./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/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_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/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_036923b5-4af8-4f3a-a8e8-27020b765d86/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 d2226df89556021067dd01a2668200dd1f99aac7ec2d26741f3688f0af887e5c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:48:12,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:48:12,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:48:12,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:48:12,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:48:12,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:48:12,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:48:12,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:48:12,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:48:12,191 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:48:12,191 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:48:12,192 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:48:12,192 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:48:12,192 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:48:12,192 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:48:12,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:48:12,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:48:12,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:48:12,194 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:48:12,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:48:12,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:48:12,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:48:12,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:48:12,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:48:12,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:48:12,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:48:12,197 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:48:12,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:48:12,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:48:12,198 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:48:12,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:48:12,198 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_036923b5-4af8-4f3a-a8e8-27020b765d86/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 -> d2226df89556021067dd01a2668200dd1f99aac7ec2d26741f3688f0af887e5c [2024-11-14 05:48:12,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:48:12,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:48:12,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:48:12,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:48:12,599 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:48:12,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c Unable to find full path for "g++" [2024-11-14 05:48:14,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:48:15,046 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:48:15,047 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c [2024-11-14 05:48:15,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/data/7ba61bbb7/ad4747c99a7443549d52534d8889fe86/FLAG1e423c5c1 [2024-11-14 05:48:15,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/data/7ba61bbb7/ad4747c99a7443549d52534d8889fe86 [2024-11-14 05:48:15,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:48:15,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:48:15,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:48:15,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:48:15,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:48:15,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f795c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15, skipping insertion in model container [2024-11-14 05:48:15,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:48:15,565 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_036923b5-4af8-4f3a-a8e8-27020b765d86/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c[1083,1096] [2024-11-14 05:48:15,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:48:15,598 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:48:15,607 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_036923b5-4af8-4f3a-a8e8-27020b765d86/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c[1083,1096] [2024-11-14 05:48:15,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:48:15,628 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:48:15,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15 WrapperNode [2024-11-14 05:48:15,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:48:15,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:48:15,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:48:15,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:48:15,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,665 INFO L138 Inliner]: procedures = 16, calls = 51, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-11-14 05:48:15,665 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:48:15,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:48:15,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:48:15,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:48:15,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:48:15,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:48:15,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:48:15,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:48:15,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (1/1) ... [2024-11-14 05:48:15,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:48:15,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:48:15,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:48:15,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:48:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2024-11-14 05:48:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2024-11-14 05:48:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:48:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:48:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:48:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:48:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:48:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:48:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:48:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:48:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:48:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:48:15,836 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:48:15,837 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:48:16,092 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-14 05:48:16,092 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:48:16,132 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:48:16,132 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:48:16,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:48:16 BoogieIcfgContainer [2024-11-14 05:48:16,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:48:16,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:48:16,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:48:16,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:48:16,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:48:15" (1/3) ... [2024-11-14 05:48:16,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751aecf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:48:16, skipping insertion in model container [2024-11-14 05:48:16,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:48:15" (2/3) ... [2024-11-14 05:48:16,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751aecf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:48:16, skipping insertion in model container [2024-11-14 05:48:16,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:48:16" (3/3) ... [2024-11-14 05:48:16,148 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1-u.c [2024-11-14 05:48:16,166 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:48:16,168 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_geo1-u.c that has 3 procedures, 20 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 05:48:16,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:48:16,247 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;@72ad1d6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:48:16,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:48:16,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:48:16,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:48:16,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:48:16,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:48:16,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:48:16,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:48:16,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1288934217, now seen corresponding path program 1 times [2024-11-14 05:48:16,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:48:16,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004285089] [2024-11-14 05:48:16,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:48:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:48:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866789708] [2024-11-14 05:48:16,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:16,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:48:16,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:48:16,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:48:16,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:48:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:48:16,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-14 05:48:16,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:48:16,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 88 [2024-11-14 05:48:16,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,926 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 71 treesize of output 55 [2024-11-14 05:48:16,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:16,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2024-11-14 05:48:17,056 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-11-14 05:48:17,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 53 [2024-11-14 05:48:17,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 42 [2024-11-14 05:48:17,169 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 7 [2024-11-14 05:48:17,503 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 35 treesize of output 15 [2024-11-14 05:48:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:48:17,612 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:48:17,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:48:17,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004285089] [2024-11-14 05:48:17,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:48:17,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866789708] [2024-11-14 05:48:17,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866789708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:48:17,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:48:17,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 05:48:17,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146268113] [2024-11-14 05:48:17,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:48:17,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:48:17,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:48:17,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:48:17,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:48:17,655 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:48:18,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:48:18,114 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2024-11-14 05:48:18,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:48:18,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 05:48:18,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:48:18,124 INFO L225 Difference]: With dead ends: 50 [2024-11-14 05:48:18,125 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 05:48:18,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:48:18,131 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:48:18,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 71 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:48:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 05:48:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-14 05:48:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 05:48:18,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2024-11-14 05:48:18,176 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2024-11-14 05:48:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:48:18,177 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-11-14 05:48:18,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:48:18,177 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2024-11-14 05:48:18,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 05:48:18,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:48:18,179 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:48:18,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:48:18,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:48:18,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:48:18,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:48:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1531368910, now seen corresponding path program 1 times [2024-11-14 05:48:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:48:18,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989490634] [2024-11-14 05:48:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:18,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:48:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:48:18,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889439603] [2024-11-14 05:48:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:18,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:48:18,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:48:18,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:48:18,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:48:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:48:19,272 WARN L253 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-11-14 05:48:19,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:48:19,368 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:19,492 INFO L349 Elim1Store]: treesize reduction 94, result has 29.3 percent of original size [2024-11-14 05:48:19,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 132 treesize of output 87 [2024-11-14 05:48:19,721 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:19,722 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:19,743 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-11-14 05:48:19,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 33 [2024-11-14 05:48:19,774 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 30 treesize of output 22 [2024-11-14 05:48:19,893 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:19,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:19,948 INFO L349 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2024-11-14 05:48:19,948 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 2 case distinctions, treesize of input 59 treesize of output 22 [2024-11-14 05:48:19,979 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:19,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:20,097 INFO L349 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2024-11-14 05:48:20,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 44 [2024-11-14 05:48:20,171 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:20,334 INFO L349 Elim1Store]: treesize reduction 118, result has 28.5 percent of original size [2024-11-14 05:48:20,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 132 treesize of output 95 [2024-11-14 05:48:20,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:20,415 INFO L349 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2024-11-14 05:48:20,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 32 [2024-11-14 05:48:20,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:48:20,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 28 [2024-11-14 05:48:20,632 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:20,691 INFO L349 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2024-11-14 05:48:20,692 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 2 case distinctions, treesize of input 59 treesize of output 22 [2024-11-14 05:48:20,726 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:20,824 INFO L349 Elim1Store]: treesize reduction 135, result has 10.0 percent of original size [2024-11-14 05:48:20,824 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 3 case distinctions, treesize of input 155 treesize of output 22 [2024-11-14 05:48:20,868 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:20,909 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2024-11-14 05:48:20,909 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 2 case distinctions, treesize of input 59 treesize of output 1 [2024-11-14 05:48:20,918 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:20,919 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:20,953 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2024-11-14 05:48:20,954 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 2 case distinctions, treesize of input 59 treesize of output 1 [2024-11-14 05:48:21,169 INFO L349 Elim1Store]: treesize reduction 146, result has 27.4 percent of original size [2024-11-14 05:48:21,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 274 treesize of output 172 [2024-11-14 05:48:21,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:21,555 INFO L349 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2024-11-14 05:48:21,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 38 [2024-11-14 05:48:21,613 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 26 treesize of output 20 [2024-11-14 05:48:21,691 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:21,792 INFO L349 Elim1Store]: treesize reduction 102, result has 23.3 percent of original size [2024-11-14 05:48:21,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 132 treesize of output 79 [2024-11-14 05:48:22,352 INFO L349 Elim1Store]: treesize reduction 442, result has 15.5 percent of original size [2024-11-14 05:48:22,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 1374 treesize of output 297 [2024-11-14 05:48:22,629 INFO L349 Elim1Store]: treesize reduction 138, result has 22.9 percent of original size [2024-11-14 05:48:22,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 17 case distinctions, treesize of input 79 treesize of output 88 [2024-11-14 05:48:22,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:48:22,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 33 [2024-11-14 05:48:24,176 INFO L349 Elim1Store]: treesize reduction 154, result has 23.4 percent of original size [2024-11-14 05:48:24,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 274 treesize of output 164 [2024-11-14 05:48:24,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:24,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:24,357 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-11-14 05:48:24,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 66 [2024-11-14 05:48:24,385 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 20 treesize of output 16 [2024-11-14 05:48:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:24,866 INFO L349 Elim1Store]: treesize reduction 456, result has 17.2 percent of original size [2024-11-14 05:48:24,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 736 treesize of output 161 [2024-11-14 05:48:29,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:29,296 INFO L349 Elim1Store]: treesize reduction 175, result has 31.4 percent of original size [2024-11-14 05:48:29,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 344 treesize of output 141 [2024-11-14 05:48:29,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:29,481 INFO L349 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2024-11-14 05:48:29,481 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 7 case distinctions, treesize of input 74 treesize of output 67 [2024-11-14 05:48:29,491 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 7 [2024-11-14 05:48:29,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:48:29,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 39 treesize of output 41 [2024-11-14 05:48:29,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:29,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:29,739 INFO L349 Elim1Store]: treesize reduction 86, result has 25.2 percent of original size [2024-11-14 05:48:29,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 36 [2024-11-14 05:48:29,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:29,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:29,846 INFO L349 Elim1Store]: treesize reduction 86, result has 25.2 percent of original size [2024-11-14 05:48:29,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 36 [2024-11-14 05:48:30,107 INFO L349 Elim1Store]: treesize reduction 186, result has 25.3 percent of original size [2024-11-14 05:48:30,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 282 treesize of output 188 [2024-11-14 05:48:30,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:30,232 INFO L349 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2024-11-14 05:48:30,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 42 [2024-11-14 05:48:30,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:48:30,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 20 [2024-11-14 05:48:30,329 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:48:30,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:30,385 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-11-14 05:48:30,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 37 [2024-11-14 05:48:30,414 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 11 treesize of output 7 [2024-11-14 05:48:30,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:48:30,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 30 treesize of output 32 [2024-11-14 05:48:30,958 INFO L349 Elim1Store]: treesize reduction 466, result has 18.4 percent of original size [2024-11-14 05:48:30,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 1374 treesize of output 321 [2024-11-14 05:48:35,885 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:48:35,928 INFO L349 Elim1Store]: treesize reduction 164, result has 0.6 percent of original size [2024-11-14 05:48:35,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 132 treesize of output 1 [2024-11-14 05:48:36,123 INFO L349 Elim1Store]: treesize reduction 186, result has 25.3 percent of original size [2024-11-14 05:48:36,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 274 treesize of output 180 [2024-11-14 05:48:36,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:36,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:36,207 INFO L349 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2024-11-14 05:48:36,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 42 [2024-11-14 05:48:36,249 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 5 treesize of output 3 [2024-11-14 05:48:36,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:48:36,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 20 [2024-11-14 05:48:36,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:36,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:36,364 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-11-14 05:48:36,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 34 [2024-11-14 05:48:36,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:48:36,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 30 treesize of output 32 [2024-11-14 05:48:36,617 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-11-14 05:48:36,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 53 [2024-11-14 05:48:50,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:50,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:50,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:50,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:50,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:50,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:48:51,770 INFO L349 Elim1Store]: treesize reduction 436, result has 37.4 percent of original size [2024-11-14 05:48:51,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 2800 treesize of output 2423 [2024-11-14 05:48:51,895 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 209 treesize of output 207 [2024-11-14 05:48:51,923 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 207 treesize of output 205 [2024-11-14 05:48:51,946 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 205 treesize of output 203 [2024-11-14 05:48:51,974 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 203 treesize of output 201 [2024-11-14 05:48:52,002 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 201 treesize of output 199 [2024-11-14 05:48:52,030 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 199 treesize of output 197 [2024-11-14 05:48:52,058 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 197 treesize of output 195 [2024-11-14 05:48:52,084 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 195 treesize of output 193 [2024-11-14 05:48:52,111 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 193 treesize of output 191 [2024-11-14 05:48:52,139 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 191 treesize of output 189 [2024-11-14 05:48:52,165 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 189 treesize of output 187 [2024-11-14 05:48:52,202 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 187 treesize of output 185 [2024-11-14 05:48:52,230 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 185 treesize of output 183 [2024-11-14 05:48:52,258 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 183 treesize of output 181 [2024-11-14 05:48:52,285 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 181 treesize of output 179 [2024-11-14 05:48:52,312 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 179 treesize of output 177 [2024-11-14 05:48:52,338 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 177 treesize of output 175 [2024-11-14 05:48:52,370 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 175 treesize of output 173 [2024-11-14 05:48:52,400 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 173 treesize of output 171 [2024-11-14 05:48:52,427 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 171 treesize of output 169 [2024-11-14 05:48:53,653 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-14 05:48:53,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 36 [2024-11-14 05:48:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:48:53,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:49:20,730 WARN L851 $PredicateComparison]: unable to prove that (= (mod (let ((.cse4 (let ((.cse6 (store |c_#memory_int| |c_func_to_recursive_line_28_to_36_0_#in~c.base| (let ((.cse8 (select |c_#memory_int| |c_func_to_recursive_line_28_to_36_0_#in~c.base|))) (store .cse8 |c_func_to_recursive_line_28_to_36_0_#in~c.offset| (+ (select .cse8 |c_func_to_recursive_line_28_to_36_0_#in~c.offset|) 1)))))) (store .cse6 |c_func_to_recursive_line_28_to_36_0_#in~x.base| (let ((.cse7 (select .cse6 |c_func_to_recursive_line_28_to_36_0_#in~x.base|))) (store .cse7 |c_func_to_recursive_line_28_to_36_0_#in~x.offset| (+ (* (mod (select (select .cse6 |c_func_to_recursive_line_28_to_36_0_#in~z.base|) |c_func_to_recursive_line_28_to_36_0_#in~z.offset|) 4294967296) (select .cse7 |c_func_to_recursive_line_28_to_36_0_#in~x.offset|)) 1))))))) (let ((.cse5 (select .cse4 |c_func_to_recursive_line_28_to_36_0_#in~y.base|))) (let ((.cse2 (select .cse5 |c_func_to_recursive_line_28_to_36_0_#in~y.offset|)) (.cse3 (mod (select (select .cse4 |c_func_to_recursive_line_28_to_36_0_#in~z.base|) |c_func_to_recursive_line_28_to_36_0_#in~z.offset|) 4294967296))) (let ((.cse1 (store .cse4 |c_func_to_recursive_line_28_to_36_0_#in~y.base| (store .cse5 |c_func_to_recursive_line_28_to_36_0_#in~y.offset| (* .cse2 .cse3))))) (let ((.cse0 (select (select .cse1 |c_func_to_recursive_line_28_to_36_0_#in~x.base|) |c_func_to_recursive_line_28_to_36_0_#in~x.offset|))) (+ (* 18446744073709551615 .cse0) (* (mod (select (select .cse1 |c_func_to_recursive_line_28_to_36_0_#in~z.base|) |c_func_to_recursive_line_28_to_36_0_#in~z.offset|) 4294967296) .cse0) (* 18446744073709551615 .cse2 .cse3) 1)))))) 18446744073709551616) 0) is different from false [2024-11-14 05:49:22,732 WARN L873 $PredicateComparison]: unable to prove that (= (mod (let ((.cse4 (let ((.cse6 (store |c_#memory_int| |c_func_to_recursive_line_28_to_36_0_#in~c.base| (let ((.cse8 (select |c_#memory_int| |c_func_to_recursive_line_28_to_36_0_#in~c.base|))) (store .cse8 |c_func_to_recursive_line_28_to_36_0_#in~c.offset| (+ (select .cse8 |c_func_to_recursive_line_28_to_36_0_#in~c.offset|) 1)))))) (store .cse6 |c_func_to_recursive_line_28_to_36_0_#in~x.base| (let ((.cse7 (select .cse6 |c_func_to_recursive_line_28_to_36_0_#in~x.base|))) (store .cse7 |c_func_to_recursive_line_28_to_36_0_#in~x.offset| (+ (* (mod (select (select .cse6 |c_func_to_recursive_line_28_to_36_0_#in~z.base|) |c_func_to_recursive_line_28_to_36_0_#in~z.offset|) 4294967296) (select .cse7 |c_func_to_recursive_line_28_to_36_0_#in~x.offset|)) 1))))))) (let ((.cse5 (select .cse4 |c_func_to_recursive_line_28_to_36_0_#in~y.base|))) (let ((.cse2 (select .cse5 |c_func_to_recursive_line_28_to_36_0_#in~y.offset|)) (.cse3 (mod (select (select .cse4 |c_func_to_recursive_line_28_to_36_0_#in~z.base|) |c_func_to_recursive_line_28_to_36_0_#in~z.offset|) 4294967296))) (let ((.cse1 (store .cse4 |c_func_to_recursive_line_28_to_36_0_#in~y.base| (store .cse5 |c_func_to_recursive_line_28_to_36_0_#in~y.offset| (* .cse2 .cse3))))) (let ((.cse0 (select (select .cse1 |c_func_to_recursive_line_28_to_36_0_#in~x.base|) |c_func_to_recursive_line_28_to_36_0_#in~x.offset|))) (+ (* 18446744073709551615 .cse0) (* (mod (select (select .cse1 |c_func_to_recursive_line_28_to_36_0_#in~z.base|) |c_func_to_recursive_line_28_to_36_0_#in~z.offset|) 4294967296) .cse0) (* 18446744073709551615 .cse2 .cse3) 1)))))) 18446744073709551616) 0) is different from true [2024-11-14 05:49:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-14 05:49:33,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:49:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989490634] [2024-11-14 05:49:33,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:49:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889439603] [2024-11-14 05:49:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889439603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:49:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1389710655] [2024-11-14 05:49:33,683 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-14 05:49:33,684 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:49:33,688 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) 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) [2024-11-14 05:49:33,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:49:33,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2024-11-14 05:49:33,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445296472] [2024-11-14 05:49:33,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:49:33,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 05:49:33,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:49:33,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 05:49:33,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=325, Unknown=5, NotChecked=36, Total=420 [2024-11-14 05:49:33,695 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 21 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 14 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:49:41,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:49:47,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:49:54,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:49:57,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:50:09,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:50:10,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:50:12,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:50:13,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:50:14,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:50:16,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:50:23,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:50:24,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:50:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:25,486 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2024-11-14 05:50:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 05:50:25,488 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 14 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-14 05:50:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:25,491 INFO L225 Difference]: With dead ends: 46 [2024-11-14 05:50:25,491 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 05:50:25,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 59.9s TimeCoverageRelationStatistics Valid=115, Invalid=638, Unknown=7, NotChecked=52, Total=812 [2024-11-14 05:50:25,494 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 34 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:25,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 123 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 212 Invalid, 5 Unknown, 48 Unchecked, 31.1s Time] [2024-11-14 05:50:25,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 05:50:25,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2024-11-14 05:50:25,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-14 05:50:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2024-11-14 05:50:25,519 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 18 [2024-11-14 05:50:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:25,520 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2024-11-14 05:50:25,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 14 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:50:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2024-11-14 05:50:25,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 05:50:25,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:25,521 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:50:25,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:50:25,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:50:25,722 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:50:25,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:25,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1152056984, now seen corresponding path program 1 times [2024-11-14 05:50:25,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:25,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484463768] [2024-11-14 05:50:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:25,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:50:25,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825208314] [2024-11-14 05:50:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:25,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:50:25,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:50:25,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:50:25,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:50:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:50:26,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:50:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:50:26,312 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:50:26,312 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:50:26,314 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:50:26,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:50:26,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:50:26,519 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 05:50:26,553 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:50:26,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:50:26 BoogieIcfgContainer [2024-11-14 05:50:26,556 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:50:26,557 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:50:26,557 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:50:26,557 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:50:26,558 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:48:16" (3/4) ... [2024-11-14 05:50:26,559 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 05:50:26,603 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:50:26,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:50:26,604 INFO L158 Benchmark]: Toolchain (without parser) took 131227.75ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 117.3MB in the beginning and 265.0MB in the end (delta: -147.7MB). Peak memory consumption was 124.5MB. Max. memory is 16.1GB. [2024-11-14 05:50:26,604 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:50:26,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.47ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 105.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:50:26,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.90ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:50:26,605 INFO L158 Benchmark]: Boogie Preprocessor took 21.80ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.8MB in the end (delta: 771.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:50:26,606 INFO L158 Benchmark]: RCFGBuilder took 443.79ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 89.5MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:50:26,606 INFO L158 Benchmark]: TraceAbstraction took 130419.39ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 88.8MB in the beginning and 268.5MB in the end (delta: -179.7MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. [2024-11-14 05:50:26,606 INFO L158 Benchmark]: Witness Printer took 46.32ms. Allocated memory is still 419.4MB. Free memory was 268.5MB in the beginning and 265.0MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:50:26,608 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.47ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 105.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.90ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.80ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.8MB in the end (delta: 771.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 443.79ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 89.5MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 130419.39ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 88.8MB in the beginning and 268.5MB in the end (delta: -179.7MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. * Witness Printer took 46.32ms. Allocated memory is still 419.4MB. Free memory was 268.5MB in the beginning and 265.0MB in the end (delta: 3.5MB). 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 - CounterExampleResult [Line: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L78] unsigned int z; [L79] unsigned int k; [L80] unsigned long long x; [L81] unsigned long long y; [L82] unsigned long long c; [L83] z = __VERIFIER_nondet_uint() [L84] k = __VERIFIER_nondet_uint() [L85] x = 1 [L86] EXPR \read(z) [L86] y = z [L87] c = 1 VAL [c={5:0}, k={8:0}, x={4:0}, y={6:0}, z={7:0}] [L88] CALL func_to_recursive_line_28_to_36_0(&c, &y, &z, &x, &k) VAL [\old(c)={5:0}, \old(k)={8:0}, \old(x)={4:0}, \old(y)={6:0}, \old(z)={7:0}] [L57] EXPR \read(*x) [L57] EXPR \read(*z) [L57] EXPR \read(*x) [L57] EXPR \read(*y) VAL [\old(c)={5:0}, \old(k)={8:0}, \old(x)={4:0}, \old(y)={6:0}, \old(z)={7:0}, c={5:0}, k={8:0}, x={4:0}, y={6:0}, z={7:0}] [L57] CALL __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [\old(cond)=1] [L38] COND FALSE !(!cond) VAL [\old(cond)=1] [L57] RET __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [\old(c)={5:0}, \old(k)={8:0}, \old(x)={4:0}, \old(y)={6:0}, \old(z)={7:0}, c={5:0}, k={8:0}, x={4:0}, y={6:0}, z={7:0}] [L58] EXPR \read(*c) [L58] EXPR \read(*k) VAL [\old(c)={5:0}, \old(k)={8:0}, \old(x)={4:0}, \old(y)={6:0}, \old(z)={7:0}, c={5:0}, k={8:0}, x={4:0}, y={6:0}, z={7:0}] [L58] COND TRUE !((*c) < (*k)) [L88] RET func_to_recursive_line_28_to_36_0(&c, &y, &z, &x, &k) VAL [c={5:0}, k={8:0}, x={4:0}, y={6:0}, z={7:0}] [L89] EXPR \read(x) [L89] EXPR \read(z) [L89] x = x * (z - 1) [L90] EXPR \read(x) [L90] EXPR \read(y) VAL [c={5:0}, k={8:0}] [L90] CALL __VERIFIER_assert(((1 + x) - y) == 0) VAL [\old(cond)=0] [L38] COND TRUE !cond VAL [\old(cond)=0] [L42] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 130.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 52.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 31.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 31.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 48 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 293 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 24 mSDtfsCounter, 293 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 60.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 75.2s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 13 QuantifiedInterpolants, 14280 SizeOfPredicates, 55 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/10 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 proved your program to be incorrect! [2024-11-14 05:50:26,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_036923b5-4af8-4f3a-a8e8-27020b765d86/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE