./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje --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 6f3643eb7577eb0ba12bcd7a7f20ec9e29deb69664963fe3575fff225cd03ad0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:30:53,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:30:53,793 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:30:53,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:30:53,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:30:53,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:30:53,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:30:53,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:30:53,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:30:53,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:30:53,846 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:30:53,846 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:30:53,847 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:30:53,848 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:30:53,848 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:30:53,848 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:30:53,849 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:30:53,849 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:30:53,849 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:30:53,850 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:30:53,850 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:30:53,851 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:30:53,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:30:53,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:30:53,855 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:30:53,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:30:53,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:30:53,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:30:53,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:30:53,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:30:53,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:30:53,862 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:30:53,862 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:30:53,862 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:30:53,863 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:30:53,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:30:53,863 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:30:53,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:30:53,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:30:53,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:30:53,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:53,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:30:53,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:30:53,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:30:53,867 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:30:53,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:30:53,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:30:53,868 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:30:53,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:30:53,868 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_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f3643eb7577eb0ba12bcd7a7f20ec9e29deb69664963fe3575fff225cd03ad0 [2024-11-09 04:30:54,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:30:54,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:30:54,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:30:54,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:30:54,248 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:30:54,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps5.c Unable to find full path for "g++" [2024-11-09 04:30:56,250 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:30:56,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:30:56,485 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/sv-benchmarks/c/recursified_nla-digbench/recursified_ps5.c [2024-11-09 04:30:56,494 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/data/3b72d9896/b7accf157b3a433abb17aa56ed165dcc/FLAGa9e03eb25 [2024-11-09 04:30:56,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/data/3b72d9896/b7accf157b3a433abb17aa56ed165dcc [2024-11-09 04:30:56,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:30:56,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:30:56,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:56,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:30:56,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:30:56,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:56" (1/1) ... [2024-11-09 04:30:56,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34869d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:56, skipping insertion in model container [2024-11-09 04:30:56,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:56" (1/1) ... [2024-11-09 04:30:56,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:30:57,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:57,099 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:30:57,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:57,147 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:30:57,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57 WrapperNode [2024-11-09 04:30:57,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:57,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:57,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:30:57,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:30:57,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,196 INFO L138 Inliner]: procedures = 16, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2024-11-09 04:30:57,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:57,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:30:57,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:30:57,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:30:57,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,226 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:30:57,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:30:57,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:30:57,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:30:57,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (1/1) ... [2024-11-09 04:30:57,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:57,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:57,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:30:57,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:30:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:30:57,328 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_25_to_33_0 [2024-11-09 04:30:57,328 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_25_to_33_0 [2024-11-09 04:30:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:30:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:30:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:30:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:30:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:30:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:30:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:30:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:30:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:30:57,479 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:30:57,482 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:30:58,963 INFO L? ?]: Removed 367 outVars from TransFormulas that were not future-live. [2024-11-09 04:30:58,964 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:30:59,022 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:30:59,022 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:30:59,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:59 BoogieIcfgContainer [2024-11-09 04:30:59,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:30:59,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:30:59,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:30:59,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:30:59,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:30:56" (1/3) ... [2024-11-09 04:30:59,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2db537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:59, skipping insertion in model container [2024-11-09 04:30:59,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:57" (2/3) ... [2024-11-09 04:30:59,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2db537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:59, skipping insertion in model container [2024-11-09 04:30:59,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:59" (3/3) ... [2024-11-09 04:30:59,066 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps5.c [2024-11-09 04:30:59,093 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:30:59,128 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2024-11-09 04:30:59,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:30:59,214 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14580f5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:30:59,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2024-11-09 04:30:59,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 94 states have (on average 1.9148936170212767) internal successors, (180), 179 states have internal predecessors, (180), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:30:59,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 04:30:59,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:59,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 04:30:59,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:30:59,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:59,232 INFO L85 PathProgramCache]: Analyzing trace with hash 236242727, now seen corresponding path program 1 times [2024-11-09 04:30:59,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:59,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133399629] [2024-11-09 04:30:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:59,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:00,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:00,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133399629] [2024-11-09 04:31:00,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133399629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:00,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:00,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:31:00,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849423652] [2024-11-09 04:31:00,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:00,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:31:00,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:00,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:31:00,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:31:00,169 INFO L87 Difference]: Start difference. First operand has 186 states, 94 states have (on average 1.9148936170212767) internal successors, (180), 179 states have internal predecessors, (180), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-09 04:31:01,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:01,076 INFO L93 Difference]: Finished difference Result 426 states and 435 transitions. [2024-11-09 04:31:01,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:31:01,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 5 [2024-11-09 04:31:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:01,092 INFO L225 Difference]: With dead ends: 426 [2024-11-09 04:31:01,092 INFO L226 Difference]: Without dead ends: 327 [2024-11-09 04:31:01,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:31:01,108 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 256 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:01,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 668 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:31:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-09 04:31:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 224. [2024-11-09 04:31:01,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 132 states have (on average 1.8257575757575757) internal successors, (241), 216 states have internal predecessors, (241), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2024-11-09 04:31:01,191 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 5 [2024-11-09 04:31:01,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:01,192 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2024-11-09 04:31:01,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-09 04:31:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2024-11-09 04:31:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 04:31:01,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:01,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:01,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:31:01,195 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_25_to_33_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:01,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:01,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1256384111, now seen corresponding path program 1 times [2024-11-09 04:31:01,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:01,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190518062] [2024-11-09 04:31:01,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:01,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:01,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:01,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190518062] [2024-11-09 04:31:01,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190518062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:01,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:01,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:01,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697440986] [2024-11-09 04:31:01,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:01,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:31:01,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:01,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:31:01,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:01,801 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-09 04:31:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:02,678 INFO L93 Difference]: Finished difference Result 327 states and 332 transitions. [2024-11-09 04:31:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:31:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 15 [2024-11-09 04:31:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:02,681 INFO L225 Difference]: With dead ends: 327 [2024-11-09 04:31:02,681 INFO L226 Difference]: Without dead ends: 326 [2024-11-09 04:31:02,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:31:02,686 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 297 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:02,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 563 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:31:02,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-09 04:31:02,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 224. [2024-11-09 04:31:02,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 132 states have (on average 1.8181818181818181) internal successors, (240), 216 states have internal predecessors, (240), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:02,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 251 transitions. [2024-11-09 04:31:02,720 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 251 transitions. Word has length 15 [2024-11-09 04:31:02,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:02,720 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 251 transitions. [2024-11-09 04:31:02,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-09 04:31:02,720 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 251 transitions. [2024-11-09 04:31:02,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 04:31:02,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:02,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:02,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:31:02,721 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_25_to_33_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:02,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:02,722 INFO L85 PathProgramCache]: Analyzing trace with hash -293201720, now seen corresponding path program 1 times [2024-11-09 04:31:02,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:02,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718899642] [2024-11-09 04:31:02,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:03,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:03,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718899642] [2024-11-09 04:31:03,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718899642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:03,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:03,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517056654] [2024-11-09 04:31:03,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:03,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:31:03,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:03,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:31:03,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:03,150 INFO L87 Difference]: Start difference. First operand 224 states and 251 transitions. Second operand has 7 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-09 04:31:04,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:04,219 INFO L93 Difference]: Finished difference Result 326 states and 331 transitions. [2024-11-09 04:31:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:31:04,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 16 [2024-11-09 04:31:04,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:04,221 INFO L225 Difference]: With dead ends: 326 [2024-11-09 04:31:04,221 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 04:31:04,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:31:04,223 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 253 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:04,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 663 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 04:31:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 04:31:04,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 224. [2024-11-09 04:31:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 132 states have (on average 1.8106060606060606) internal successors, (239), 216 states have internal predecessors, (239), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 250 transitions. [2024-11-09 04:31:04,236 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 250 transitions. Word has length 16 [2024-11-09 04:31:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:04,237 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 250 transitions. [2024-11-09 04:31:04,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-09 04:31:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 250 transitions. [2024-11-09 04:31:04,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 04:31:04,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:04,238 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:04,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:31:04,238 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_25_to_33_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:04,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:04,239 INFO L85 PathProgramCache]: Analyzing trace with hash -499318669, now seen corresponding path program 1 times [2024-11-09 04:31:04,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:04,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756905967] [2024-11-09 04:31:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:04,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:04,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441138666] [2024-11-09 04:31:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:04,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:04,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:04,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:04,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:31:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:04,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 04:31:04,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:04,496 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2024-11-09 04:31:04,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-09 04:31:04,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:04,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 53 treesize of output 49 [2024-11-09 04:31:04,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:04,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:04,552 INFO L349 Elim1Store]: treesize reduction 36, result has 25.0 percent of original size [2024-11-09 04:31:04,552 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 2 case distinctions, treesize of input 36 treesize of output 36 [2024-11-09 04:31:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:04,731 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:04,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:04,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756905967] [2024-11-09 04:31:04,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:04,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441138666] [2024-11-09 04:31:04,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441138666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:04,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:04,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:04,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333862657] [2024-11-09 04:31:04,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:04,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:31:04,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:04,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:31:04,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:04,737 INFO L87 Difference]: Start difference. First operand 224 states and 250 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-09 04:31:05,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:05,460 INFO L93 Difference]: Finished difference Result 325 states and 330 transitions. [2024-11-09 04:31:05,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:31:05,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 17 [2024-11-09 04:31:05,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:05,461 INFO L225 Difference]: With dead ends: 325 [2024-11-09 04:31:05,462 INFO L226 Difference]: Without dead ends: 319 [2024-11-09 04:31:05,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:31:05,463 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 208 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:05,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 765 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:31:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-09 04:31:05,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 224. [2024-11-09 04:31:05,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 132 states have (on average 1.7651515151515151) internal successors, (233), 216 states have internal predecessors, (233), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:05,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 244 transitions. [2024-11-09 04:31:05,486 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 244 transitions. Word has length 17 [2024-11-09 04:31:05,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:05,487 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 244 transitions. [2024-11-09 04:31:05,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-09 04:31:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 244 transitions. [2024-11-09 04:31:05,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 04:31:05,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:05,488 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:05,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:31:05,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:05,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_25_to_33_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:05,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:05,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1349020391, now seen corresponding path program 1 times [2024-11-09 04:31:05,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:05,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15286127] [2024-11-09 04:31:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:05,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:05,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588019688] [2024-11-09 04:31:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:05,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:05,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:05,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:05,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:31:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:05,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:31:05,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:05,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:05,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:05,929 INFO L349 Elim1Store]: treesize reduction 92, result has 25.2 percent of original size [2024-11-09 04:31:05,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 114 [2024-11-09 04:31:05,944 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 [2024-11-09 04:31:05,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:05,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 83 treesize of output 75 [2024-11-09 04:31:06,051 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 [2024-11-09 04:31:06,068 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 [2024-11-09 04:31:06,084 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 [2024-11-09 04:31:06,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2024-11-09 04:31:06,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 04:31:06,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:06,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:06,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:06,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15286127] [2024-11-09 04:31:06,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588019688] [2024-11-09 04:31:06,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588019688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:06,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:06,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459281040] [2024-11-09 04:31:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:06,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:31:06,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:06,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:31:06,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:06,994 INFO L87 Difference]: Start difference. First operand 224 states and 244 transitions. Second operand has 7 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-09 04:31:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:08,722 INFO L93 Difference]: Finished difference Result 319 states and 324 transitions. [2024-11-09 04:31:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:31:08,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 23 [2024-11-09 04:31:08,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:08,728 INFO L225 Difference]: With dead ends: 319 [2024-11-09 04:31:08,728 INFO L226 Difference]: Without dead ends: 318 [2024-11-09 04:31:08,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:31:08,729 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 204 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:08,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 745 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 04:31:08,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-09 04:31:08,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 224. [2024-11-09 04:31:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 132 states have (on average 1.7575757575757576) internal successors, (232), 216 states have internal predecessors, (232), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 243 transitions. [2024-11-09 04:31:08,752 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 243 transitions. Word has length 23 [2024-11-09 04:31:08,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:08,753 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 243 transitions. [2024-11-09 04:31:08,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-09 04:31:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 243 transitions. [2024-11-09 04:31:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 04:31:08,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:08,754 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:08,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:08,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:08,959 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_25_to_33_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:08,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:08,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1130040912, now seen corresponding path program 1 times [2024-11-09 04:31:08,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:08,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596449544] [2024-11-09 04:31:08,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:08,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:08,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141638104] [2024-11-09 04:31:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:08,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:08,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:08,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:08,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:31:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:09,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:31:09,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:09,121 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2024-11-09 04:31:09,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-09 04:31:09,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:09,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 68 treesize of output 62 [2024-11-09 04:31:09,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:09,176 INFO L349 Elim1Store]: treesize reduction 36, result has 25.0 percent of original size [2024-11-09 04:31:09,177 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 2 case distinctions, treesize of input 36 treesize of output 36 [2024-11-09 04:31:09,245 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-11-09 04:31:09,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 16 [2024-11-09 04:31:09,249 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:09,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:09,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:09,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:09,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596449544] [2024-11-09 04:31:09,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:09,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141638104] [2024-11-09 04:31:09,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141638104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:09,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:09,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:09,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762071524] [2024-11-09 04:31:09,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:09,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:31:09,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:09,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:31:09,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:09,370 INFO L87 Difference]: Start difference. First operand 224 states and 243 transitions. Second operand has 7 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-09 04:31:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:09,777 INFO L93 Difference]: Finished difference Result 318 states and 323 transitions. [2024-11-09 04:31:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:31:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 24 [2024-11-09 04:31:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:09,782 INFO L225 Difference]: With dead ends: 318 [2024-11-09 04:31:09,782 INFO L226 Difference]: Without dead ends: 317 [2024-11-09 04:31:09,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:31:09,783 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 193 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:09,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 789 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:31:09,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-09 04:31:09,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 224. [2024-11-09 04:31:09,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 132 states have (on average 1.75) internal successors, (231), 216 states have internal predecessors, (231), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:09,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2024-11-09 04:31:09,799 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 24 [2024-11-09 04:31:09,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:09,800 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2024-11-09 04:31:09,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-09 04:31:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2024-11-09 04:31:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 04:31:09,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:09,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:09,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:31:10,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:10,007 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_25_to_33_0Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:10,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:10,007 INFO L85 PathProgramCache]: Analyzing trace with hash 671529979, now seen corresponding path program 1 times [2024-11-09 04:31:10,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:10,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197712227] [2024-11-09 04:31:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:10,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:10,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:10,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:10,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197712227] [2024-11-09 04:31:10,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197712227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:10,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:10,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:10,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709227050] [2024-11-09 04:31:10,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:10,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:31:10,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:10,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:31:10,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:31:10,129 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-09 04:31:10,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:10,913 INFO L93 Difference]: Finished difference Result 224 states and 242 transitions. [2024-11-09 04:31:10,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:31:10,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 25 [2024-11-09 04:31:10,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:10,916 INFO L225 Difference]: With dead ends: 224 [2024-11-09 04:31:10,916 INFO L226 Difference]: Without dead ends: 223 [2024-11-09 04:31:10,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:10,917 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 68 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:10,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 405 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:31:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-09 04:31:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-11-09 04:31:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 132 states have (on average 1.7348484848484849) internal successors, (229), 215 states have internal predecessors, (229), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:10,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 240 transitions. [2024-11-09 04:31:10,933 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 240 transitions. Word has length 25 [2024-11-09 04:31:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:10,933 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 240 transitions. [2024-11-09 04:31:10,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-11-09 04:31:10,936 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 240 transitions. [2024-11-09 04:31:10,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 04:31:10,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:10,937 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:10,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 04:31:10,937 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_25_to_33_0Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:10,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash -657407054, now seen corresponding path program 1 times [2024-11-09 04:31:10,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:10,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221239509] [2024-11-09 04:31:10,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:10,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:11,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:11,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:11,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221239509] [2024-11-09 04:31:11,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221239509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:11,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:11,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:11,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807091799] [2024-11-09 04:31:11,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:11,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:31:11,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:11,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:31:11,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:31:11,088 INFO L87 Difference]: Start difference. First operand 223 states and 240 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-09 04:31:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:11,900 INFO L93 Difference]: Finished difference Result 223 states and 240 transitions. [2024-11-09 04:31:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:31:11,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 26 [2024-11-09 04:31:11,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:11,901 INFO L225 Difference]: With dead ends: 223 [2024-11-09 04:31:11,901 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 04:31:11,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:11,902 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 44 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:11,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 405 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:31:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 04:31:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-09 04:31:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 132 states have (on average 1.7196969696969697) internal successors, (227), 214 states have internal predecessors, (227), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 238 transitions. [2024-11-09 04:31:11,919 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 238 transitions. Word has length 26 [2024-11-09 04:31:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:11,922 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 238 transitions. [2024-11-09 04:31:11,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-09 04:31:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 238 transitions. [2024-11-09 04:31:11,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 04:31:11,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:11,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:11,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:31:11,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_25_to_33_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:11,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1095217885, now seen corresponding path program 1 times [2024-11-09 04:31:11,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:11,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33872778] [2024-11-09 04:31:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:11,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:11,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347608990] [2024-11-09 04:31:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:11,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:11,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:11,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:11,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:31:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:12,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 04:31:12,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:12,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:12,123 INFO L349 Elim1Store]: treesize reduction 40, result has 35.5 percent of original size [2024-11-09 04:31:12,124 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 1 case distinctions, treesize of input 64 treesize of output 45 [2024-11-09 04:31:12,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:12,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:12,156 INFO L349 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2024-11-09 04:31:12,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-09 04:31:12,176 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 04:31:12,176 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 61 treesize of output 57 [2024-11-09 04:31:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:12,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:12,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:12,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33872778] [2024-11-09 04:31:12,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:12,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347608990] [2024-11-09 04:31:12,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347608990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:12,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:12,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:12,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961509805] [2024-11-09 04:31:12,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:12,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:31:12,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:12,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:31:12,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:31:12,619 INFO L87 Difference]: Start difference. First operand 222 states and 238 transitions. Second operand has 7 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-09 04:31:13,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:13,410 INFO L93 Difference]: Finished difference Result 313 states and 318 transitions. [2024-11-09 04:31:13,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:31:13,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 27 [2024-11-09 04:31:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:13,412 INFO L225 Difference]: With dead ends: 313 [2024-11-09 04:31:13,412 INFO L226 Difference]: Without dead ends: 309 [2024-11-09 04:31:13,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:31:13,414 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 181 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:13,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 672 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:31:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-09 04:31:13,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 222. [2024-11-09 04:31:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 132 states have (on average 1.6893939393939394) internal successors, (223), 214 states have internal predecessors, (223), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 04:31:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 234 transitions. [2024-11-09 04:31:13,430 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 234 transitions. Word has length 27 [2024-11-09 04:31:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:13,430 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 234 transitions. [2024-11-09 04:31:13,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-09 04:31:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 234 transitions. [2024-11-09 04:31:13,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 04:31:13,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:13,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:13,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:13,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:13,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_25_to_33_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_25_to_33_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_25_to_33_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-11-09 04:31:13,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:13,633 INFO L85 PathProgramCache]: Analyzing trace with hash 510595233, now seen corresponding path program 1 times [2024-11-09 04:31:13,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:13,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300017096] [2024-11-09 04:31:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:13,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:13,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552687086] [2024-11-09 04:31:13,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:13,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:13,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:13,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:13,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_083c7f51-0aac-45f2-9870-6ff976c59f9e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:31:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:13,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 04:31:13,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:13,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:13,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:13,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:14,370 INFO L349 Elim1Store]: treesize reduction 312, result has 29.7 percent of original size [2024-11-09 04:31:14,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 842 treesize of output 739 [2024-11-09 04:31:14,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2024-11-09 04:31:14,548 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 17 treesize of output 15 [2024-11-09 04:31:17,292 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 1854 treesize of output 1802 [2024-11-09 04:31:25,563 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 74 treesize of output 69 [2024-11-09 04:31:26,800 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 53 treesize of output 49 [2024-11-09 04:31:26,863 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 42 treesize of output 38 [2024-11-09 04:31:27,045 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 768 treesize of output 757 [2024-11-09 04:31:27,210 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 768 treesize of output 757 [2024-11-09 04:31:27,948 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 91 treesize of output 140 [2024-11-09 04:31:28,005 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 111 treesize of output 104 [2024-11-09 04:31:28,038 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 133 treesize of output 125 [2024-11-09 04:31:28,423 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 81 treesize of output 76 [2024-11-09 04:31:28,568 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 53 treesize of output 49 [2024-11-09 04:31:28,592 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 81 treesize of output 76 [2024-11-09 04:31:28,713 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 81 treesize of output 76 [2024-11-09 04:31:29,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 521 treesize of output 469 [2024-11-09 04:31:29,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 1 [2024-11-09 04:31:29,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 95 [2024-11-09 04:31:29,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 1 [2024-11-09 04:31:29,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:29,820 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:29,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 1374 treesize of output 1758 [2024-11-09 04:31:43,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,065 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,077 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,090 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,097 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 124 treesize of output 120 [2024-11-09 04:31:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,232 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,249 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,259 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 90 treesize of output 86 [2024-11-09 04:31:43,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,307 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,316 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,330 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,337 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 124 treesize of output 120 [2024-11-09 04:31:43,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,369 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,374 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,387 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,394 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 124 treesize of output 120 [2024-11-09 04:31:43,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,442 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,447 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,460 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,467 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 107 treesize of output 103 [2024-11-09 04:31:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,566 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,574 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,590 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 124 treesize of output 120 [2024-11-09 04:31:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:43,648 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,654 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,670 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,679 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:43,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 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 193 treesize of output 279 [2024-11-09 04:31:44,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,271 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 94 [2024-11-09 04:31:44,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,308 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,312 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 32 [2024-11-09 04:31:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,383 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 136 [2024-11-09 04:31:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,411 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,420 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,429 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 88 treesize of output 66 [2024-11-09 04:31:44,442 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 14 [2024-11-09 04:31:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,476 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,482 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 32 [2024-11-09 04:31:44,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,627 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 94 [2024-11-09 04:31:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,673 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,679 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:31:44,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 32 [2024-11-09 04:31:44,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:31:44,800 INFO L349 Elim1Store]: treesize reduction 271, result has 0.4 percent of original size [2024-11-09 04:31:44,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 9 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 12 new quantified variables, introduced 19 case distinctions, treesize of input 1923 treesize of output 2394 [2024-11-09 04:32:02,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,498 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,502 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,512 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 89 treesize of output 67 [2024-11-09 04:32:02,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,582 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,587 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,596 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 89 treesize of output 67 [2024-11-09 04:32:02,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,814 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,822 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 89 treesize of output 67 [2024-11-09 04:32:02,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,890 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,893 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,900 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 89 treesize of output 67 [2024-11-09 04:32:02,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:02,925 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,937 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,946 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:02,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 158 treesize of output 208 [2024-11-09 04:32:03,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:03,047 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,051 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,057 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 89 treesize of output 67 [2024-11-09 04:32:03,138 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,144 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 55 treesize of output 33 [2024-11-09 04:32:03,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:03,193 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,196 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,198 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,204 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 67 [2024-11-09 04:32:03,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:03,298 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,302 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:03,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 111 [2024-11-09 04:32:04,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,034 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,039 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 93 [2024-11-09 04:32:04,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,101 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,105 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 42 [2024-11-09 04:32:04,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,124 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 166 [2024-11-09 04:32:04,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,246 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 163 [2024-11-09 04:32:04,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,278 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 166 [2024-11-09 04:32:04,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,321 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 177 [2024-11-09 04:32:04,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:04,462 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:04,689 INFO L349 Elim1Store]: treesize reduction 255, result has 23.0 percent of original size [2024-11-09 04:32:04,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 2312 treesize of output 2159 [2024-11-09 04:32:09,748 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:09,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 35 [2024-11-09 04:32:09,891 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:09,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 35 [2024-11-09 04:32:10,485 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:10,495 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:10,528 INFO L349 Elim1Store]: treesize reduction 69, result has 10.4 percent of original size [2024-11-09 04:32:10,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 57 [2024-11-09 04:32:11,122 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:11,130 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:11,153 INFO L349 Elim1Store]: treesize reduction 39, result has 17.0 percent of original size [2024-11-09 04:32:11,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 130 treesize of output 57 [2024-11-09 04:32:12,081 INFO L349 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2024-11-09 04:32:12,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 504 treesize of output 470 [2024-11-09 04:32:12,411 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:12,417 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2024-11-09 04:32:12,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 173 treesize of output 125 [2024-11-09 04:32:12,664 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:12,689 INFO L349 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2024-11-09 04:32:12,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 183 treesize of output 133 [2024-11-09 04:32:13,592 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:13,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 35 [2024-11-09 04:32:13,797 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:32:13,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 35 [2024-11-09 04:32:13,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:13,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:13,996 INFO L349 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2024-11-09 04:32:13,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 937 treesize of output 866 [2024-11-09 04:32:14,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:14,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:14,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:14,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 83 [2024-11-09 04:32:14,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:14,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:14,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:14,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 372 treesize of output 318 [2024-11-09 04:32:14,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 291 [2024-11-09 04:32:14,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 291 treesize of output 289 [2024-11-09 04:32:14,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:14,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:32:20,513 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 425 DAG size of output: 86 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 04:32:20,514 INFO L349 Elim1Store]: treesize reduction 2161, result has 6.6 percent of original size [2024-11-09 04:32:20,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 66 case distinctions, treesize of input 3004 treesize of output 3038