./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:38:09,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:38:09,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 19:38:09,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:38:09,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:38:09,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:38:09,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:38:09,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:38:09,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:38:09,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:38:09,512 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:38:09,513 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:38:09,513 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:38:09,514 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:38:09,514 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:38:09,515 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:38:09,515 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:38:09,516 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:38:09,516 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:38:09,516 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:38:09,517 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:38:09,517 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:38:09,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:38:09,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:38:09,519 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:38:09,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:38:09,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:38:09,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:38:09,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:38:09,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:38:09,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:38:09,521 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 19:38:09,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 19:38:09,521 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:38:09,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:38:09,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:38:09,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:38:09,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:38:09,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:38:09,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:38:09,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:38:09,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:38:09,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:38:09,523 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:38:09,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:38:09,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:38:09,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:38:09,524 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:38:09,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:38:09,524 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a [2023-12-02 19:38:09,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:38:09,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:38:09,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:38:09,776 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:38:09,776 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:38:09,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-12-02 19:38:12,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:38:12,629 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:38:12,630 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-12-02 19:38:12,636 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/data/f417acc79/81d633b9727e42deb7656b1788b67dbf/FLAG609d8f2b1 [2023-12-02 19:38:12,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/data/f417acc79/81d633b9727e42deb7656b1788b67dbf [2023-12-02 19:38:12,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:38:12,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:38:12,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:38:12,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:38:12,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:38:12,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617b5f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12, skipping insertion in model container [2023-12-02 19:38:12,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,678 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:38:12,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:38:12,827 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:38:12,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:38:12,863 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:38:12,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12 WrapperNode [2023-12-02 19:38:12,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:38:12,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:38:12,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:38:12,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:38:12,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,901 INFO L138 Inliner]: procedures = 16, calls = 67, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-12-02 19:38:12,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:38:12,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:38:12,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:38:12,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:38:12,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:38:12,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:38:12,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:38:12,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:38:12,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (1/1) ... [2023-12-02 19:38:12,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:38:12,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:12,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:38:12,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:38:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:38:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:38:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:38:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:38:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-12-02 19:38:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-12-02 19:38:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:38:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:38:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:38:12,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 19:38:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 19:38:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:38:13,062 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:38:13,064 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:38:13,367 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:38:13,406 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:38:13,406 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:38:13,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:13 BoogieIcfgContainer [2023-12-02 19:38:13,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:38:13,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:38:13,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:38:13,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:38:13,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:38:12" (1/3) ... [2023-12-02 19:38:13,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1809917d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:38:13, skipping insertion in model container [2023-12-02 19:38:13,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:38:12" (2/3) ... [2023-12-02 19:38:13,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1809917d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:38:13, skipping insertion in model container [2023-12-02 19:38:13,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:38:13" (3/3) ... [2023-12-02 19:38:13,417 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo3-ll.c [2023-12-02 19:38:13,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:38:13,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-12-02 19:38:13,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:38:13,482 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15cb9f8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:38:13,482 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-12-02 19:38:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 70 states have internal predecessors, (71), 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) [2023-12-02 19:38:13,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 19:38:13,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:13,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 19:38:13,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:38:13,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:13,496 INFO L85 PathProgramCache]: Analyzing trace with hash 4301, now seen corresponding path program 1 times [2023-12-02 19:38:13,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:13,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060403099] [2023-12-02 19:38:13,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:13,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:13,626 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:38:13,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938768951] [2023-12-02 19:38:13,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:13,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:13,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:13,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:38:13,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:38:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:13,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 19:38:13,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:13,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:13,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 111 [2023-12-02 19:38:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:13,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:13,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:13,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 23 [2023-12-02 19:38:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:38:14,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:38:14,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:14,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060403099] [2023-12-02 19:38:14,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:38:14,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938768951] [2023-12-02 19:38:14,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938768951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:14,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:14,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 19:38:14,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047093467] [2023-12-02 19:38:14,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:14,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:38:14,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:14,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:38:14,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:38:14,076 INFO L87 Difference]: Start difference. First operand has 76 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 70 states have internal predecessors, (71), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:14,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:14,127 INFO L93 Difference]: Finished difference Result 104 states and 107 transitions. [2023-12-02 19:38:14,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:38:14,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-12-02 19:38:14,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:14,137 INFO L225 Difference]: With dead ends: 104 [2023-12-02 19:38:14,137 INFO L226 Difference]: Without dead ends: 71 [2023-12-02 19:38:14,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:38:14,143 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:14,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 142 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 19:38:14,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-12-02 19:38:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-12-02 19:38:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 38 states have (on average 1.736842105263158) internal successors, (66), 66 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 19:38:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2023-12-02 19:38:14,177 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 2 [2023-12-02 19:38:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:14,178 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2023-12-02 19:38:14,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2023-12-02 19:38:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 19:38:14,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:14,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:14,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:38:14,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 19:38:14,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:38:14,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1335794297, now seen corresponding path program 1 times [2023-12-02 19:38:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:14,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546126167] [2023-12-02 19:38:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:14,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:14,423 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:38:14,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977498893] [2023-12-02 19:38:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:14,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:14,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:14,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:38:14,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:38:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:14,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-02 19:38:14,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:14,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:14,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 44 [2023-12-02 19:38:14,704 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2023-12-02 19:38:14,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 103 [2023-12-02 19:38:14,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 14 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2023-12-02 19:38:15,072 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 42 treesize of output 44 [2023-12-02 19:38:15,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 20 [2023-12-02 19:38:15,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:38:15,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:38:15,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:15,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546126167] [2023-12-02 19:38:15,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:38:15,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977498893] [2023-12-02 19:38:15,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977498893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:15,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:15,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:38:15,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267655727] [2023-12-02 19:38:15,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:15,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:38:15,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:15,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:38:15,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:38:15,459 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:16,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:16,370 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-12-02 19:38:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 19:38:16,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 19:38:16,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:16,372 INFO L225 Difference]: With dead ends: 123 [2023-12-02 19:38:16,372 INFO L226 Difference]: Without dead ends: 122 [2023-12-02 19:38:16,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-02 19:38:16,374 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 113 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:16,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 268 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 19:38:16,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-12-02 19:38:16,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 88. [2023-12-02 19:38:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.7169811320754718) internal successors, (91), 81 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-02 19:38:16,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2023-12-02 19:38:16,391 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 7 [2023-12-02 19:38:16,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:16,391 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2023-12-02 19:38:16,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2023-12-02 19:38:16,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 19:38:16,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:16,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:16,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 19:38:16,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:16,598 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:38:16,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:16,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1540049790, now seen corresponding path program 1 times [2023-12-02 19:38:16,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:16,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133582904] [2023-12-02 19:38:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:16,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:16,634 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:38:16,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11681786] [2023-12-02 19:38:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:16,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:16,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:16,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:38:16,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:38:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:16,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-02 19:38:16,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:16,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 42 [2023-12-02 19:38:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:16,875 INFO L349 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-12-02 19:38:16,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 111 treesize of output 99 [2023-12-02 19:38:16,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-02 19:38:17,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2023-12-02 19:38:17,181 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 39 treesize of output 15 [2023-12-02 19:38:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:38:17,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:38:17,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:17,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133582904] [2023-12-02 19:38:17,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:38:17,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11681786] [2023-12-02 19:38:17,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11681786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:17,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:17,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:38:17,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758861729] [2023-12-02 19:38:17,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:17,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 19:38:17,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:17,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 19:38:17,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:38:17,202 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:17,769 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2023-12-02 19:38:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:38:17,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 19:38:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:17,771 INFO L225 Difference]: With dead ends: 122 [2023-12-02 19:38:17,772 INFO L226 Difference]: Without dead ends: 121 [2023-12-02 19:38:17,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-02 19:38:17,773 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 107 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:17,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 236 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 19:38:17,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-02 19:38:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 88. [2023-12-02 19:38:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6981132075471699) internal successors, (90), 81 states have internal predecessors, (90), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-02 19:38:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2023-12-02 19:38:17,786 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 8 [2023-12-02 19:38:17,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:17,787 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2023-12-02 19:38:17,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2023-12-02 19:38:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 19:38:17,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:17,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:17,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 19:38:17,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-02 19:38:17,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_30_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:38:17,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:17,991 INFO L85 PathProgramCache]: Analyzing trace with hash 496903273, now seen corresponding path program 1 times [2023-12-02 19:38:17,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:17,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234168764] [2023-12-02 19:38:17,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:17,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:18,021 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:38:18,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807508615] [2023-12-02 19:38:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:18,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:18,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:18,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:38:18,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:38:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:18,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 70 conjunts are in the unsatisfiable core [2023-12-02 19:38:18,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:18,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 42 [2023-12-02 19:38:18,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:18,258 INFO L349 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-12-02 19:38:18,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 111 treesize of output 99 [2023-12-02 19:38:18,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-02 19:38:18,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 47 [2023-12-02 19:38:18,737 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 65 treesize of output 29 [2023-12-02 19:38:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:38:18,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:38:18,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:18,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234168764] [2023-12-02 19:38:18,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:38:18,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807508615] [2023-12-02 19:38:18,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807508615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:18,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:18,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:38:18,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648637013] [2023-12-02 19:38:18,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:18,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:38:18,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:18,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:38:18,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:38:18,770 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:19,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:19,438 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2023-12-02 19:38:19,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:38:19,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 19:38:19,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:19,439 INFO L225 Difference]: With dead ends: 121 [2023-12-02 19:38:19,439 INFO L226 Difference]: Without dead ends: 119 [2023-12-02 19:38:19,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-02 19:38:19,441 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 98 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:19,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 309 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:38:19,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-02 19:38:19,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 88. [2023-12-02 19:38:19,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6603773584905661) internal successors, (88), 81 states have internal predecessors, (88), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-02 19:38:19,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2023-12-02 19:38:19,452 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 9 [2023-12-02 19:38:19,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:19,452 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2023-12-02 19:38:19,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:19,452 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2023-12-02 19:38:19,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 19:38:19,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:19,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:19,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:38:19,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:19,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_30_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:38:19,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:19,654 INFO L85 PathProgramCache]: Analyzing trace with hash 782676811, now seen corresponding path program 1 times [2023-12-02 19:38:19,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:19,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899223769] [2023-12-02 19:38:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:19,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:19,683 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:38:19,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232309967] [2023-12-02 19:38:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:19,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:19,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:19,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:38:19,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 19:38:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:19,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 19:38:19,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:19,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,912 INFO L349 Elim1Store]: treesize reduction 70, result has 29.3 percent of original size [2023-12-02 19:38:19,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 64 [2023-12-02 19:38:19,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,953 INFO L349 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2023-12-02 19:38:19,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 295 treesize of output 277 [2023-12-02 19:38:19,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:19,999 INFO L349 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2023-12-02 19:38:19,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 57 [2023-12-02 19:38:20,349 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 20 treesize of output 18 [2023-12-02 19:38:20,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2023-12-02 19:38:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:38:20,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:38:20,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:20,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899223769] [2023-12-02 19:38:20,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:38:20,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232309967] [2023-12-02 19:38:20,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232309967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:20,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:20,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 19:38:20,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111399566] [2023-12-02 19:38:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:20,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 19:38:20,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 19:38:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:38:20,529 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:20,863 INFO L93 Difference]: Finished difference Result 119 states and 121 transitions. [2023-12-02 19:38:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:38:20,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 19:38:20,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:20,866 INFO L225 Difference]: With dead ends: 119 [2023-12-02 19:38:20,866 INFO L226 Difference]: Without dead ends: 118 [2023-12-02 19:38:20,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-12-02 19:38:20,867 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 108 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:20,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 311 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:38:20,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-02 19:38:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 88. [2023-12-02 19:38:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6415094339622642) internal successors, (87), 81 states have internal predecessors, (87), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-02 19:38:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-12-02 19:38:20,877 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 11 [2023-12-02 19:38:20,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:20,877 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-12-02 19:38:20,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-12-02 19:38:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 19:38:20,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:20,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:20,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 19:38:21,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:21,079 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_30_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:38:21,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1506822590, now seen corresponding path program 1 times [2023-12-02 19:38:21,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:21,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155702903] [2023-12-02 19:38:21,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:21,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:21,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:38:21,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584161508] [2023-12-02 19:38:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:21,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:21,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:21,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:38:21,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 19:38:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:21,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 54 conjunts are in the unsatisfiable core [2023-12-02 19:38:21,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:21,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,352 INFO L349 Elim1Store]: treesize reduction 138, result has 29.9 percent of original size [2023-12-02 19:38:21,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 256 treesize of output 81 [2023-12-02 19:38:21,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:21,408 INFO L349 Elim1Store]: treesize reduction 61, result has 12.9 percent of original size [2023-12-02 19:38:21,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 78 treesize of output 89 [2023-12-02 19:38:21,449 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-12-02 19:38:21,450 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 310 treesize of output 296 [2023-12-02 19:38:21,782 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:38:21,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2023-12-02 19:38:22,036 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:38:22,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2023-12-02 19:38:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:38:22,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:38:22,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:22,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155702903] [2023-12-02 19:38:22,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:38:22,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584161508] [2023-12-02 19:38:22,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584161508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:22,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:22,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:38:22,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474076720] [2023-12-02 19:38:22,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:22,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:38:22,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:22,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:38:22,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:38:22,073 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:22,493 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2023-12-02 19:38:22,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:38:22,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-02 19:38:22,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:22,495 INFO L225 Difference]: With dead ends: 118 [2023-12-02 19:38:22,495 INFO L226 Difference]: Without dead ends: 117 [2023-12-02 19:38:22,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-02 19:38:22,496 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 83 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:22,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 318 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 19:38:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-02 19:38:22,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 88. [2023-12-02 19:38:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6226415094339623) internal successors, (86), 81 states have internal predecessors, (86), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-02 19:38:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2023-12-02 19:38:22,509 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 12 [2023-12-02 19:38:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:22,509 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2023-12-02 19:38:22,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:38:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2023-12-02 19:38:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 19:38:22,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:22,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:22,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 19:38:22,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:22,711 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_30_to_38_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:38:22,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash 533140013, now seen corresponding path program 1 times [2023-12-02 19:38:22,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:22,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075114769] [2023-12-02 19:38:22,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:22,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:22,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:38:22,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254732462] [2023-12-02 19:38:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:22,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:22,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:38:22,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:38:22,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d7b685-0cc1-429d-9b33-ec65e5e91461/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 19:38:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:22,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 19:38:22,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:22,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:25,579 INFO L349 Elim1Store]: treesize reduction 1100, result has 23.1 percent of original size [2023-12-02 19:38:25,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 9238 treesize of output 4054 [2023-12-02 19:38:25,803 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:38:25,806 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 538421 treesize of output 535077 [2023-12-02 19:38:26,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:33,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:33,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:33,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:34,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:34,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:35,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:35,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:38:35,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:38:35,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:35,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:35,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:36,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:36,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:36,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:38:36,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:45:06,628 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:45:06,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:45:06,629 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:45:06,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:27,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:27,580 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:46:27,581 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:46:27,586 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:46:27,596 INFO L224 Elim1Store]: Index analysis took 118 ms