,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:41,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209714155] [2024-11-14 03:03:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209714155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:03:41,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:03:41,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:03:41,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327426846] [2024-11-14 03:03:41,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:03:41,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:03:41,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:41,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:03:41,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:03:41,190 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:41,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:41,304 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2024-11-14 03:03:41,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:03:41,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-11-14 03:03:41,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:41,307 INFO L225 Difference]: With dead ends: 29 [2024-11-14 03:03:41,308 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 03:03:41,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 03:03:41,309 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:41,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 28 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:03:41,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 03:03:41,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-14 03:03:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2024-11-14 03:03:41,322 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 17 [2024-11-14 03:03:41,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:41,322 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2024-11-14 03:03:41,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-14 03:03:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 03:03:41,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:41,324 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:41,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:03:41,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:41,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash 65990061, now seen corresponding path program 1 times [2024-11-14 03:03:41,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:41,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557727247] [2024-11-14 03:03:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:41,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:03:41,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201863061] [2024-11-14 03:03:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:41,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:03:41,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:03:41,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:03:41,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:03:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:41,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-14 03:03:41,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:03:41,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-11-14 03:03:41,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-14 03:03:42,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:03:42,696 INFO L349 Elim1Store]: treesize reduction 100, result has 13.0 percent of original size [2024-11-14 03:03:42,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 60 treesize of output 41 [2024-11-14 03:03:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:03:43,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:03:49,353 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse14 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (let ((.cse6 (* .cse14 4)) (.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((v_z_1 Int)) (let ((.cse0 (+ .cse14 v_z_1))) (or (< v_z_1 0) (< .cse0 2147483648) (forall ((v_y_1 Int)) (let ((.cse8 (* 4294967295 v_z_1)) (.cse9 (* v_y_1 4294967296))) (let ((.cse10 (+ .cse8 .cse9))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse13 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse12 .cse13 (+ (* .cse10 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse13))))))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse7 (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse4 (* .cse10 |c_ULTIMATE.start_main_~num~0#1|)) (.cse5 (* v_z_1 4))) (or (= (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse3 (+ .cse5 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 (- 34359738368)))) (store .cse2 .cse3 (+ .cse4 (select .cse2 .cse3))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) .cse7 |c_ULTIMATE.start_main_~sum~0#1|) 0) (< c_~ARR_SIZE~0 (+ .cse8 .cse9 1)) (< .cse10 0) (= (+ .cse7 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse1 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse11 (+ .cse5 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6))) (store .cse2 .cse11 (+ .cse4 (select .cse2 .cse11))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 0)))))))) (< 4294967295 .cse0)))) (forall ((v_z_1 Int)) (or (< (+ .cse14 v_z_1) 6442450944) (forall ((v_y_1 Int)) (let ((.cse21 (* 4294967295 v_z_1)) (.cse22 (* v_y_1 4294967296))) (let ((.cse23 (+ .cse21 .cse22))) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse25 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse12 .cse25 (+ (* .cse23 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse25))))))) (let ((.cse16 (select .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse20 (select .cse16 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse18 (* .cse23 |c_ULTIMATE.start_main_~num~0#1|)) (.cse19 (* v_z_1 4))) (or (= (+ (select (select (store .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse17 (+ .cse19 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 (- 34359738368)))) (store .cse16 .cse17 (+ .cse18 (select .cse16 .cse17))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) .cse20 |c_ULTIMATE.start_main_~sum~0#1|) 0) (< c_~ARR_SIZE~0 (+ .cse21 .cse22 1)) (< .cse23 0) (= (+ .cse20 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse24 (+ .cse19 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6))) (store .cse16 .cse24 (+ .cse18 (select .cse16 .cse24))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 0)))))))) (< 4294967295 v_z_1))) (forall ((v_z_3 Int)) (let ((.cse26 (+ .cse14 v_z_3))) (or (< .cse26 4294967296) (< 4294967295 v_z_3) (< 6442450943 .cse26) (forall ((v_y_3 Int)) (let ((.cse34 (* 4294967295 v_z_3)) (.cse35 (* v_y_3 4294967296))) (let ((.cse36 (+ .cse34 .cse35))) (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse37 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse12 .cse37 (+ (* .cse36 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse37))))))) (let ((.cse31 (* .cse36 |c_ULTIMATE.start_main_~num~0#1|)) (.cse32 (* v_z_3 4)) (.cse29 (select .cse28 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (or (= (let ((.cse27 (let ((.cse30 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 .cse32))) (store .cse29 .cse30 (+ (select .cse29 .cse30) .cse31))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse27 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse28 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse27) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (= (+ (select (select (store .cse28 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse33 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 .cse32))) (store .cse29 .cse33 (+ (select .cse29 .cse33) .cse31)))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse29 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) 0) (< c_~ARR_SIZE~0 (+ .cse34 .cse35 1)) (< .cse36 0)))))))))) (forall ((v_z_1 Int)) (let ((.cse45 (+ .cse14 v_z_1))) (or (forall ((v_y_1 Int)) (let ((.cse38 (* 4294967295 v_z_1)) (.cse39 (* v_y_1 4294967296))) (let ((.cse40 (+ .cse38 .cse39))) (or (< c_~ARR_SIZE~0 (+ .cse38 .cse39 1)) (< .cse40 0) (= (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse44 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse12 .cse44 (+ (* .cse40 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse44))))))) (let ((.cse41 (select .cse42 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse41 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse42 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse43 (+ (* v_z_1 4) (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6))) (store .cse41 .cse43 (+ (* .cse40 |c_ULTIMATE.start_main_~num~0#1|) (select .cse41 .cse43))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0))))) (< v_z_1 0) (< .cse45 2147483648) (< 4294967295 .cse45)))) (forall ((v_z_3 Int)) (let ((.cse46 (+ .cse14 v_z_3))) (or (< .cse46 4294967296) (< 4294967295 v_z_3) (< 6442450943 .cse46) (forall ((v_y_3 Int)) (let ((.cse53 (* 4294967295 v_z_3)) (.cse54 (* v_y_3 4294967296))) (let ((.cse51 (+ .cse53 .cse54))) (or (= (let ((.cse48 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse52 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse12 .cse52 (+ (* .cse51 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse52))))))) (let ((.cse47 (let ((.cse49 (select .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse50 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 (* v_z_3 4)))) (store .cse49 .cse50 (+ (select .cse49 .cse50) (* .cse51 |c_ULTIMATE.start_main_~num~0#1|)))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse47 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse47) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0) (< c_~ARR_SIZE~0 (+ .cse53 .cse54 1)) (< .cse51 0)))))))) (forall ((v_z_3 Int)) (or (forall ((v_y_3 Int)) (let ((.cse55 (* 4294967295 v_z_3)) (.cse56 (* v_y_3 4294967296))) (let ((.cse57 (+ .cse55 .cse56))) (or (< c_~ARR_SIZE~0 (+ .cse55 .cse56 1)) (< .cse57 0) (= 0 (let ((.cse58 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse62 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse12 .cse62 (+ (* .cse57 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse62))))))) (let ((.cse59 (let ((.cse60 (select .cse58 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse61 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 (* v_z_3 4)))) (store .cse60 .cse61 (+ (select .cse60 .cse61) (* .cse57 |c_ULTIMATE.start_main_~num~0#1|)))))) (+ (select (select (store .cse58 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse59) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse59 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))))))) (< 2147483647 (+ .cse14 v_z_3)) (< v_z_3 0))) (forall ((v_z_1 Int)) (or (< (+ .cse14 v_z_1) 6442450944) (forall ((v_y_1 Int)) (let ((.cse68 (* 4294967295 v_z_1)) (.cse69 (* v_y_1 4294967296))) (let ((.cse66 (+ .cse68 .cse69))) (or (= (let ((.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse67 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse12 .cse67 (+ (* .cse66 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse67))))))) (let ((.cse64 (select .cse63 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select (select (store .cse63 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse65 (+ (* v_z_1 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 (- 34359738368)))) (store .cse64 .cse65 (+ (* .cse66 |c_ULTIMATE.start_main_~num~0#1|) (select .cse64 .cse65))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse64 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|))) 0) (< c_~ARR_SIZE~0 (+ .cse68 .cse69 1)) (< .cse66 0))))) (< 4294967295 v_z_1))) (forall ((v_z_3 Int)) (or (forall ((v_y_3 Int)) (let ((.cse75 (* 4294967295 v_z_3)) (.cse76 (* v_y_3 4294967296))) (let ((.cse77 (+ .cse75 .cse76))) (let ((.cse71 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse80 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse12 .cse80 (+ (* .cse77 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse12 .cse80))))))) (let ((.cse70 (select .cse71 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse73 (* .cse77 |c_ULTIMATE.start_main_~num~0#1|)) (.cse74 (* v_z_3 4))) (or (= (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse70 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse71 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse72 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 .cse74))) (store .cse70 .cse72 (+ (select .cse70 .cse72) .cse73)))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 0) (< c_~ARR_SIZE~0 (+ .cse75 .cse76 1)) (< .cse77 0) (= 0 (let ((.cse78 (let ((.cse79 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse6 .cse74))) (store .cse70 .cse79 (+ (select .cse70 .cse79) .cse73))))) (+ (select (select (store .cse71 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse78) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse78 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))))))) (< 2147483647 (+ .cse14 v_z_3)) (< v_z_3 0)))))) is different from true [2024-11-14 03:03:49,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:49,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557727247] [2024-11-14 03:03:49,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:03:49,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201863061] [2024-11-14 03:03:49,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201863061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:03:49,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1333081165] [2024-11-14 03:03:49,388 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:03:49,389 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:03:49,393 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:03:49,399 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:03:49,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:03:50,297 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:03:50,300 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:03:52,583 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '302#(and (= |ULTIMATE.start_main_~#array2~0#1.offset| 0) (= |ULTIMATE.start_main_~#array1~0#1.offset| 0) (<= 1 ~ARR_SIZE~0))' at error location [2024-11-14 03:03:52,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:03:52,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:03:52,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-14 03:03:52,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784895785] [2024-11-14 03:03:52,583 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:03:52,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:03:52,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:52,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:03:52,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=686, Unknown=6, NotChecked=54, Total=870 [2024-11-14 03:03:52,588 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:53,368 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-11-14 03:03:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:03:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-14 03:03:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:53,371 INFO L225 Difference]: With dead ends: 39 [2024-11-14 03:03:53,371 INFO L226 Difference]: Without dead ends: 36 [2024-11-14 03:03:53,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=189, Invalid=999, Unknown=6, NotChecked=66, Total=1260 [2024-11-14 03:03:53,373 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 38 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:53,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 55 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:03:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-14 03:03:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2024-11-14 03:03:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:03:53,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-14 03:03:53,391 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 18 [2024-11-14 03:03:53,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:53,392 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-14 03:03:53,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:53,392 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-14 03:03:53,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:03:53,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:53,393 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:53,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:03:53,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-14 03:03:53,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:53,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2044647272, now seen corresponding path program 2 times [2024-11-14 03:03:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195550221] [2024-11-14 03:03:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:03:53,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:53,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195550221] [2024-11-14 03:03:53,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195550221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:03:53,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29858210] [2024-11-14 03:03:53,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:03:53,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:03:53,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:03:53,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:03:53,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:03:54,073 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:03:54,074 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:03:54,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:03:54,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:03:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:03:54,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:03:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:03:54,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29858210] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:03:54,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1243352596] [2024-11-14 03:03:54,248 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:03:54,248 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:03:54,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:03:54,249 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:03:54,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:03:54,858 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:03:54,859 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:03:58,433 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '549#(and (= |ULTIMATE.start_main_~#array2~0#1.offset| 0) (= |ULTIMATE.start_main_~#array1~0#1.offset| 0) (<= 1 ~ARR_SIZE~0))' at error location [2024-11-14 03:03:58,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:03:58,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:03:58,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-14 03:03:58,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357953169] [2024-11-14 03:03:58,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:03:58,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:03:58,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:58,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:03:58,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=426, Unknown=5, NotChecked=0, Total=506 [2024-11-14 03:03:58,442 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:03:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:58,830 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2024-11-14 03:03:58,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:03:58,833 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-11-14 03:03:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:58,834 INFO L225 Difference]: With dead ends: 37 [2024-11-14 03:03:58,834 INFO L226 Difference]: Without dead ends: 24 [2024-11-14 03:03:58,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=83, Invalid=464, Unknown=5, NotChecked=0, Total=552 [2024-11-14 03:03:58,838 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:58,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 49 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:03:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-14 03:03:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2024-11-14 03:03:58,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:03:58,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-14 03:03:58,852 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 19 [2024-11-14 03:03:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:58,853 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-14 03:03:58,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:03:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-11-14 03:03:58,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:03:58,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:58,854 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:58,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:03:59,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:03:59,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:59,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:59,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1020662345, now seen corresponding path program 3 times [2024-11-14 03:03:59,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:59,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174309566] [2024-11-14 03:03:59,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:59,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:59,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:03:59,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:59,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174309566] [2024-11-14 03:03:59,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174309566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:03:59,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659779129] [2024-11-14 03:03:59,370 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:03:59,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:03:59,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:03:59,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:03:59,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:03:59,457 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:03:59,457 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:03:59,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:03:59,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:03:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:03:59,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:04:00,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659779129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:04:00,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [857831883] [2024-11-14 03:04:00,005 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:04:00,005 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:04:00,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:04:00,006 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:04:00,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:04:00,670 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:04:00,675 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:04:03,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '771#(<= 1 ~ARR_SIZE~0)' at error location [2024-11-14 03:04:03,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:04:03,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:04:03,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-14 03:04:03,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637474655] [2024-11-14 03:04:03,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:04:03,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:04:03,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:04:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=414, Unknown=8, NotChecked=0, Total=506 [2024-11-14 03:04:03,779 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:04:04,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:04,145 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-14 03:04:04,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:04:04,146 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-11-14 03:04:04,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:04,146 INFO L225 Difference]: With dead ends: 24 [2024-11-14 03:04:04,146 INFO L226 Difference]: Without dead ends: 21 [2024-11-14 03:04:04,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=101, Invalid=491, Unknown=8, NotChecked=0, Total=600 [2024-11-14 03:04:04,148 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:04,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 37 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:04:04,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-14 03:04:04,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-14 03:04:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:04:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-11-14 03:04:04,155 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 19 [2024-11-14 03:04:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:04,155 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-11-14 03:04:04,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:04:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-11-14 03:04:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:04:04,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:04,156 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:04,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:04:04,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:04:04,360 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:04,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:04,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1574717004, now seen corresponding path program 4 times [2024-11-14 03:04:04,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:04,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808400771] [2024-11-14 03:04:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:04,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:04:04,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602101684] [2024-11-14 03:04:04,421 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:04:04,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:04,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:04:04,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:04:04,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:04:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:04,522 WARN L253 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-14 03:04:04,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:04:04,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-11-14 03:04:04,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-14 03:04:05,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2024-11-14 03:04:06,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:04:06,982 INFO L349 Elim1Store]: treesize reduction 353, result has 14.1 percent of original size [2024-11-14 03:04:06,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 269 treesize of output 245 [2024-11-14 03:04:07,296 INFO L349 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2024-11-14 03:04:07,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 236 treesize of output 237 [2024-11-14 03:04:07,516 INFO L349 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2024-11-14 03:04:07,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 157 [2024-11-14 03:04:07,832 INFO L349 Elim1Store]: treesize reduction 95, result has 22.8 percent of original size [2024-11-14 03:04:07,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 70 [2024-11-14 03:04:08,293 INFO L349 Elim1Store]: treesize reduction 83, result has 19.4 percent of original size [2024-11-14 03:04:08,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 43 [2024-11-14 03:04:08,714 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 03:04:08,988 INFO L349 Elim1Store]: treesize reduction 83, result has 19.4 percent of original size [2024-11-14 03:04:08,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 43 [2024-11-14 03:04:09,965 INFO L349 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2024-11-14 03:04:09,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 44 [2024-11-14 03:04:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:04:10,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:18,370 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse18 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse15 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse8 (* .cse18 4)) (.cse16 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((v_z_7 Int)) (or (forall ((v_y_7 Int)) (let ((.cse13 (* v_y_7 4294967296)) (.cse14 (* 4294967295 v_z_7))) (let ((.cse10 (+ .cse13 .cse14))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse17 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_7) (* 17179869184 v_y_7)))) (store .cse16 .cse17 (+ (* .cse10 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse16 .cse17))))))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse0 (select .cse5 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse3 (select .cse5 .cse15)) (.cse7 (* .cse10 |c_ULTIMATE.start_main_~num~0#1|)) (.cse9 (* v_z_7 4))) (or (= (let ((.cse1 (select (store .cse4 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse6 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 .cse9))) (store .cse5 .cse6 (+ (select .cse5 .cse6) .cse7)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse0 (select .cse1 .cse2) |c_ULTIMATE.start_main_~sum~0#1| .cse3 (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< .cse10 0) (= (let ((.cse11 (select (store .cse4 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse12 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (- 34359738368) .cse9))) (store .cse5 .cse12 (+ (select .cse5 .cse12) .cse7)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse0 (select .cse11 .cse2) |c_ULTIMATE.start_main_~sum~0#1| .cse3 (select .cse11 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< c_~ARR_SIZE~0 (+ .cse13 .cse14 1))))))))) (< (+ .cse18 v_z_7) 6442450944) (< 4294967295 v_z_7))) (forall ((v_z_7 Int)) (or (< (+ .cse18 v_z_7) 6442450944) (< 4294967295 v_z_7) (forall ((v_y_7 Int)) (let ((.cse25 (* v_y_7 4294967296)) (.cse26 (* 4294967295 v_z_7))) (let ((.cse19 (+ .cse25 .cse26))) (or (< .cse19 0) (= (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse24 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_7) (* 17179869184 v_y_7)))) (store .cse16 .cse24 (+ (* .cse19 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse16 .cse24))))))) (let ((.cse20 (select .cse22 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse21 (select (store .cse22 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse23 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (- 34359738368) (* v_z_7 4)))) (store .cse20 .cse23 (+ (select .cse20 .cse23) (* .cse19 |c_ULTIMATE.start_main_~num~0#1|))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse20 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse21 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse20 .cse15) (select .cse21 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0) (< c_~ARR_SIZE~0 (+ .cse25 .cse26 1)))))))) (forall ((v_z_7 Int)) (let ((.cse27 (+ .cse18 v_z_7))) (or (< 4294967295 .cse27) (forall ((v_y_7 Int)) (let ((.cse39 (* v_y_7 4294967296)) (.cse40 (* 4294967295 v_z_7))) (let ((.cse36 (+ .cse39 .cse40))) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse41 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_7) (* 17179869184 v_y_7)))) (store .cse16 .cse41 (+ (* .cse36 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse16 .cse41))))))) (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse28 (select .cse32 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse30 (select .cse32 .cse15)) (.cse34 (* .cse36 |c_ULTIMATE.start_main_~num~0#1|)) (.cse35 (* v_z_7 4))) (or (= (let ((.cse29 (select (store .cse31 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse33 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 .cse35))) (store .cse32 .cse33 (+ (select .cse32 .cse33) .cse34)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse28 (select .cse29 .cse2) |c_ULTIMATE.start_main_~sum~0#1| .cse30 (select .cse29 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< .cse36 0) (= (let ((.cse37 (select (store .cse31 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse38 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (- 34359738368) .cse35))) (store .cse32 .cse38 (+ (select .cse32 .cse38) .cse34)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse28 (select .cse37 .cse2) |c_ULTIMATE.start_main_~sum~0#1| .cse30 (select .cse37 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< c_~ARR_SIZE~0 (+ .cse39 .cse40 1))))))))) (< v_z_7 0) (< .cse27 2147483648)))) (forall ((v_z_5 Int)) (let ((.cse42 (+ .cse18 v_z_5))) (or (< 6442450943 .cse42) (< 4294967295 v_z_5) (< .cse42 4294967296) (forall ((v_y_5 Int)) (let ((.cse43 (* 4294967295 v_z_5)) (.cse44 (* v_y_5 4294967296))) (let ((.cse50 (+ .cse43 .cse44))) (or (< c_~ARR_SIZE~0 (+ .cse43 .cse44 1)) (= 0 (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse51 (+ (* 17179869180 v_z_5) (* 17179869184 v_y_5) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse16 .cse51 (+ (select .cse16 .cse51) (* .cse50 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse45 (let ((.cse48 (select .cse47 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse49 (+ (- 17179869184) (* v_z_5 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8))) (store .cse48 .cse49 (+ (* .cse50 |c_ULTIMATE.start_main_~num~0#1|) (select .cse48 .cse49)))))) (let ((.cse46 (select (store .cse47 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse45) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse45 .cse15) (select .cse46 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse46 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse45 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))) (< .cse50 0)))))))) (forall ((v_z_5 Int)) (or (forall ((v_y_5 Int)) (let ((.cse52 (* 4294967295 v_z_5)) (.cse53 (* v_y_5 4294967296))) (let ((.cse59 (+ .cse52 .cse53))) (or (< c_~ARR_SIZE~0 (+ .cse52 .cse53 1)) (= (let ((.cse56 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse60 (+ (* 17179869180 v_z_5) (* 17179869184 v_y_5) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse16 .cse60 (+ (select .cse16 .cse60) (* .cse59 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse54 (let ((.cse57 (select .cse56 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse58 (+ (* v_z_5 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8))) (store .cse57 .cse58 (+ (select .cse57 .cse58) (* .cse59 |c_ULTIMATE.start_main_~num~0#1|)))))) (let ((.cse55 (select (store .cse56 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse54) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse54 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse55 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse54 .cse15) (select .cse55 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0) (< .cse59 0))))) (< 2147483647 (+ .cse18 v_z_5)) (< v_z_5 0))) (forall ((v_z_5 Int)) (let ((.cse61 (+ .cse18 v_z_5))) (or (< 6442450943 .cse61) (< 4294967295 v_z_5) (< .cse61 4294967296) (forall ((v_y_5 Int)) (let ((.cse68 (* 4294967295 v_z_5)) (.cse69 (* v_y_5 4294967296))) (let ((.cse73 (+ .cse68 .cse69))) (let ((.cse64 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse74 (+ (* 17179869180 v_z_5) (* 17179869184 v_y_5) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse16 .cse74 (+ (select .cse16 .cse74) (* .cse73 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse66 (* .cse73 |c_ULTIMATE.start_main_~num~0#1|)) (.cse63 (select .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse67 (* v_z_5 4))) (or (= 0 (let ((.cse62 (select (store .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse65 (+ .cse67 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8))) (store .cse63 .cse65 (+ (select .cse63 .cse65) .cse66)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse62 .cse2) (select .cse63 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse63 .cse15) (select .cse62 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) (< c_~ARR_SIZE~0 (+ .cse68 .cse69 1)) (= 0 (let ((.cse70 (let ((.cse72 (+ (- 17179869184) .cse67 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8))) (store .cse63 .cse72 (+ .cse66 (select .cse63 .cse72)))))) (let ((.cse71 (select (store .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse70) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse70 .cse15) (select .cse71 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse71 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse70 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) (< .cse73 0)))))))))) (forall ((v_z_5 Int)) (or (< 2147483647 (+ .cse18 v_z_5)) (forall ((v_y_5 Int)) (let ((.cse75 (* 4294967295 v_z_5)) (.cse76 (* v_y_5 4294967296))) (let ((.cse86 (+ .cse75 .cse76))) (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse87 (+ (* 17179869180 v_z_5) (* 17179869184 v_y_5) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse16 .cse87 (+ (select .cse16 .cse87) (* .cse86 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse78 (select .cse79 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse81 (* .cse86 |c_ULTIMATE.start_main_~num~0#1|)) (.cse82 (* v_z_5 4))) (or (< c_~ARR_SIZE~0 (+ .cse75 .cse76 1)) (= (let ((.cse77 (select (store .cse79 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse80 (+ (- 17179869184) .cse82 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8))) (store .cse78 .cse80 (+ .cse81 (select .cse78 .cse80))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse77 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse77 .cse2) (select .cse78 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse78 .cse15))) 0) (= (let ((.cse83 (let ((.cse85 (+ .cse82 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8))) (store .cse78 .cse85 (+ (select .cse78 .cse85) .cse81))))) (let ((.cse84 (select (store .cse79 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse83) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse83 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse84 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse83 .cse15) (select .cse84 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0) (< .cse86 0))))))) (< v_z_5 0))) (forall ((v_z_7 Int)) (let ((.cse96 (+ .cse18 v_z_7))) (or (forall ((v_y_7 Int)) (let ((.cse94 (* v_y_7 4294967296)) (.cse95 (* 4294967295 v_z_7))) (let ((.cse92 (+ .cse94 .cse95))) (or (= (let ((.cse90 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse93 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_7) (* 17179869184 v_y_7)))) (store .cse16 .cse93 (+ (* .cse92 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse16 .cse93))))))) (let ((.cse88 (select .cse90 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse89 (select (store .cse90 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse91 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (* v_z_7 4)))) (store .cse88 .cse91 (+ (select .cse88 .cse91) (* .cse92 |c_ULTIMATE.start_main_~num~0#1|))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse88 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse89 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse88 .cse15) (select .cse89 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0) (< .cse92 0) (< c_~ARR_SIZE~0 (+ .cse94 .cse95 1)))))) (< 4294967295 .cse96) (< v_z_7 0) (< .cse96 2147483648))))))) is different from true [2024-11-14 03:04:18,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:18,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808400771] [2024-11-14 03:04:18,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:04:18,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602101684] [2024-11-14 03:04:18,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602101684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:18,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2139734937] [2024-11-14 03:04:18,377 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:04:18,377 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:04:18,377 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:04:18,377 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:04:18,377 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:04:18,898 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:04:18,902 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:04:23,390 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '965#(<= 1 ~ARR_SIZE~0)' at error location [2024-11-14 03:04:23,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:04:23,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:04:23,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-14 03:04:23,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94842977] [2024-11-14 03:04:23,390 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:04:23,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 03:04:23,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 03:04:23,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=960, Unknown=7, NotChecked=64, Total=1190 [2024-11-14 03:04:23,393 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:04:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:24,971 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2024-11-14 03:04:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:04:24,971 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-11-14 03:04:24,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:24,972 INFO L225 Difference]: With dead ends: 39 [2024-11-14 03:04:24,972 INFO L226 Difference]: Without dead ends: 36 [2024-11-14 03:04:24,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=225, Invalid=1332, Unknown=7, NotChecked=76, Total=1640 [2024-11-14 03:04:24,975 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 61 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:24,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 61 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:04:24,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-14 03:04:24,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2024-11-14 03:04:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:04:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-11-14 03:04:24,989 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 20 [2024-11-14 03:04:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:24,989 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-11-14 03:04:24,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:04:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-11-14 03:04:24,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:04:24,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:24,990 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:25,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:04:25,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:25,195 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:25,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:25,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1570542249, now seen corresponding path program 5 times [2024-11-14 03:04:25,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:25,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607099435] [2024-11-14 03:04:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:04:25,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:25,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607099435] [2024-11-14 03:04:25,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607099435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:25,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341522244] [2024-11-14 03:04:25,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:04:25,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:25,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:04:25,535 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:04:25,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:04:25,629 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:04:25,630 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:04:25,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:04:25,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:04:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:04:25,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:04:26,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341522244] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:04:26,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [448109069] [2024-11-14 03:04:26,215 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:04:26,215 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:04:26,215 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:04:26,215 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:04:26,216 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:04:26,675 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:04:26,679 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:04:30,499 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1235#(<= 1 ~ARR_SIZE~0)' at error location [2024-11-14 03:04:30,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:04:30,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:04:30,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-14 03:04:30,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702179822] [2024-11-14 03:04:30,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:04:30,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:04:30,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:30,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:04:30,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=551, Unknown=4, NotChecked=0, Total=650 [2024-11-14 03:04:30,502 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:04:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:30,866 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2024-11-14 03:04:30,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:04:30,867 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-14 03:04:30,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:30,868 INFO L225 Difference]: With dead ends: 50 [2024-11-14 03:04:30,868 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 03:04:30,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=114, Invalid=638, Unknown=4, NotChecked=0, Total=756 [2024-11-14 03:04:30,869 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:30,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 38 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:04:30,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 03:04:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2024-11-14 03:04:30,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:04:30,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2024-11-14 03:04:30,884 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2024-11-14 03:04:30,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:30,884 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-11-14 03:04:30,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:04:30,884 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2024-11-14 03:04:30,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:04:30,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:30,885 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:30,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:04:31,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 03:04:31,086 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:31,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash -108219416, now seen corresponding path program 6 times [2024-11-14 03:04:31,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:31,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660962165] [2024-11-14 03:04:31,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:31,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:04:31,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:31,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660962165] [2024-11-14 03:04:31,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660962165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:31,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264190609] [2024-11-14 03:04:31,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:04:31,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:31,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:04:31,521 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:04:31,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:04:31,620 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:04:31,620 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:04:31,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:04:31,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:04:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:04:31,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:04:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264190609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:04:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [25799540] [2024-11-14 03:04:32,232 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:04:32,232 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:04:32,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:04:32,233 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:04:32,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:04:32,720 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:04:32,726 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:04:35,135 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1528#(and (= |ULTIMATE.start_main_~#array2~0#1.offset| 0) (= |ULTIMATE.start_main_~#array1~0#1.offset| 0) (<= 1 ~ARR_SIZE~0))' at error location [2024-11-14 03:04:35,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:04:35,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:04:35,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-14 03:04:35,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601743527] [2024-11-14 03:04:35,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:04:35,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:04:35,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:35,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:04:35,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=550, Unknown=4, NotChecked=0, Total=650 [2024-11-14 03:04:35,138 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:04:35,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:35,720 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2024-11-14 03:04:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:04:35,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-14 03:04:35,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:35,722 INFO L225 Difference]: With dead ends: 45 [2024-11-14 03:04:35,722 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 03:04:35,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=120, Invalid=688, Unknown=4, NotChecked=0, Total=812 [2024-11-14 03:04:35,724 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:35,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 86 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:04:35,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 03:04:35,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-11-14 03:04:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:04:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-11-14 03:04:35,740 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 21 [2024-11-14 03:04:35,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:35,740 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-11-14 03:04:35,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:04:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-11-14 03:04:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 03:04:35,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:35,741 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:35,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:04:35,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 03:04:35,942 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:35,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:35,942 INFO L85 PathProgramCache]: Analyzing trace with hash 939120781, now seen corresponding path program 7 times [2024-11-14 03:04:35,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:35,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221141896] [2024-11-14 03:04:35,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:35,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:04:36,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279038332] [2024-11-14 03:04:36,082 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:04:36,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:36,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:04:36,086 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:04:36,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:04:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:36,230 WARN L253 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-14 03:04:36,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:04:36,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-11-14 03:04:36,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-14 03:04:36,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2024-11-14 03:04:36,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 55 [2024-11-14 03:04:38,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:04:39,086 INFO L349 Elim1Store]: treesize reduction 525, result has 14.8 percent of original size [2024-11-14 03:04:39,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 9 disjoint index pairs (out of 105 index pairs), introduced 16 new quantified variables, introduced 69 case distinctions, treesize of input 240 treesize of output 266 [2024-11-14 03:04:39,410 INFO L349 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2024-11-14 03:04:39,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 219 treesize of output 216 [2024-11-14 03:04:39,596 INFO L349 Elim1Store]: treesize reduction 141, result has 0.7 percent of original size [2024-11-14 03:04:39,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 165 [2024-11-14 03:04:39,989 INFO L349 Elim1Store]: treesize reduction 139, result has 24.5 percent of original size [2024-11-14 03:04:39,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 90 [2024-11-14 03:04:40,425 INFO L349 Elim1Store]: treesize reduction 109, result has 29.2 percent of original size [2024-11-14 03:04:40,425 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 6 case distinctions, treesize of input 46 treesize of output 71 [2024-11-14 03:04:41,318 INFO L349 Elim1Store]: treesize reduction 103, result has 27.5 percent of original size [2024-11-14 03:04:41,319 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 157 treesize of output 175 [2024-11-14 03:04:45,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 64 [2024-11-14 03:04:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:04:45,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:56,665 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse19 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse3 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (.cse5 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (.cse10 (* .cse19 4)) (.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((v_z_17 Int)) (or (< v_z_17 0) (forall ((v_y_17 Int)) (let ((.cse14 (* v_z_17 4294967295)) (.cse15 (* v_y_17 4294967296))) (let ((.cse16 (+ .cse14 .cse15))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse18 (+ (* 17179869180 v_z_17) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_17)))) (store .cse17 .cse18 (+ (* .cse16 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse18))))))) (let ((.cse2 (select .cse6 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse8 (* .cse16 |c_ULTIMATE.start_main_~num~0#1|)) (.cse9 (* v_z_17 4))) (or (= (let ((.cse0 (select (store .cse6 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse7 (+ (- 17179869184) .cse9 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse2 .cse7 (+ (select .cse2 .cse7) .cse8)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 .cse1) (select .cse2 .cse3) |c_ULTIMATE.start_main_~sum~0#1| (select .cse2 .cse4) (select .cse0 .cse5) (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (= (let ((.cse12 (let ((.cse13 (+ .cse9 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse2 .cse13 (+ (select .cse2 .cse13) .cse8))))) (let ((.cse11 (select (store .cse6 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse12) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse11 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse11 .cse5) |c_ULTIMATE.start_main_~sum~0#1| (select .cse11 .cse1) (select .cse12 .cse3) (select .cse12 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse12 .cse4)))) 0) (< c_~ARR_SIZE~0 (+ .cse14 .cse15 1)) (< .cse16 0))))))) (< 2147483647 (+ .cse19 v_z_17)))) (forall ((v_z_19 Int)) (or (forall ((v_y_19 Int)) (let ((.cse20 (* v_y_19 4294967296)) (.cse21 (* v_z_19 4294967295))) (let ((.cse22 (+ .cse20 .cse21))) (or (< c_~ARR_SIZE~0 (+ .cse20 .cse21 1)) (< .cse22 0) (= (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse27 (+ (* 17179869180 v_z_19) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_19)))) (store .cse17 .cse27 (+ (* .cse22 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse27))))))) (let ((.cse23 (select .cse25 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse24 (select (store .cse25 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse26 (+ (* v_z_19 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10 (- 34359738368)))) (store .cse23 .cse26 (+ (select .cse23 .cse26) (* .cse22 |c_ULTIMATE.start_main_~num~0#1|))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse23 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse23 .cse4) |c_ULTIMATE.start_main_~sum~0#1| (select .cse24 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse24 .cse1) (select .cse23 .cse3) (select .cse24 .cse5))))) 0))))) (< (+ .cse19 v_z_19) 6442450944) (< 4294967295 v_z_19))) (forall ((v_z_17 Int)) (let ((.cse41 (+ .cse19 v_z_17))) (or (forall ((v_y_17 Int)) (let ((.cse28 (* v_z_17 4294967295)) (.cse29 (* v_y_17 4294967296))) (let ((.cse36 (+ .cse28 .cse29))) (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse40 (+ (* 17179869180 v_z_17) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_17)))) (store .cse17 .cse40 (+ (* .cse36 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse40))))))) (let ((.cse31 (select .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse34 (* .cse36 |c_ULTIMATE.start_main_~num~0#1|)) (.cse35 (* v_z_17 4))) (or (< c_~ARR_SIZE~0 (+ .cse28 .cse29 1)) (= (let ((.cse30 (select (store .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse33 (+ .cse35 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse31 .cse33 (+ (select .cse31 .cse33) .cse34)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse30 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse31 .cse3) (select .cse30 .cse5) |c_ULTIMATE.start_main_~sum~0#1| (select .cse30 .cse1) (select .cse31 .cse4) (select .cse31 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) 0) (< .cse36 0) (= 0 (let ((.cse37 (let ((.cse39 (+ (- 17179869184) .cse35 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse31 .cse39 (+ (select .cse31 .cse39) .cse34))))) (let ((.cse38 (select (store .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse37) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse37 .cse3) (select .cse38 .cse1) (select .cse37 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse38 .cse5) (select .cse37 .cse4) (select .cse38 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))))))))) (< 6442450943 .cse41) (< .cse41 4294967296) (< 4294967295 v_z_17)))) (forall ((v_z_19 Int)) (or (< (+ .cse19 v_z_19) 6442450944) (< 4294967295 v_z_19) (forall ((v_y_19 Int)) (let ((.cse42 (* v_y_19 4294967296)) (.cse43 (* v_z_19 4294967295))) (let ((.cse53 (+ .cse42 .cse43))) (let ((.cse48 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse56 (+ (* 17179869180 v_z_19) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_19)))) (store .cse17 .cse56 (+ (* .cse53 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse56))))))) (let ((.cse49 (select .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse44 (select .cse49 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse45 (select .cse49 .cse4)) (.cse47 (select .cse49 .cse3)) (.cse51 (* .cse53 |c_ULTIMATE.start_main_~num~0#1|)) (.cse52 (* v_z_19 4))) (or (< c_~ARR_SIZE~0 (+ .cse42 .cse43 1)) (= (let ((.cse46 (select (store .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse50 (+ (- 17179869184) .cse52 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse49 .cse50 (+ (select .cse49 .cse50) .cse51)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse44 .cse45 |c_ULTIMATE.start_main_~sum~0#1| (select .cse46 .cse1) .cse47 (select .cse46 .cse5) (select .cse46 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< .cse53 0) (= (let ((.cse54 (select (store .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse55 (+ .cse52 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10 (- 34359738368)))) (store .cse49 .cse55 (+ (select .cse49 .cse55) .cse51)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse44 .cse45 |c_ULTIMATE.start_main_~sum~0#1| (select .cse54 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse54 .cse1) .cse47 (select .cse54 .cse5))) 0)))))))))) (forall ((v_z_17 Int)) (let ((.cse57 (+ .cse19 v_z_17))) (or (< 6442450943 .cse57) (< .cse57 4294967296) (forall ((v_y_17 Int)) (let ((.cse58 (* v_z_17 4294967295)) (.cse59 (* v_y_17 4294967296))) (let ((.cse60 (+ .cse58 .cse59))) (or (< c_~ARR_SIZE~0 (+ .cse58 .cse59 1)) (< .cse60 0) (= 0 (let ((.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse66 (+ (* 17179869180 v_z_17) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_17)))) (store .cse17 .cse66 (+ (* .cse60 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse66))))))) (let ((.cse61 (let ((.cse64 (select .cse63 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse65 (+ (- 17179869184) (* v_z_17 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse64 .cse65 (+ (select .cse64 .cse65) (* .cse60 |c_ULTIMATE.start_main_~num~0#1|)))))) (let ((.cse62 (select (store .cse63 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse61) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse61 .cse3) (select .cse62 .cse1) (select .cse61 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse62 .cse5) (select .cse61 .cse4) (select .cse62 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))))))))) (< 4294967295 v_z_17)))) (forall ((v_z_17 Int)) (or (forall ((v_y_17 Int)) (let ((.cse74 (* v_z_17 4294967295)) (.cse75 (* v_y_17 4294967296))) (let ((.cse72 (+ .cse74 .cse75))) (or (= (let ((.cse69 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse73 (+ (* 17179869180 v_z_17) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_17)))) (store .cse17 .cse73 (+ (* .cse72 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse73))))))) (let ((.cse68 (let ((.cse70 (select .cse69 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse71 (+ (* v_z_17 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse70 .cse71 (+ (select .cse70 .cse71) (* .cse72 |c_ULTIMATE.start_main_~num~0#1|)))))) (let ((.cse67 (select (store .cse69 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse68) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse67 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse67 .cse5) |c_ULTIMATE.start_main_~sum~0#1| (select .cse67 .cse1) (select .cse68 .cse3) (select .cse68 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse68 .cse4))))) 0) (< c_~ARR_SIZE~0 (+ .cse74 .cse75 1)) (< .cse72 0))))) (< v_z_17 0) (< 2147483647 (+ .cse19 v_z_17)))) (forall ((v_z_19 Int)) (let ((.cse76 (+ .cse19 v_z_19))) (or (< 4294967295 .cse76) (< v_z_19 0) (< .cse76 2147483648) (forall ((v_y_19 Int)) (let ((.cse77 (* v_y_19 4294967296)) (.cse78 (* v_z_19 4294967295))) (let ((.cse88 (+ .cse77 .cse78))) (let ((.cse83 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse91 (+ (* 17179869180 v_z_19) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_19)))) (store .cse17 .cse91 (+ (* .cse88 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse91))))))) (let ((.cse84 (select .cse83 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse79 (select .cse84 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse80 (select .cse84 .cse4)) (.cse82 (select .cse84 .cse3)) (.cse86 (* .cse88 |c_ULTIMATE.start_main_~num~0#1|)) (.cse87 (* v_z_19 4))) (or (< c_~ARR_SIZE~0 (+ .cse77 .cse78 1)) (= (let ((.cse81 (select (store .cse83 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse85 (+ (- 17179869184) .cse87 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse84 .cse85 (+ (select .cse84 .cse85) .cse86)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse79 .cse80 |c_ULTIMATE.start_main_~sum~0#1| (select .cse81 .cse1) .cse82 (select .cse81 .cse5) (select .cse81 |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< .cse88 0) (= (let ((.cse89 (select (store .cse83 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse90 (+ .cse87 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10 (- 34359738368)))) (store .cse84 .cse90 (+ (select .cse84 .cse90) .cse86)))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse79 .cse80 |c_ULTIMATE.start_main_~sum~0#1| (select .cse89 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse89 .cse1) .cse82 (select .cse89 .cse5))) 0))))))))))) (forall ((v_z_19 Int)) (let ((.cse100 (+ .cse19 v_z_19))) (or (forall ((v_y_19 Int)) (let ((.cse92 (* v_y_19 4294967296)) (.cse93 (* v_z_19 4294967295))) (let ((.cse98 (+ .cse92 .cse93))) (or (< c_~ARR_SIZE~0 (+ .cse92 .cse93 1)) (= (let ((.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse99 (+ (* 17179869180 v_z_19) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_19)))) (store .cse17 .cse99 (+ (* .cse98 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse99))))))) (let ((.cse94 (select .cse96 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse95 (select (store .cse96 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse97 (+ (- 17179869184) (* v_z_19 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse10))) (store .cse94 .cse97 (+ (select .cse94 .cse97) (* .cse98 |c_ULTIMATE.start_main_~num~0#1|))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse94 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse94 .cse4) |c_ULTIMATE.start_main_~sum~0#1| (select .cse95 .cse1) (select .cse94 .cse3) (select .cse95 .cse5) (select .cse95 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0) (< .cse98 0))))) (< 4294967295 .cse100) (< v_z_19 0) (< .cse100 2147483648))))))) is different from true [2024-11-14 03:04:56,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:56,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221141896] [2024-11-14 03:04:56,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:04:56,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279038332] [2024-11-14 03:04:56,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279038332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:56,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1975423477] [2024-11-14 03:04:56,672 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:04:56,672 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:04:56,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:04:56,672 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:04:56,673 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:04:57,149 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:04:57,152 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:05:02,166 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1697#(<= 1 ~ARR_SIZE~0)' at error location [2024-11-14 03:05:02,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:05:02,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:05:02,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-14 03:05:02,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522274020] [2024-11-14 03:05:02,167 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:05:02,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:05:02,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:05:02,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:05:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1048, Unknown=6, NotChecked=66, Total=1260 [2024-11-14 03:05:02,168 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 19 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:05:05,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:05:05,142 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2024-11-14 03:05:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:05:05,143 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-11-14 03:05:05,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:05:05,144 INFO L225 Difference]: With dead ends: 58 [2024-11-14 03:05:05,144 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 03:05:05,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=202, Invalid=1518, Unknown=6, NotChecked=80, Total=1806 [2024-11-14 03:05:05,146 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:05:05,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 87 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:05:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 03:05:05,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2024-11-14 03:05:05,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:05:05,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2024-11-14 03:05:05,171 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 22 [2024-11-14 03:05:05,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:05:05,171 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2024-11-14 03:05:05,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:05:05,172 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2024-11-14 03:05:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:05:05,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:05:05,173 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:05:05,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:05:05,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 03:05:05,374 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:05:05,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:05:05,374 INFO L85 PathProgramCache]: Analyzing trace with hash -953071480, now seen corresponding path program 8 times [2024-11-14 03:05:05,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:05:05,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166432635] [2024-11-14 03:05:05,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:05:05,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:05:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:05:05,926 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:05:05,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:05:05,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166432635] [2024-11-14 03:05:05,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166432635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:05:05,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343266239] [2024-11-14 03:05:05,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:05:05,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:05:05,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:05:05,929 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:05:05,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:05:06,130 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 03:05:06,130 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:05:06,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:05:06,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:05:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:05:06,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:05:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:05:06,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343266239] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:05:06,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [659039877] [2024-11-14 03:05:06,880 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:05:06,880 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:05:06,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:05:06,881 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:05:06,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:05:07,284 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:05:07,288 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:05:12,335 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2150#(<= 1 ~ARR_SIZE~0)' at error location [2024-11-14 03:05:12,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:05:12,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:05:12,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2024-11-14 03:05:12,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773227382] [2024-11-14 03:05:12,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:05:12,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 03:05:12,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:05:12,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 03:05:12,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=691, Unknown=5, NotChecked=0, Total=812 [2024-11-14 03:05:12,337 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:05:13,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:05:13,442 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2024-11-14 03:05:13,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:05:13,443 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-11-14 03:05:13,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:05:13,444 INFO L225 Difference]: With dead ends: 70 [2024-11-14 03:05:13,444 INFO L226 Difference]: Without dead ends: 61 [2024-11-14 03:05:13,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 44 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=149, Invalid=838, Unknown=5, NotChecked=0, Total=992 [2024-11-14 03:05:13,445 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:05:13,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 54 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:05:13,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-14 03:05:13,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2024-11-14 03:05:13,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:05:13,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2024-11-14 03:05:13,474 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 23 [2024-11-14 03:05:13,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:05:13,475 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2024-11-14 03:05:13,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:05:13,475 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2024-11-14 03:05:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:05:13,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:05:13,476 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:05:13,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 03:05:13,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:05:13,677 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:05:13,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:05:13,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1455075543, now seen corresponding path program 9 times [2024-11-14 03:05:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:05:13,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342264524] [2024-11-14 03:05:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:05:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:05:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:05:14,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:05:14,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:05:14,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342264524] [2024-11-14 03:05:14,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342264524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:05:14,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612257534] [2024-11-14 03:05:14,662 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:05:14,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:05:14,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:05:14,665 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:05:14,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:05:14,775 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:05:14,775 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:05:14,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:05:14,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:05:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:05:15,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:05:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:05:16,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612257534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:05:16,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1288485079] [2024-11-14 03:05:16,175 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:05:16,175 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:05:16,175 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:05:16,175 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:05:16,175 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:05:16,773 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:05:16,778 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:05:22,734 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2522#(<= 1 ~ARR_SIZE~0)' at error location [2024-11-14 03:05:22,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:05:22,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:05:22,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2024-11-14 03:05:22,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671610619] [2024-11-14 03:05:22,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:05:22,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 03:05:22,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:05:22,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 03:05:22,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=676, Unknown=10, NotChecked=0, Total=812 [2024-11-14 03:05:22,737 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:05:23,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:05:23,952 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2024-11-14 03:05:23,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:05:23,953 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-11-14 03:05:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:05:23,954 INFO L225 Difference]: With dead ends: 64 [2024-11-14 03:05:23,954 INFO L226 Difference]: Without dead ends: 61 [2024-11-14 03:05:23,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 43 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=172, Invalid=874, Unknown=10, NotChecked=0, Total=1056 [2024-11-14 03:05:23,955 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:05:23,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 77 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:05:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-14 03:05:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2024-11-14 03:05:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:05:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2024-11-14 03:05:23,983 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 23 [2024-11-14 03:05:23,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:05:23,983 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2024-11-14 03:05:23,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:05:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2024-11-14 03:05:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:05:23,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:05:23,984 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:05:24,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 03:05:24,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:05:24,189 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:05:24,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:05:24,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2136253804, now seen corresponding path program 10 times [2024-11-14 03:05:24,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:05:24,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910988376] [2024-11-14 03:05:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:05:24,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:05:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:05:24,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685084544] [2024-11-14 03:05:24,260 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:05:24,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:05:24,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:05:24,263 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:05:24,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:05:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:05:24,545 WARN L253 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-11-14 03:05:24,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:05:24,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-11-14 03:05:25,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-14 03:05:25,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2024-11-14 03:05:25,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 55 [2024-11-14 03:05:26,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 75 [2024-11-14 03:05:29,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:05:29,191 INFO L224 Elim1Store]: Index analysis took 128 ms [2024-11-14 03:05:31,000 INFO L349 Elim1Store]: treesize reduction 697, result has 15.1 percent of original size [2024-11-14 03:05:31,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 13 disjoint index pairs (out of 171 index pairs), introduced 20 new quantified variables, introduced 108 case distinctions, treesize of input 268 treesize of output 318 [2024-11-14 03:05:31,505 INFO L349 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2024-11-14 03:05:31,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 259 treesize of output 248 [2024-11-14 03:05:31,795 INFO L349 Elim1Store]: treesize reduction 188, result has 0.5 percent of original size [2024-11-14 03:05:31,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 106 treesize of output 173 [2024-11-14 03:05:32,540 INFO L349 Elim1Store]: treesize reduction 183, result has 25.3 percent of original size [2024-11-14 03:05:32,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 134 treesize of output 110 [2024-11-14 03:05:33,398 INFO L349 Elim1Store]: treesize reduction 143, result has 30.2 percent of original size [2024-11-14 03:05:33,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 51 treesize of output 91 [2024-11-14 03:05:34,938 INFO L349 Elim1Store]: treesize reduction 135, result has 28.6 percent of original size [2024-11-14 03:05:34,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 199 treesize of output 228 [2024-11-14 03:05:42,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:05:42,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 4 case distinctions, treesize of input 249 treesize of output 163 [2024-11-14 03:05:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:05:44,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:05:59,591 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 12)) (.cse5 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 12)) (.cse7 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse6 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (.cse8 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (.cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse14 (* .cse0 4)) (.cse20 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((v_z_29 Int)) (or (< 2147483647 (+ .cse0 v_z_29)) (forall ((v_y_29 Int)) (let ((.cse15 (* v_z_29 4294967295)) (.cse16 (* v_y_29 4294967296))) (let ((.cse17 (+ .cse15 .cse16))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse21 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_29) (* 17179869180 v_z_29)))) (store .cse20 .cse21 (+ (select .cse20 .cse21) (* .cse17 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse12 (* .cse17 |c_ULTIMATE.start_main_~num~0#1|)) (.cse10 (select .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse13 (* v_z_29 4))) (or (= (let ((.cse3 (let ((.cse11 (+ .cse13 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14))) (store .cse10 .cse11 (+ .cse12 (select .cse10 .cse11)))))) (let ((.cse1 (select (store .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse3) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse1 .cse2) (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse3 .cse4) (select .cse3 .cse5) (select .cse3 .cse6) |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 .cse7) (select .cse1 .cse8)))) 0) (< c_~ARR_SIZE~0 (+ .cse15 1 .cse16)) (< .cse17 0) (= (let ((.cse18 (select (store .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse19 (+ .cse13 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14))) (store .cse10 .cse19 (+ .cse12 (select .cse10 .cse19))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse10 .cse5) (select .cse18 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse10 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse18 .cse7) (select .cse10 .cse6) (select .cse18 .cse8) (select .cse10 .cse4) (select .cse18 .cse2))) 0))))))) (< v_z_29 0))) (forall ((v_z_28 Int)) (let ((.cse30 (+ .cse0 v_z_28))) (or (forall ((v_y_28 Int)) (let ((.cse23 (* v_y_28 4294967296)) (.cse24 (* v_z_28 4294967295))) (let ((.cse22 (+ .cse23 .cse24))) (or (< .cse22 0) (< c_~ARR_SIZE~0 (+ .cse23 .cse24 1)) (= (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse29 (+ (* 17179869180 v_z_28) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_28)))) (store .cse20 .cse29 (+ (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse22) (select .cse20 .cse29))))))) (let ((.cse25 (select .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse26 (select (store .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse28 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14 (* v_z_28 4)))) (store .cse25 .cse28 (+ (* |c_ULTIMATE.start_main_~num~0#1| .cse22) (select .cse25 .cse28))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse25 .cse4) |c_ULTIMATE.start_main_~sum~0#1| (select .cse26 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse25 .cse5) (select .cse25 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse26 .cse2) (select .cse26 .cse7) (select .cse25 .cse6) (select .cse26 .cse8))))) 0))))) (< v_z_28 0) (< .cse30 2147483648) (< 4294967295 .cse30)))) (forall ((v_z_28 Int)) (let ((.cse31 (+ .cse0 v_z_28))) (or (< v_z_28 0) (< .cse31 2147483648) (forall ((v_y_28 Int)) (let ((.cse43 (* v_y_28 4294967296)) (.cse44 (* v_z_28 4294967295))) (let ((.cse42 (+ .cse43 .cse44))) (let ((.cse37 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse47 (+ (* 17179869180 v_z_28) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_28)))) (store .cse20 .cse47 (+ (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse42) (select .cse20 .cse47))))))) (let ((.cse38 (select .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse32 (select .cse38 .cse4)) (.cse34 (select .cse38 .cse5)) (.cse35 (select .cse38 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse36 (select .cse38 .cse6)) (.cse40 (* |c_ULTIMATE.start_main_~num~0#1| .cse42)) (.cse41 (* v_z_28 4))) (or (= (let ((.cse33 (select (store .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse39 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14 .cse41 (- 34359738368)))) (store .cse38 .cse39 (+ .cse40 (select .cse38 .cse39))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse32 (select .cse33 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse33 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse33 .cse2) .cse34 .cse35 (select .cse33 .cse7) .cse36)) 0) (< .cse42 0) (< c_~ARR_SIZE~0 (+ .cse43 .cse44 1)) (= (let ((.cse45 (select (store .cse37 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse46 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14 .cse41))) (store .cse38 .cse46 (+ .cse40 (select .cse38 .cse46))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse32 |c_ULTIMATE.start_main_~sum~0#1| (select .cse45 |c_ULTIMATE.start_main_~#array1~0#1.offset|) .cse34 .cse35 (select .cse45 .cse2) (select .cse45 .cse7) .cse36 (select .cse45 .cse8))) 0)))))))) (< 4294967295 .cse31)))) (forall ((v_z_29 Int)) (let ((.cse57 (+ .cse0 v_z_29))) (or (forall ((v_y_29 Int)) (let ((.cse55 (* v_z_29 4294967295)) (.cse56 (* v_y_29 4294967296))) (let ((.cse53 (+ .cse55 .cse56))) (or (= (let ((.cse50 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse54 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_29) (* 17179869180 v_z_29)))) (store .cse20 .cse54 (+ (select .cse20 .cse54) (* .cse53 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse48 (let ((.cse51 (select .cse50 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse52 (+ (* v_z_29 4) (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14))) (store .cse51 .cse52 (+ (* .cse53 |c_ULTIMATE.start_main_~num~0#1|) (select .cse51 .cse52)))))) (let ((.cse49 (select (store .cse50 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse48) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse48 .cse5) (select .cse49 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse48 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse49 .cse7) (select .cse49 .cse8) (select .cse48 .cse4) (select .cse48 .cse6) (select .cse49 .cse2))))) 0) (< c_~ARR_SIZE~0 (+ .cse55 1 .cse56)) (< .cse53 0))))) (< .cse57 4294967296) (< 6442450943 .cse57) (< 4294967295 v_z_29)))) (forall ((v_z_28 Int)) (or (< (+ .cse0 v_z_28) 6442450944) (forall ((v_y_28 Int)) (let ((.cse64 (* v_y_28 4294967296)) (.cse65 (* v_z_28 4294967295))) (let ((.cse62 (+ .cse64 .cse65))) (or (= (let ((.cse60 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse63 (+ (* 17179869180 v_z_28) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_28)))) (store .cse20 .cse63 (+ (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse62) (select .cse20 .cse63))))))) (let ((.cse58 (select .cse60 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse59 (select (store .cse60 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse61 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14 (* v_z_28 4) (- 34359738368)))) (store .cse58 .cse61 (+ (* |c_ULTIMATE.start_main_~num~0#1| .cse62) (select .cse58 .cse61))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse58 .cse4) (select .cse59 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse59 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse59 .cse2) (select .cse58 .cse5) (select .cse58 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse59 .cse7) (select .cse58 .cse6))))) 0) (< .cse62 0) (< c_~ARR_SIZE~0 (+ .cse64 .cse65 1)))))) (< 4294967295 v_z_28))) (forall ((v_z_29 Int)) (or (< 2147483647 (+ .cse0 v_z_29)) (forall ((v_y_29 Int)) (let ((.cse73 (* v_z_29 4294967295)) (.cse74 (* v_y_29 4294967296))) (let ((.cse71 (+ .cse73 .cse74))) (or (= (let ((.cse68 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse72 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_29) (* 17179869180 v_z_29)))) (store .cse20 .cse72 (+ (select .cse20 .cse72) (* .cse71 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse67 (let ((.cse69 (select .cse68 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse70 (+ (* v_z_29 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14))) (store .cse69 .cse70 (+ (* .cse71 |c_ULTIMATE.start_main_~num~0#1|) (select .cse69 .cse70)))))) (let ((.cse66 (select (store .cse68 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse67) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse66 .cse2) (select .cse67 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse66 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse67 .cse4) (select .cse67 .cse5) (select .cse67 .cse6) |c_ULTIMATE.start_main_~sum~0#1| (select .cse66 .cse7) (select .cse66 .cse8))))) 0) (< c_~ARR_SIZE~0 (+ .cse73 1 .cse74)) (< .cse71 0))))) (< v_z_29 0))) (forall ((v_z_28 Int)) (or (< (+ .cse0 v_z_28) 6442450944) (forall ((v_y_28 Int)) (let ((.cse86 (* v_y_28 4294967296)) (.cse87 (* v_z_28 4294967295))) (let ((.cse85 (+ .cse86 .cse87))) (let ((.cse80 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse90 (+ (* 17179869180 v_z_28) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_28)))) (store .cse20 .cse90 (+ (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse85) (select .cse20 .cse90))))))) (let ((.cse81 (select .cse80 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse75 (select .cse81 .cse4)) (.cse77 (select .cse81 .cse5)) (.cse78 (select .cse81 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse79 (select .cse81 .cse6)) (.cse83 (* |c_ULTIMATE.start_main_~num~0#1| .cse85)) (.cse84 (* v_z_28 4))) (or (= (let ((.cse76 (select (store .cse80 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse82 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14 .cse84 (- 34359738368)))) (store .cse81 .cse82 (+ .cse83 (select .cse81 .cse82))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse75 (select .cse76 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse76 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse76 .cse2) .cse77 .cse78 (select .cse76 .cse7) .cse79)) 0) (< .cse85 0) (< c_~ARR_SIZE~0 (+ .cse86 .cse87 1)) (= (let ((.cse88 (select (store .cse80 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse89 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14 .cse84))) (store .cse81 .cse89 (+ .cse83 (select .cse81 .cse89))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ .cse75 |c_ULTIMATE.start_main_~sum~0#1| (select .cse88 |c_ULTIMATE.start_main_~#array1~0#1.offset|) .cse77 .cse78 (select .cse88 .cse2) (select .cse88 .cse7) .cse79 (select .cse88 .cse8))) 0)))))))) (< 4294967295 v_z_28))) (forall ((v_z_29 Int)) (let ((.cse91 (+ .cse0 v_z_29))) (or (< .cse91 4294967296) (forall ((v_y_29 Int)) (let ((.cse99 (* v_z_29 4294967295)) (.cse100 (* v_y_29 4294967296))) (let ((.cse101 (+ .cse99 .cse100))) (let ((.cse94 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse104 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_29) (* 17179869180 v_z_29)))) (store .cse20 .cse104 (+ (select .cse20 .cse104) (* .cse101 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse97 (* .cse101 |c_ULTIMATE.start_main_~num~0#1|)) (.cse95 (select .cse94 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse98 (* v_z_29 4))) (or (= (let ((.cse92 (let ((.cse96 (+ .cse98 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14))) (store .cse95 .cse96 (+ .cse97 (select .cse95 .cse96)))))) (let ((.cse93 (select (store .cse94 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse92) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse92 .cse5) (select .cse93 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse92 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse93 .cse7) (select .cse93 .cse8) (select .cse92 .cse4) (select .cse92 .cse6) (select .cse93 .cse2)))) 0) (< c_~ARR_SIZE~0 (+ .cse99 1 .cse100)) (< .cse101 0) (= (let ((.cse102 (select (store .cse94 |c_ULTIMATE.start_main_~#array2~0#1.base| (let ((.cse103 (+ .cse98 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse14))) (store .cse95 .cse103 (+ .cse97 (select .cse95 .cse103))))) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse102 .cse2) (select .cse95 .cse5) (select .cse102 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse95 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse102 .cse7) (select .cse95 .cse6) (select .cse102 .cse8) (select .cse95 .cse4))) 0))))))) (< 6442450943 .cse91) (< 4294967295 v_z_29))))))) is different from true [2024-11-14 03:05:59,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:05:59,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910988376] [2024-11-14 03:05:59,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:05:59,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685084544] [2024-11-14 03:05:59,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685084544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:05:59,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [579208972] [2024-11-14 03:05:59,603 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:05:59,604 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:05:59,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:05:59,605 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:05:59,606 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:06:00,140 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2024-11-14 03:06:00,146 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:06:08,458 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2869#(<= 1 ~ARR_SIZE~0)' at error location [2024-11-14 03:06:08,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:06:08,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:06:08,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-14 03:06:08,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614151768] [2024-11-14 03:06:08,459 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:06:08,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:06:08,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:06:08,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:06:08,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1373, Unknown=8, NotChecked=76, Total=1640 [2024-11-14 03:06:08,461 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 21 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:06:15,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:06:15,293 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2024-11-14 03:06:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 03:06:15,294 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-14 03:06:15,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:06:15,295 INFO L225 Difference]: With dead ends: 76 [2024-11-14 03:06:15,295 INFO L226 Difference]: Without dead ends: 73 [2024-11-14 03:06:15,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=267, Invalid=1985, Unknown=8, NotChecked=92, Total=2352 [2024-11-14 03:06:15,296 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 62 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:06:15,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 97 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 03:06:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-14 03:06:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2024-11-14 03:06:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:06:15,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2024-11-14 03:06:15,343 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 24 [2024-11-14 03:06:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:06:15,343 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2024-11-14 03:06:15,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:06:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2024-11-14 03:06:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 03:06:15,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:06:15,344 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:06:15,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:06:15,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:06:15,545 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:06:15,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:06:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash -386137674, now seen corresponding path program 1 times [2024-11-14 03:06:15,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:06:15,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320658809] [2024-11-14 03:06:15,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:06:15,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:06:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:06:15,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126016253] [2024-11-14 03:06:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:06:15,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:06:15,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:06:15,632 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:06:15,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2631b142-3a9f-48f3-a040-81af4b17b3a9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:06:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:06:15,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-14 03:06:15,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:06:16,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-11-14 03:06:16,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-14 03:06:16,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2024-11-14 03:06:18,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:06:19,548 INFO L349 Elim1Store]: treesize reduction 353, result has 14.1 percent of original size [2024-11-14 03:06:19,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 212 treesize of output 214 [2024-11-14 03:06:19,704 INFO L224 Elim1Store]: Index analysis took 110 ms [2024-11-14 03:06:20,272 INFO L349 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2024-11-14 03:06:20,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 179 treesize of output 184 [2024-11-14 03:06:20,515 INFO L349 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2024-11-14 03:06:20,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 157 [2024-11-14 03:06:20,975 INFO L349 Elim1Store]: treesize reduction 95, result has 22.8 percent of original size [2024-11-14 03:06:20,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 70 [2024-11-14 03:06:21,503 INFO L349 Elim1Store]: treesize reduction 83, result has 19.4 percent of original size [2024-11-14 03:06:21,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 43 [2024-11-14 03:06:24,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:06:27,380 INFO L349 Elim1Store]: treesize reduction 684, result has 16.9 percent of original size [2024-11-14 03:06:27,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 5 disjoint index pairs (out of 105 index pairs), introduced 16 new quantified variables, introduced 98 case distinctions, treesize of input 268 treesize of output 327 [2024-11-14 03:06:28,372 INFO L349 Elim1Store]: treesize reduction 128, result has 35.0 percent of original size [2024-11-14 03:06:28,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 281 treesize of output 308 [2024-11-14 03:06:40,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:06:40,413 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:06:40,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 157 [2024-11-14 03:06:40,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2024-11-14 03:06:40,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2024-11-14 03:06:40,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:06:40,994 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:06:40,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 235 [2024-11-14 03:06:41,117 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 03:06:41,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:06:41,405 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:06:41,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 159 [2024-11-14 03:06:41,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2024-11-14 03:06:41,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:06:41,819 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:06:41,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 179 [2024-11-14 03:06:41,842 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 03:06:52,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:06:52,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 54 case distinctions, treesize of input 555 treesize of output 887