./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i --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_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/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_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/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_8064ca06-0352-4e64-9760-b26fc0673fb9/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 9f2585eba40b5252f785f265b9872263af0c48c9373a5d882dd5881c41fcdf34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:22:34,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:22:34,134 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:22:34,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:22:34,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:22:34,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:22:34,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:22:34,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:22:34,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:22:34,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:22:34,171 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:22:34,171 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:22:34,171 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:22:34,171 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:22:34,171 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:22:34,171 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:22:34,172 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:22:34,172 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:22:34,172 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:22:34,172 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:22:34,172 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:22:34,172 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:22:34,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:22:34,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:22:34,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:22:34,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:22:34,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:22:34,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:22:34,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:22:34,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:22:34,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:22:34,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:22:34,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:22:34,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:22:34,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:22:34,176 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:22:34,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:22:34,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:22:34,176 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:22:34,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:22:34,176 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_8064ca06-0352-4e64-9760-b26fc0673fb9/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 -> 9f2585eba40b5252f785f265b9872263af0c48c9373a5d882dd5881c41fcdf34 [2024-11-14 05:22:34,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:22:34,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:22:34,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:22:34,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:22:34,493 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:22:34,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i Unable to find full path for "g++" [2024-11-14 05:22:36,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:22:36,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:22:36,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i [2024-11-14 05:22:36,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data/76a11406e/dfeee3f771264b01a0ab427ba756e5f2/FLAG98c5e0ef8 [2024-11-14 05:22:36,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data/76a11406e/dfeee3f771264b01a0ab427ba756e5f2 [2024-11-14 05:22:36,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:22:36,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:22:36,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:22:36,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:22:36,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:22:36,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:22:36" (1/1) ... [2024-11-14 05:22:36,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405cec77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:36, skipping insertion in model container [2024-11-14 05:22:36,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:22:36" (1/1) ... [2024-11-14 05:22:36,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:22:36,908 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_8064ca06-0352-4e64-9760-b26fc0673fb9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i[916,929] [2024-11-14 05:22:37,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:22:37,018 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:22:37,032 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_8064ca06-0352-4e64-9760-b26fc0673fb9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i[916,929] [2024-11-14 05:22:37,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:22:37,131 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:22:37,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37 WrapperNode [2024-11-14 05:22:37,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:22:37,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:22:37,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:22:37,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:22:37,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,191 INFO L138 Inliner]: procedures = 26, calls = 129, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 349 [2024-11-14 05:22:37,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:22:37,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:22:37,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:22:37,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:22:37,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:22:37,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:22:37,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:22:37,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:22:37,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (1/1) ... [2024-11-14 05:22:37,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:22:37,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:37,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:22:37,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:22:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:22:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:22:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:22:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:22:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:22:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:22:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:22:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:22:37,384 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:22:37,386 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:22:37,895 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-14 05:22:37,896 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:22:38,416 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:22:38,417 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:22:38,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:22:38 BoogieIcfgContainer [2024-11-14 05:22:38,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:22:38,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:22:38,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:22:38,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:22:38,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:22:36" (1/3) ... [2024-11-14 05:22:38,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a70eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:22:38, skipping insertion in model container [2024-11-14 05:22:38,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:37" (2/3) ... [2024-11-14 05:22:38,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a70eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:22:38, skipping insertion in model container [2024-11-14 05:22:38,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:22:38" (3/3) ... [2024-11-14 05:22:38,431 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-59.i [2024-11-14 05:22:38,448 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:22:38,450 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-59.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:22:38,513 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:22:38,527 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;@2fb9fd7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:22:38,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:22:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 05:22:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:22:38,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:38,541 INFO L215 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:38,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:22:38,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:38,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1517887897, now seen corresponding path program 1 times [2024-11-14 05:22:38,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:38,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085532888] [2024-11-14 05:22:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:38,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:22:39,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326447806] [2024-11-14 05:22:39,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:39,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:39,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:39,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:39,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:22:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:40,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-14 05:22:40,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:40,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:40,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:40,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:40,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:40,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:40,703 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-14 05:22:40,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 43 [2024-11-14 05:22:41,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:41,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:41,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:41,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:41,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:41,658 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-14 05:22:41,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 47 [2024-11-14 05:22:42,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:42,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:42,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:42,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2024-11-14 05:22:43,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:43,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:43,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:43,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-11-14 05:22:44,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:44,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:44,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 57 [2024-11-14 05:22:45,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:45,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 63 [2024-11-14 05:22:45,650 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 9 treesize of output 5 [2024-11-14 05:22:46,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:46,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:46,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 84 treesize of output 68 [2024-11-14 05:22:47,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:47,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:47,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:47,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 84 treesize of output 68 [2024-11-14 05:22:47,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:47,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:47,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:22:47,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 84 treesize of output 68 [2024-11-14 05:22:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 33 proven. 221 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 05:22:50,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:34:28,761 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-14 05:34:28,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:28,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-14 05:34:28,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085532888] [2024-11-14 05:34:28,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:34:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326447806] [2024-11-14 05:34:28,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2024-11-14 05:34:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920034671] [2024-11-14 05:34:28,784 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-14 05:34:28,784 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:34:28,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:34:28,794 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:34:28,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:34:28,876 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:326) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:220) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 44 more [2024-11-14 05:34:28,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:28,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2024-11-14 05:34:28,884 ERROR L171 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2024-11-14 05:34:28,887 INFO L325 BasicCegarLoop]: Counterexample might be feasible [2024-11-14 05:34:28,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:34:28,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 05:34:29,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:34:29,101 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:34:29,126 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:34:29,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:34:29 BoogieIcfgContainer [2024-11-14 05:34:29,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:34:29,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:34:29,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:34:29,131 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:34:29,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:22:38" (3/4) ... [2024-11-14 05:34:29,134 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:34:29,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:34:29,136 INFO L158 Benchmark]: Toolchain (without parser) took 712446.50ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 118.2MB in the beginning and 380.6MB in the end (delta: -262.4MB). Peak memory consumption was 219.0MB. Max. memory is 16.1GB. [2024-11-14 05:34:29,136 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:34:29,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.94ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 104.2MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:34:29,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.04ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 101.4MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:34:29,137 INFO L158 Benchmark]: Boogie Preprocessor took 33.28ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:34:29,137 INFO L158 Benchmark]: RCFGBuilder took 1191.95ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 83.1MB in the end (delta: 16.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-14 05:34:29,137 INFO L158 Benchmark]: TraceAbstraction took 710707.87ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 82.5MB in the beginning and 380.6MB in the end (delta: -298.1MB). Peak memory consumption was 188.3MB. Max. memory is 16.1GB. [2024-11-14 05:34:29,137 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 629.1MB. Free memory is still 380.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:34:29,139 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.94ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 104.2MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.04ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 101.4MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.28ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1191.95ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 83.1MB in the end (delta: 16.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * TraceAbstraction took 710707.87ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 82.5MB in the beginning and 380.6MB in the end (delta: -298.1MB). Peak memory consumption was 188.3MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 629.1MB. Free memory is still 380.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] signed char signed_char_Array_0[2][2] = { {32, -1}, {-4, -4} }; [L28-L30] signed long int signed_long_int_Array_0[3] = { 32, 0, -128 }; [L31-L33] signed short int signed_short_int_Array_0[3] = { -32, 128, 1000 }; [L34] signed char last_1_signed_char_Array_0_0__1_ = -1; [L35] signed long int last_1_signed_long_int_Array_0_2_ = -128; [L36] signed short int last_1_signed_short_int_Array_0_0_ = -32; [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L94] EXPR signed_char_Array_0[0][1] [L94] last_1_signed_char_Array_0_0__1_ = signed_char_Array_0[0][1] [L95] EXPR signed_long_int_Array_0[2] [L95] last_1_signed_long_int_Array_0_2_ = signed_long_int_Array_0[2] [L96] EXPR signed_short_int_Array_0[0] [L96] last_1_signed_short_int_Array_0_0_ = signed_short_int_Array_0[0] [L106] RET updateLastVariables() [L107] CALL updateVariables() [L65] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L66] EXPR BOOL_unsigned_char_Array_0[0] [L66] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) [L67] EXPR BOOL_unsigned_char_Array_0[0] [L67] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) [L68] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L69] EXPR BOOL_unsigned_char_Array_0[1] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) [L70] EXPR BOOL_unsigned_char_Array_0[1] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) [L71] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L72] EXPR signed_char_Array_0[0][0] [L72] CALL assume_abort_if_not(signed_char_Array_0[0][0] >= -31) [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(signed_char_Array_0[0][0] >= -31) [L73] EXPR signed_char_Array_0[0][0] [L73] CALL assume_abort_if_not(signed_char_Array_0[0][0] <= 32) [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 32) [L74] signed_char_Array_0[1][0] = __VERIFIER_nondet_char() [L75] EXPR signed_char_Array_0[1][0] [L75] CALL assume_abort_if_not(signed_char_Array_0[1][0] >= -31) [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(signed_char_Array_0[1][0] >= -31) [L76] EXPR signed_char_Array_0[1][0] [L76] CALL assume_abort_if_not(signed_char_Array_0[1][0] <= 31) [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(signed_char_Array_0[1][0] <= 31) [L77] signed_char_Array_0[1][1] = __VERIFIER_nondet_char() [L78] EXPR signed_char_Array_0[1][1] [L78] CALL assume_abort_if_not(signed_char_Array_0[1][1] >= -63) [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(signed_char_Array_0[1][1] >= -63) [L79] EXPR signed_char_Array_0[1][1] [L79] CALL assume_abort_if_not(signed_char_Array_0[1][1] <= 63) [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(signed_char_Array_0[1][1] <= 63) [L80] signed_long_int_Array_0[0] = __VERIFIER_nondet_long() [L81] EXPR signed_long_int_Array_0[0] [L81] CALL assume_abort_if_not(signed_long_int_Array_0[0] >= 0) [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(signed_long_int_Array_0[0] >= 0) [L82] EXPR signed_long_int_Array_0[0] [L82] CALL assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) [L83] signed_long_int_Array_0[1] = __VERIFIER_nondet_long() [L84] EXPR signed_long_int_Array_0[1] [L84] CALL assume_abort_if_not(signed_long_int_Array_0[1] >= 0) [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(signed_long_int_Array_0[1] >= 0) [L85] EXPR signed_long_int_Array_0[1] [L85] CALL assume_abort_if_not(signed_long_int_Array_0[1] <= 536870912) [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(signed_long_int_Array_0[1] <= 536870912) [L86] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L87] EXPR signed_short_int_Array_0[1] [L87] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= -1) [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(signed_short_int_Array_0[1] >= -1) [L88] EXPR signed_short_int_Array_0[1] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32766) [L89] signed_short_int_Array_0[2] = __VERIFIER_nondet_short() [L90] EXPR signed_short_int_Array_0[2] [L90] CALL assume_abort_if_not(signed_short_int_Array_0[2] >= 0) [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(signed_short_int_Array_0[2] >= 0) [L91] EXPR signed_short_int_Array_0[2] [L91] CALL assume_abort_if_not(signed_short_int_Array_0[2] <= 32766) [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(signed_short_int_Array_0[2] <= 32766) [L107] RET updateVariables() [L108] CALL step() [L40] COND TRUE last_1_signed_long_int_Array_0_2_ > ((((last_1_signed_char_Array_0_0__1_) < 0 ) ? -(last_1_signed_char_Array_0_0__1_) : (last_1_signed_char_Array_0_0__1_))) [L41] EXPR signed_short_int_Array_0[1] [L41] EXPR signed_short_int_Array_0[2] [L41] signed_short_int_Array_0[0] = (signed_short_int_Array_0[1] - signed_short_int_Array_0[2]) [L49] EXPR signed_long_int_Array_0[1] [L49] EXPR signed_long_int_Array_0[0] [L49] COND TRUE last_1_signed_short_int_Array_0_0_ > (last_1_signed_char_Array_0_0__1_ * (signed_long_int_Array_0[1] - signed_long_int_Array_0[0])) [L50] EXPR signed_long_int_Array_0[0] [L50] COND FALSE !(signed_long_int_Array_0[0] > last_1_signed_char_Array_0_0__1_) [L53] EXPR signed_char_Array_0[1][0] [L53] signed_char_Array_0[0][1] = signed_char_Array_0[1][0] [L58] EXPR signed_short_int_Array_0[0] [L58] EXPR ((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1) [L58] COND TRUE ((((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1))) <= (256 + last_1_signed_long_int_Array_0_2_) [L59] EXPR signed_long_int_Array_0[1] [L59] EXPR signed_short_int_Array_0[0] [L59] EXPR signed_char_Array_0[0][1] [L59] signed_long_int_Array_0[2] = (((signed_long_int_Array_0[1] - 128) + signed_short_int_Array_0[0]) + signed_char_Array_0[0][1]) [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR signed_short_int_Array_0[0] [L99] EXPR ((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1) [L99] EXPR signed_short_int_Array_0[0] [L99] EXPR ((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1) [L99] EXPR (((((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1))) <= (256 + last_1_signed_long_int_Array_0_2_)) ? (signed_long_int_Array_0[2] == ((signed long int) (((signed_long_int_Array_0[1] - 128) + signed_short_int_Array_0[0]) + signed_char_Array_0[0][1]))) : (signed_long_int_Array_0[2] == ((signed long int) (signed_long_int_Array_0[1] + signed_short_int_Array_0[0]))) [L99] EXPR signed_long_int_Array_0[2] [L99] EXPR signed_long_int_Array_0[1] [L99] EXPR signed_short_int_Array_0[0] [L99] EXPR (((((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1))) <= (256 + last_1_signed_long_int_Array_0_2_)) ? (signed_long_int_Array_0[2] == ((signed long int) (((signed_long_int_Array_0[1] - 128) + signed_short_int_Array_0[0]) + signed_char_Array_0[0][1]))) : (signed_long_int_Array_0[2] == ((signed long int) (signed_long_int_Array_0[1] + signed_short_int_Array_0[0]))) [L99] EXPR ((((((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1))) <= (256 + last_1_signed_long_int_Array_0_2_)) ? (signed_long_int_Array_0[2] == ((signed long int) (((signed_long_int_Array_0[1] - 128) + signed_short_int_Array_0[0]) + signed_char_Array_0[0][1]))) : (signed_long_int_Array_0[2] == ((signed long int) (signed_long_int_Array_0[1] + signed_short_int_Array_0[0])))) && ((last_1_signed_short_int_Array_0_0_ > (last_1_signed_char_Array_0_0__1_ * (signed_long_int_Array_0[1] - signed_long_int_Array_0[0]))) ? ((signed_long_int_Array_0[0] > last_1_signed_char_Array_0_0__1_) ? (signed_char_Array_0[0][1] == ((signed char) ((signed_char_Array_0[0][0] + signed_char_Array_0[1][0]) + signed_char_Array_0[1][1]))) : (signed_char_Array_0[0][1] == ((signed char) signed_char_Array_0[1][0]))) : (signed_char_Array_0[0][1] == ((signed char) signed_char_Array_0[1][1]))) [L99] EXPR (((((((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1))) <= (256 + last_1_signed_long_int_Array_0_2_)) ? (signed_long_int_Array_0[2] == ((signed long int) (((signed_long_int_Array_0[1] - 128) + signed_short_int_Array_0[0]) + signed_char_Array_0[0][1]))) : (signed_long_int_Array_0[2] == ((signed long int) (signed_long_int_Array_0[1] + signed_short_int_Array_0[0])))) && ((last_1_signed_short_int_Array_0_0_ > (last_1_signed_char_Array_0_0__1_ * (signed_long_int_Array_0[1] - signed_long_int_Array_0[0]))) ? ((signed_long_int_Array_0[0] > last_1_signed_char_Array_0_0__1_) ? (signed_char_Array_0[0][1] == ((signed char) ((signed_char_Array_0[0][0] + signed_char_Array_0[1][0]) + signed_char_Array_0[1][1]))) : (signed_char_Array_0[0][1] == ((signed char) signed_char_Array_0[1][0]))) : (signed_char_Array_0[0][1] == ((signed char) signed_char_Array_0[1][1])))) && ((last_1_signed_long_int_Array_0_2_ > ((((last_1_signed_char_Array_0_0__1_) < 0 ) ? -(last_1_signed_char_Array_0_0__1_) : (last_1_signed_char_Array_0_0__1_)))) ? (signed_short_int_Array_0[0] == ((signed short int) (signed_short_int_Array_0[1] - signed_short_int_Array_0[2]))) : ((BOOL_unsigned_char_Array_0[1] || BOOL_unsigned_char_Array_0[0]) ? ((2 < last_1_signed_char_Array_0_0__1_) ? (signed_short_int_Array_0[0] == ((signed short int) last_1_signed_char_Array_0_0__1_)) : 1) : 1)) [L99-L100] return (((((((signed_short_int_Array_0[0]) > (1)) ? (signed_short_int_Array_0[0]) : (1))) <= (256 + last_1_signed_long_int_Array_0_2_)) ? (signed_long_int_Array_0[2] == ((signed long int) (((signed_long_int_Array_0[1] - 128) + signed_short_int_Array_0[0]) + signed_char_Array_0[0][1]))) : (signed_long_int_Array_0[2] == ((signed long int) (signed_long_int_Array_0[1] + signed_short_int_Array_0[0])))) && ((last_1_signed_short_int_Array_0_0_ > (last_1_signed_char_Array_0_0__1_ * (signed_long_int_Array_0[1] - signed_long_int_Array_0[0]))) ? ((signed_long_int_Array_0[0] > last_1_signed_char_Array_0_0__1_) ? (signed_char_Array_0[0][1] == ((signed char) ((signed_char_Array_0[0][0] + signed_char_Array_0[1][0]) + signed_char_Array_0[1][1]))) : (signed_char_Array_0[0][1] == ((signed char) signed_char_Array_0[1][0]))) : (signed_char_Array_0[0][1] == ((signed char) signed_char_Array_0[1][1])))) && ((last_1_signed_long_int_Array_0_2_ > ((((last_1_signed_char_Array_0_0__1_) < 0 ) ? -(last_1_signed_char_Array_0_0__1_) : (last_1_signed_char_Array_0_0__1_)))) ? (signed_short_int_Array_0[0] == ((signed short int) (signed_short_int_Array_0[1] - signed_short_int_Array_0[2]))) : ((BOOL_unsigned_char_Array_0[1] || BOOL_unsigned_char_Array_0[0]) ? ((2 < last_1_signed_char_Array_0_0__1_) ? (signed_short_int_Array_0[0] == ((signed short int) last_1_signed_char_Array_0_0__1_)) : 1) : 1)) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 710.6s, OverallIterations: 1, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 708.4s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 6194 SizeOfPredicates, 18 NumberOfNonLiveVariables, 323 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 85/306 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/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_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/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 9f2585eba40b5252f785f265b9872263af0c48c9373a5d882dd5881c41fcdf34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:34:32,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:34:32,313 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:34:32,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:34:32,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:34:32,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:34:32,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:34:32,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:34:32,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:34:32,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:34:32,373 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:34:32,374 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:34:32,374 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:34:32,375 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:34:32,375 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:34:32,375 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:34:32,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:34:32,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:34:32,375 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:34:32,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:34:32,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:34:32,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:34:32,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:34:32,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:34:32,377 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:34:32,377 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:34:32,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:34:32,378 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:34:32,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:34:32,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:34:32,378 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:34:32,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:34:32,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:34:32,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:34:32,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:34:32,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:34:32,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:34:32,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:34:32,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:34:32,381 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:34:32,381 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:34:32,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:34:32,381 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:34:32,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8064ca06-0352-4e64-9760-b26fc0673fb9/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 -> 9f2585eba40b5252f785f265b9872263af0c48c9373a5d882dd5881c41fcdf34 [2024-11-14 05:34:32,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:34:32,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:34:32,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:34:32,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:34:32,861 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:34:32,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i Unable to find full path for "g++" [2024-11-14 05:34:35,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:34:35,372 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:34:35,373 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i [2024-11-14 05:34:35,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data/e55c86aa4/63f89cc721ff4d149c1b38b33baabd79/FLAGacb0cd3f5 [2024-11-14 05:34:35,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/data/e55c86aa4/63f89cc721ff4d149c1b38b33baabd79 [2024-11-14 05:34:35,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:34:35,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:34:35,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:34:35,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:34:35,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:34:35,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a66272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35, skipping insertion in model container [2024-11-14 05:34:35,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:34:35,619 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_8064ca06-0352-4e64-9760-b26fc0673fb9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i[916,929] [2024-11-14 05:34:35,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:34:35,723 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:34:35,739 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_8064ca06-0352-4e64-9760-b26fc0673fb9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-59.i[916,929] [2024-11-14 05:34:35,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:34:35,854 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:34:35,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35 WrapperNode [2024-11-14 05:34:35,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:34:35,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:34:35,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:34:35,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:34:35,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,931 INFO L138 Inliner]: procedures = 33, calls = 129, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 342 [2024-11-14 05:34:35,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:34:35,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:34:35,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:34:35,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:34:35,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:35,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:34:35,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:34:35,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:34:36,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:34:36,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (1/1) ... [2024-11-14 05:34:36,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:34:36,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:36,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:34:36,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:34:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:34:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 05:34:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-14 05:34:36,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:34:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 05:34:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:34:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-14 05:34:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:34:36,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:34:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:34:36,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:34:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 05:34:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-14 05:34:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:34:36,287 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:34:36,290 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:34:37,118 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-14 05:34:37,119 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:34:37,133 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:34:37,134 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:34:37,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:34:37 BoogieIcfgContainer [2024-11-14 05:34:37,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:34:37,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:34:37,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:34:37,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:34:37,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:34:35" (1/3) ... [2024-11-14 05:34:37,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9b2f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:34:37, skipping insertion in model container [2024-11-14 05:34:37,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:34:35" (2/3) ... [2024-11-14 05:34:37,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9b2f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:34:37, skipping insertion in model container [2024-11-14 05:34:37,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:34:37" (3/3) ... [2024-11-14 05:34:37,149 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-59.i [2024-11-14 05:34:37,172 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:34:37,176 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-59.i that has 2 procedures, 84 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:34:37,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:34:37,254 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;@6f58e89a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:34:37,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:34:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 64 states have internal predecessors, (86), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 05:34:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 05:34:37,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:37,279 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:37,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:37,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:37,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1353182387, now seen corresponding path program 1 times [2024-11-14 05:34:37,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:37,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267243042] [2024-11-14 05:34:37,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:37,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:37,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:37,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:37,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:34:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:37,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:34:37,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-14 05:34:37,800 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:37,801 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:37,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267243042] [2024-11-14 05:34:37,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267243042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:37,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:37,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:34:37,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201557492] [2024-11-14 05:34:37,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:37,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:34:37,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:37,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:34:37,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:34:37,849 INFO L87 Difference]: Start difference. First operand has 84 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 64 states have internal predecessors, (86), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 05:34:37,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:37,884 INFO L93 Difference]: Finished difference Result 161 states and 256 transitions. [2024-11-14 05:34:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:34:37,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2024-11-14 05:34:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:37,896 INFO L225 Difference]: With dead ends: 161 [2024-11-14 05:34:37,897 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 05:34:37,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 05:34:37,905 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:37,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:34:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 05:34:37,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-14 05:34:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 60 states have internal predecessors, (79), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 05:34:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2024-11-14 05:34:37,961 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 131 [2024-11-14 05:34:37,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:37,962 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2024-11-14 05:34:37,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 05:34:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2024-11-14 05:34:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 05:34:37,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:37,967 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:37,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:34:38,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:38,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:38,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1779298519, now seen corresponding path program 1 times [2024-11-14 05:34:38,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:38,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240578479] [2024-11-14 05:34:38,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:38,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:38,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:38,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:38,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:34:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:38,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:34:38,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:38,836 INFO L349 Elim1Store]: treesize reduction 3, result has 78.6 percent of original size [2024-11-14 05:34:38,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 25 [2024-11-14 05:34:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 05:34:40,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:40,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:40,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240578479] [2024-11-14 05:34:40,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240578479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:40,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:40,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:34:40,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440117796] [2024-11-14 05:34:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:40,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:34:40,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:40,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:34:40,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:34:40,242 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:34:41,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:41,067 INFO L93 Difference]: Finished difference Result 235 states and 340 transitions. [2024-11-14 05:34:41,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:34:41,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2024-11-14 05:34:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:41,071 INFO L225 Difference]: With dead ends: 235 [2024-11-14 05:34:41,071 INFO L226 Difference]: Without dead ends: 158 [2024-11-14 05:34:41,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:34:41,073 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 51 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:41,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 253 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:34:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-14 05:34:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 148. [2024-11-14 05:34:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 109 states have internal predecessors, (142), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:34:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 214 transitions. [2024-11-14 05:34:41,110 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 214 transitions. Word has length 131 [2024-11-14 05:34:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:41,111 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 214 transitions. [2024-11-14 05:34:41,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:34:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 214 transitions. [2024-11-14 05:34:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 05:34:41,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:41,114 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:41,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 05:34:41,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:41,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:41,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:41,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1926305735, now seen corresponding path program 1 times [2024-11-14 05:34:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:41,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073876810] [2024-11-14 05:34:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:41,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:41,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:41,321 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:41,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:34:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:41,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:34:41,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 05:34:41,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:41,613 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:41,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073876810] [2024-11-14 05:34:41,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073876810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:41,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:41,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:34:41,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453857171] [2024-11-14 05:34:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:41,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:34:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:34:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:34:41,616 INFO L87 Difference]: Start difference. First operand 148 states and 214 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:34:41,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:41,672 INFO L93 Difference]: Finished difference Result 248 states and 363 transitions. [2024-11-14 05:34:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:34:41,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-14 05:34:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:41,677 INFO L225 Difference]: With dead ends: 248 [2024-11-14 05:34:41,680 INFO L226 Difference]: Without dead ends: 150 [2024-11-14 05:34:41,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:34:41,682 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:41,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:34:41,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-14 05:34:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-14 05:34:41,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 111 states have internal predecessors, (144), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:34:41,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2024-11-14 05:34:41,758 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 216 transitions. Word has length 133 [2024-11-14 05:34:41,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:41,758 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 216 transitions. [2024-11-14 05:34:41,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:34:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 216 transitions. [2024-11-14 05:34:41,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 05:34:41,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:41,765 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:41,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:34:41,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:41,967 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:41,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash 374516855, now seen corresponding path program 1 times [2024-11-14 05:34:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:41,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297441255] [2024-11-14 05:34:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:41,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:41,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:41,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:41,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 05:34:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:42,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:34:42,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:44,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:34:44,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-14 05:34:44,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2024-11-14 05:34:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 05:34:44,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:44,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:44,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297441255] [2024-11-14 05:34:44,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297441255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:44,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:44,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 05:34:44,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745712825] [2024-11-14 05:34:44,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:44,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:34:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:44,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:34:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:34:44,572 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:34:46,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:46,383 INFO L93 Difference]: Finished difference Result 277 states and 394 transitions. [2024-11-14 05:34:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:34:46,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-14 05:34:46,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:46,387 INFO L225 Difference]: With dead ends: 277 [2024-11-14 05:34:46,387 INFO L226 Difference]: Without dead ends: 187 [2024-11-14 05:34:46,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:34:46,389 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 111 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:46,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 339 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:34:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-14 05:34:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 154. [2024-11-14 05:34:46,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 115 states have (on average 1.3043478260869565) internal successors, (150), 115 states have internal predecessors, (150), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:34:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 222 transitions. [2024-11-14 05:34:46,419 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 222 transitions. Word has length 133 [2024-11-14 05:34:46,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:46,422 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 222 transitions. [2024-11-14 05:34:46,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:34:46,422 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 222 transitions. [2024-11-14 05:34:46,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 05:34:46,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:46,425 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:46,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 05:34:46,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:46,629 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:46,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:46,630 INFO L85 PathProgramCache]: Analyzing trace with hash -305541515, now seen corresponding path program 1 times [2024-11-14 05:34:46,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:46,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949958793] [2024-11-14 05:34:46,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:46,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:46,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:46,633 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:46,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 05:34:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:47,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-14 05:34:47,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:47,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-14 05:34:48,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:34:49,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-14 05:34:49,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-14 05:34:50,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2024-11-14 05:34:51,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2024-11-14 05:34:52,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 62 treesize of output 46 [2024-11-14 05:34:52,945 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:34:52,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 113 treesize of output 84 [2024-11-14 05:34:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 402 proven. 60 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 05:34:54,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:35:05,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:35:05,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949958793] [2024-11-14 05:35:05,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949958793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:35:05,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [313646674] [2024-11-14 05:35:05,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:05,278 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:35:05,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:35:05,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:35:05,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 05:35:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:05,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 05:35:05,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:35:06,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 05:35:06,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 05:35:07,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 05:35:07,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 05:35:08,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 05:35:08,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 05:35:09,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 05:35:09,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-14 05:35:10,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2024-11-14 05:35:11,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2024-11-14 05:35:11,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2024-11-14 05:35:12,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-14 05:35:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 208 proven. 128 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-14 05:35:12,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:35:13,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [313646674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:35:13,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516342604] [2024-11-14 05:35:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:13,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:13,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:13,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:35:13,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:35:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:14,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-14 05:35:14,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:35:14,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-14 05:35:15,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-14 05:35:19,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-11-14 05:35:20,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2024-11-14 05:35:25,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 59 [2024-11-14 05:35:26,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 59 [2024-11-14 05:35:27,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 82 treesize of output 54 [2024-11-14 05:35:29,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:35:29,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 96 treesize of output 79 [2024-11-14 05:35:38,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:35:38,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 206 treesize of output 106 [2024-11-14 05:35:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 404 proven. 66 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-14 05:35:38,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:36:13,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516342604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:36:13,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:36:13,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 8, 28] total 56 [2024-11-14 05:36:13,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425750013] [2024-11-14 05:36:13,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:36:13,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-14 05:36:13,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:36:13,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-14 05:36:13,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=894, Invalid=4481, Unknown=27, NotChecked=0, Total=5402 [2024-11-14 05:36:13,875 INFO L87 Difference]: Start difference. First operand 154 states and 222 transitions. Second operand has 57 states, 49 states have (on average 3.142857142857143) internal successors, (154), 51 states have internal predecessors, (154), 17 states have call successors, (46), 14 states have call predecessors, (46), 17 states have return successors, (46), 13 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-14 05:36:38,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:38,375 INFO L93 Difference]: Finished difference Result 386 states and 540 transitions. [2024-11-14 05:36:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-14 05:36:38,376 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 49 states have (on average 3.142857142857143) internal successors, (154), 51 states have internal predecessors, (154), 17 states have call successors, (46), 14 states have call predecessors, (46), 17 states have return successors, (46), 13 states have call predecessors, (46), 17 states have call successors, (46) Word has length 133 [2024-11-14 05:36:38,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:38,382 INFO L225 Difference]: With dead ends: 386 [2024-11-14 05:36:38,382 INFO L226 Difference]: Without dead ends: 289 [2024-11-14 05:36:38,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3698 ImplicationChecksByTransitivity, 73.2s TimeCoverageRelationStatistics Valid=2086, Invalid=9229, Unknown=27, NotChecked=0, Total=11342 [2024-11-14 05:36:38,389 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 768 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:36:38,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1246 Invalid, 3001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [414 Valid, 2587 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2024-11-14 05:36:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-14 05:36:38,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 244. [2024-11-14 05:36:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 182 states have (on average 1.2747252747252746) internal successors, (232), 182 states have internal predecessors, (232), 54 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 05:36:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 340 transitions. [2024-11-14 05:36:38,479 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 340 transitions. Word has length 133 [2024-11-14 05:36:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:38,480 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 340 transitions. [2024-11-14 05:36:38,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 49 states have (on average 3.142857142857143) internal successors, (154), 51 states have internal predecessors, (154), 17 states have call successors, (46), 14 states have call predecessors, (46), 17 states have return successors, (46), 13 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-14 05:36:38,480 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 340 transitions. [2024-11-14 05:36:38,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 05:36:38,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:38,482 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:38,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 05:36:38,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:36:38,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-14 05:36:39,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:36:39,084 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:39,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:39,084 INFO L85 PathProgramCache]: Analyzing trace with hash -605316169, now seen corresponding path program 1 times [2024-11-14 05:36:39,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:36:39,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064703794] [2024-11-14 05:36:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:39,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:36:39,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:36:39,087 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:36:39,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-14 05:36:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:39,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:36:39,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 05:36:40,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:36:40,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:36:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064703794] [2024-11-14 05:36:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064703794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:36:40,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:36:40,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:36:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376217112] [2024-11-14 05:36:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:36:40,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:36:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:36:40,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:36:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:36:40,195 INFO L87 Difference]: Start difference. First operand 244 states and 340 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:36:40,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:40,978 INFO L93 Difference]: Finished difference Result 420 states and 592 transitions. [2024-11-14 05:36:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:36:40,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-14 05:36:40,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:40,984 INFO L225 Difference]: With dead ends: 420 [2024-11-14 05:36:40,984 INFO L226 Difference]: Without dead ends: 254 [2024-11-14 05:36:40,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:36:40,986 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 39 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:36:40,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 341 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:36:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-14 05:36:41,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 244. [2024-11-14 05:36:41,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 182 states have (on average 1.2692307692307692) internal successors, (231), 182 states have internal predecessors, (231), 54 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 05:36:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 339 transitions. [2024-11-14 05:36:41,038 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 339 transitions. Word has length 133 [2024-11-14 05:36:41,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:41,039 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 339 transitions. [2024-11-14 05:36:41,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 05:36:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 339 transitions. [2024-11-14 05:36:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 05:36:41,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:41,041 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:41,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-14 05:36:41,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:36:41,245 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:41,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:41,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1285374539, now seen corresponding path program 1 times [2024-11-14 05:36:41,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:36:41,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052341180] [2024-11-14 05:36:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:41,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:36:41,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:36:41,249 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:36:41,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 05:36:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:41,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 05:36:41,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:43,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-14 05:36:44,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-14 05:36:46,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2024-11-14 05:36:47,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2024-11-14 05:36:48,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 62 treesize of output 46 [2024-11-14 05:36:49,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:36:49,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 105 treesize of output 80 [2024-11-14 05:36:53,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:36:53,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 104 [2024-11-14 05:36:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 402 proven. 60 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 05:36:54,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:37:15,640 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:37:15,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052341180] [2024-11-14 05:37:15,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052341180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:37:15,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [593127462] [2024-11-14 05:37:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:37:15,641 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:37:15,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:37:15,643 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:37:15,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8064ca06-0352-4e64-9760-b26fc0673fb9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 05:37:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:16,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-14 05:37:16,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:37:16,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-14 05:37:17,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-14 05:37:18,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-14 05:37:19,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-14 05:37:20,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2024-11-14 05:37:24,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2024-11-14 05:37:25,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29