./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/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_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ae1eacd45e2434e505261d43bb17259916099964617682d271ef41fa1c24d0c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:37:11,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:37:11,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:37:11,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:37:11,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:37:11,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:37:11,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:37:11,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:37:11,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:37:11,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:37:11,534 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:37:11,534 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:37:11,535 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:37:11,535 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:37:11,536 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:37:11,536 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:37:11,536 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:37:11,537 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:37:11,537 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:37:11,537 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:37:11,538 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:37:11,542 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:37:11,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:37:11,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:37:11,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:37:11,544 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:37:11,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:37:11,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:37:11,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:37:11,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:37:11,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:37:11,547 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:37:11,548 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:37:11,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:37:11,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:37:11,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:37:11,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:37:11,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:37:11,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:37:11,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:37:11,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:37:11,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:37:11,552 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:37:11,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:37:11,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:37:11,553 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:37:11,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:37:11,554 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_80497bbe-976f-4e3c-8b66-fcbea0ff35df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ae1eacd45e2434e505261d43bb17259916099964617682d271ef41fa1c24d0c [2024-11-09 06:37:11,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:37:11,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:37:11,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:37:11,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:37:11,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:37:11,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c Unable to find full path for "g++" [2024-11-09 06:37:13,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:37:14,136 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:37:14,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c [2024-11-09 06:37:14,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/data/405872cc6/01a6049eaa1547429edbdecefbfe410e/FLAG52f66afb0 [2024-11-09 06:37:14,161 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/data/405872cc6/01a6049eaa1547429edbdecefbfe410e [2024-11-09 06:37:14,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:37:14,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:37:14,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:37:14,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:37:14,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:37:14,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ba82a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14, skipping insertion in model container [2024-11-09 06:37:14,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:37:14,391 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c[1060,1073] [2024-11-09 06:37:14,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:37:14,425 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:37:14,438 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c[1060,1073] [2024-11-09 06:37:14,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:37:14,466 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:37:14,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14 WrapperNode [2024-11-09 06:37:14,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:37:14,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:37:14,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:37:14,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:37:14,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,504 INFO L138 Inliner]: procedures = 16, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-09 06:37:14,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:37:14,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:37:14,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:37:14,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:37:14,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:37:14,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:37:14,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:37:14,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:37:14,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (1/1) ... [2024-11-09 06:37:14,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:37:14,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:14,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:37:14,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:37:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:37:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:37:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:37:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:37:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:37:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_42_0 [2024-11-09 06:37:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_42_0 [2024-11-09 06:37:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:37:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:37:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:37:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:37:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:37:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:37:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:37:14,719 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:37:14,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:37:14,979 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-09 06:37:14,979 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:37:15,040 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:37:15,041 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:37:15,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:37:15 BoogieIcfgContainer [2024-11-09 06:37:15,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:37:15,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:37:15,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:37:15,047 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:37:15,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:37:14" (1/3) ... [2024-11-09 06:37:15,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5aa437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:15, skipping insertion in model container [2024-11-09 06:37:15,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:14" (2/3) ... [2024-11-09 06:37:15,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5aa437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:15, skipping insertion in model container [2024-11-09 06:37:15,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:37:15" (3/3) ... [2024-11-09 06:37:15,051 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_fermat2-ll.c [2024-11-09 06:37:15,068 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:37:15,069 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:37:15,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:37:15,133 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;@34d3a661, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:37:15,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:37:15,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:37:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:37:15,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:15,143 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:15,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:37:15,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1769458652, now seen corresponding path program 1 times [2024-11-09 06:37:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:15,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103090531] [2024-11-09 06:37:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:37:15,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736522863] [2024-11-09 06:37:15,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:15,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:15,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:15,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:15,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:37:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:15,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-09 06:37:15,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:15,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:37:15,785 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 06:37:15,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-09 06:37:16,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:16,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:16,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 37 [2024-11-09 06:37:16,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 41 [2024-11-09 06:37:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:37:16,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:37:16,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:16,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103090531] [2024-11-09 06:37:16,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:37:16,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736522863] [2024-11-09 06:37:16,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736522863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:16,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:16,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:37:16,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831860068] [2024-11-09 06:37:16,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:16,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:37:16,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:16,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:37:16,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:37:16,880 INFO L87 Difference]: Start difference. First operand has 26 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:37:19,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:37:21,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:37:23,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:37:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:23,348 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2024-11-09 06:37:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:37:23,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-09 06:37:23,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:23,361 INFO L225 Difference]: With dead ends: 56 [2024-11-09 06:37:23,362 INFO L226 Difference]: Without dead ends: 36 [2024-11-09 06:37:23,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:37:23,371 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:23,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 110 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2024-11-09 06:37:23,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-09 06:37:23,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2024-11-09 06:37:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 06:37:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2024-11-09 06:37:23,425 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 16 [2024-11-09 06:37:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:23,427 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-11-09 06:37:23,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:37:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2024-11-09 06:37:23,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:37:23,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:23,430 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:23,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:37:23,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:23,635 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:37:23,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:23,636 INFO L85 PathProgramCache]: Analyzing trace with hash -782824073, now seen corresponding path program 1 times [2024-11-09 06:37:23,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:23,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415616497] [2024-11-09 06:37:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:23,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:37:23,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485680998] [2024-11-09 06:37:23,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:23,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:23,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:23,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:23,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:37:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:24,613 WARN L253 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-09 06:37:24,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:24,643 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 06:37:24,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-09 06:37:24,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:37:25,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:25,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:25,185 INFO L349 Elim1Store]: treesize reduction 90, result has 24.4 percent of original size [2024-11-09 06:37:25,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 125 treesize of output 93 [2024-11-09 06:37:31,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:31,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:31,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 171 [2024-11-09 06:37:31,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 135 [2024-11-09 06:37:31,648 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 130 treesize of output 112 [2024-11-09 06:37:31,658 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 90 treesize of output 74 [2024-11-09 06:37:31,701 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 06:37:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:39,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:39,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:37:39,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 193 [2024-11-09 06:37:39,726 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 91 treesize of output 73 [2024-11-09 06:37:39,759 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 7 treesize of output 5 [2024-11-09 06:37:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:45,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:38:07,423 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_func_to_recursive_line_33_to_42_0_#in~r.base|))) (let ((.cse6 (select .cse5 |c_func_to_recursive_line_33_to_42_0_#in~r.offset|))) (and (or (let ((.cse3 (store |c_#memory_int| |c_func_to_recursive_line_33_to_42_0_#in~r.base| (store .cse5 |c_func_to_recursive_line_33_to_42_0_#in~r.offset| (+ (* (- 1) (select (select |c_#memory_int| |c_func_to_recursive_line_33_to_42_0_#in~v.base|) |c_func_to_recursive_line_33_to_42_0_#in~v.offset|)) .cse6))))) (let ((.cse4 (select .cse3 |c_func_to_recursive_line_33_to_42_0_#in~v.base|))) (let ((.cse1 (select .cse4 |c_func_to_recursive_line_33_to_42_0_#in~v.offset|))) (let ((.cse2 (store .cse3 |c_func_to_recursive_line_33_to_42_0_#in~v.base| (store .cse4 |c_func_to_recursive_line_33_to_42_0_#in~v.offset| (+ 2 .cse1))))) (let ((.cse0 (select (select .cse2 |c_func_to_recursive_line_33_to_42_0_#in~u.base|) |c_func_to_recursive_line_33_to_42_0_#in~u.offset|))) (= (* .cse0 .cse0) (+ (* .cse0 2) (* .cse1 .cse1) (* (select (select .cse2 |c_func_to_recursive_line_33_to_42_0_#in~r.base|) |c_func_to_recursive_line_33_to_42_0_#in~r.offset|) 4) (* 2 .cse1) (* (select (select .cse2 |c_func_to_recursive_line_33_to_42_0_#in~A.base|) |c_func_to_recursive_line_33_to_42_0_#in~A.offset|) 4)))))))) (< .cse6 1)) (or (let ((.cse10 (store |c_#memory_int| |c_func_to_recursive_line_33_to_42_0_#in~r.base| (store .cse5 |c_func_to_recursive_line_33_to_42_0_#in~r.offset| (+ (select (select |c_#memory_int| |c_func_to_recursive_line_33_to_42_0_#in~u.base|) |c_func_to_recursive_line_33_to_42_0_#in~u.offset|) .cse6))))) (let ((.cse11 (select .cse10 |c_func_to_recursive_line_33_to_42_0_#in~u.base|))) (let ((.cse7 (select .cse11 |c_func_to_recursive_line_33_to_42_0_#in~u.offset|))) (let ((.cse9 (store .cse10 |c_func_to_recursive_line_33_to_42_0_#in~u.base| (store .cse11 |c_func_to_recursive_line_33_to_42_0_#in~u.offset| (+ .cse7 2))))) (let ((.cse8 (select (select .cse9 |c_func_to_recursive_line_33_to_42_0_#in~v.base|) |c_func_to_recursive_line_33_to_42_0_#in~v.offset|))) (= (+ (* .cse7 2) (* 2 .cse8) (* .cse7 .cse7)) (+ (* (select (select .cse9 |c_func_to_recursive_line_33_to_42_0_#in~r.base|) |c_func_to_recursive_line_33_to_42_0_#in~r.offset|) 4) (* .cse8 .cse8) (* 4 (select (select .cse9 |c_func_to_recursive_line_33_to_42_0_#in~A.base|) |c_func_to_recursive_line_33_to_42_0_#in~A.offset|))))))))) (< 0 .cse6))))) is different from false [2024-11-09 06:38:12,734 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~R~0#1| |c_ULTIMATE.start_main_~R~0#1|)) (.cse11 (select |c_#memory_int| |c_ULTIMATE.start_main_~#u~0#1.base|)) (.cse12 (+ (* |c_ULTIMATE.start_main_~R~0#1| 2) 1))) (and (forall ((|ULTIMATE.start_main_~#r~0#1.offset| Int) (|ULTIMATE.start_main_~#v~0#1.offset| Int) (|ULTIMATE.start_main_~#u~0#1.offset| Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#u~0#1.base| (store .cse11 |ULTIMATE.start_main_~#u~0#1.offset| .cse12)))) (let ((.cse8 (store .cse5 |c_ULTIMATE.start_main_~#v~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#v~0#1.base|) |ULTIMATE.start_main_~#v~0#1.offset| 1)))) (let ((.cse1 (select (select .cse8 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|))) (or (< .cse0 (+ .cse1 1)) (let ((.cse6 (let ((.cse9 (select .cse8 |c_ULTIMATE.start_main_~#r~0#1.base|))) (store .cse9 |ULTIMATE.start_main_~#r~0#1.offset| (let ((.cse10 (* (- 1) .cse1))) (+ (* (- 1) (select (select (store .cse8 |c_ULTIMATE.start_main_~#r~0#1.base| (store .cse9 |ULTIMATE.start_main_~#r~0#1.offset| (+ .cse0 .cse10))) |c_ULTIMATE.start_main_~#v~0#1.base|) |ULTIMATE.start_main_~#v~0#1.offset|)) .cse0 .cse10)))))) (let ((.cse7 (select (store .cse8 |c_ULTIMATE.start_main_~#r~0#1.base| .cse6) |c_ULTIMATE.start_main_~#v~0#1.base|))) (let ((.cse3 (select .cse7 |ULTIMATE.start_main_~#v~0#1.offset|))) (let ((.cse4 (store (store .cse5 |c_ULTIMATE.start_main_~#r~0#1.base| .cse6) |c_ULTIMATE.start_main_~#v~0#1.base| (store .cse7 |ULTIMATE.start_main_~#v~0#1.offset| (+ 2 .cse3))))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~#u~0#1.base|) |ULTIMATE.start_main_~#u~0#1.offset|))) (= (* .cse2 .cse2) (+ (* 2 .cse3) (* (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) 4) (* (select (select .cse4 |c_ULTIMATE.start_main_~#r~0#1.base|) |ULTIMATE.start_main_~#r~0#1.offset|) 4) (* .cse3 .cse3) (* .cse2 2))))))))))))) (forall ((|ULTIMATE.start_main_~#r~0#1.offset| Int) (|ULTIMATE.start_main_~#v~0#1.offset| Int) (|ULTIMATE.start_main_~#u~0#1.offset| Int)) (let ((.cse23 (store |c_#memory_int| |c_ULTIMATE.start_main_~#u~0#1.base| (store .cse11 |ULTIMATE.start_main_~#u~0#1.offset| .cse12)))) (let ((.cse16 (store (select .cse23 |c_ULTIMATE.start_main_~#v~0#1.base|) |ULTIMATE.start_main_~#v~0#1.offset| 1))) (let ((.cse19 (store .cse23 |c_ULTIMATE.start_main_~#v~0#1.base| .cse16))) (let ((.cse22 (select (select .cse19 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|))) (or (let ((.cse17 (let ((.cse20 (select .cse19 |c_ULTIMATE.start_main_~#r~0#1.base|))) (store .cse20 |ULTIMATE.start_main_~#r~0#1.offset| (let ((.cse21 (* (- 1) .cse22))) (+ .cse0 (select (select (store .cse19 |c_ULTIMATE.start_main_~#r~0#1.base| (store .cse20 |ULTIMATE.start_main_~#r~0#1.offset| (+ .cse0 .cse21))) |c_ULTIMATE.start_main_~#u~0#1.base|) |ULTIMATE.start_main_~#u~0#1.offset|) .cse21)))))) (let ((.cse18 (select (store .cse19 |c_ULTIMATE.start_main_~#r~0#1.base| .cse17) |c_ULTIMATE.start_main_~#u~0#1.base|))) (let ((.cse13 (select .cse18 |ULTIMATE.start_main_~#u~0#1.offset|))) (let ((.cse15 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#v~0#1.base| .cse16) |c_ULTIMATE.start_main_~#r~0#1.base| .cse17) |c_ULTIMATE.start_main_~#u~0#1.base| (store .cse18 |ULTIMATE.start_main_~#u~0#1.offset| (+ 2 .cse13))))) (let ((.cse14 (select (select .cse15 |c_ULTIMATE.start_main_~#v~0#1.base|) |ULTIMATE.start_main_~#v~0#1.offset|))) (= (+ (* 2 .cse13) (* .cse13 .cse13) (* 2 .cse14)) (+ (* .cse14 .cse14) (* (select (select .cse15 |c_ULTIMATE.start_main_~#r~0#1.base|) |ULTIMATE.start_main_~#r~0#1.offset|) 4) (* (select (select .cse15 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) 4)))))))) (< .cse22 .cse0))))))))) is different from false [2024-11-09 06:38:16,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:16,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415616497] [2024-11-09 06:38:16,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:38:16,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485680998] [2024-11-09 06:38:16,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485680998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:38:16,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [640809269] [2024-11-09 06:38:16,403 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 06:38:16,404 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:38:16,409 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:38:16,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:38:16,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-09 06:38:16,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864554038] [2024-11-09 06:38:16,413 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:38:16,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:38:16,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:16,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:38:16,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=569, Unknown=10, NotChecked=98, Total=756 [2024-11-09 06:38:16,416 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 6 states have call successors, (6), 6 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:38:18,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:38:21,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:38:36,618 WARN L286 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:39:00,530 WARN L286 SmtUtils]: Spent 13.74s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:39:03,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:39:05,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:39:11,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:39:13,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:39:15,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:39:15,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:15,876 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2024-11-09 06:39:15,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:39:15,877 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 6 states have call successors, (6), 6 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2024-11-09 06:39:15,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:15,880 INFO L225 Difference]: With dead ends: 67 [2024-11-09 06:39:15,880 INFO L226 Difference]: Without dead ends: 61 [2024-11-09 06:39:15,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 82.1s TimeCoverageRelationStatistics Valid=140, Invalid=1040, Unknown=18, NotChecked=134, Total=1332 [2024-11-09 06:39:15,882 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 40 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 9 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:15,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 147 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 273 Invalid, 9 Unknown, 0 Unchecked, 17.8s Time] [2024-11-09 06:39:15,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-09 06:39:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2024-11-09 06:39:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 10 states have call successors, (10), 9 states have call predecessors, (10), 8 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-09 06:39:15,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2024-11-09 06:39:15,905 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 26 [2024-11-09 06:39:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:15,906 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2024-11-09 06:39:15,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 6 states have call successors, (6), 6 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:39:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2024-11-09 06:39:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:39:15,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:15,907 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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 06:39:15,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:39:16,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:16,111 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:16,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1172346088, now seen corresponding path program 1 times [2024-11-09 06:39:16,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:16,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291971288] [2024-11-09 06:39:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:16,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:39:16,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400054570] [2024-11-09 06:39:16,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:16,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:16,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:16,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:39:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:16,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-09 06:39:16,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:16,409 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 06:39:16,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-09 06:39:16,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:39:16,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:16,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:16,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 48 [2024-11-09 06:39:17,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 42 [2024-11-09 06:39:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:17,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:39,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291971288] [2024-11-09 06:39:39,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:39:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400054570] [2024-11-09 06:39:39,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400054570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:39:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2012734923] [2024-11-09 06:39:39,395 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-09 06:39:39,395 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:39:39,395 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:39:39,400 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:39:39,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:39:40,487 INFO L197 IcfgInterpreter]: Interpreting procedure func_to_recursive_line_33_to_42_0 with input of size 122 for LOIs [2024-11-09 06:39:41,206 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 195 for LOIs [2024-11-09 06:39:41,668 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 172 for LOIs [2024-11-09 06:39:41,743 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:40:36,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2012734923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:36,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:40:36,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [15] total 33 [2024-11-09 06:40:36,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836338082] [2024-11-09 06:40:36,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:36,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 06:40:36,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:36,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 06:40:36,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1456, Unknown=26, NotChecked=0, Total=1640 [2024-11-09 06:40:36,811 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 20 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:40:52,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:40:54,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:02,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:02,962 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2024-11-09 06:41:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:41:02,963 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 26 [2024-11-09 06:41:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:02,964 INFO L225 Difference]: With dead ends: 59 [2024-11-09 06:41:02,965 INFO L226 Difference]: Without dead ends: 51 [2024-11-09 06:41:02,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 90.1s TimeCoverageRelationStatistics Valid=167, Invalid=1529, Unknown=26, NotChecked=0, Total=1722 [2024-11-09 06:41:02,967 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:02,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 91 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 294 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2024-11-09 06:41:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-09 06:41:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-09 06:41:02,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 34 states have internal predecessors, (36), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-09 06:41:02,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-09 06:41:02,991 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 26 [2024-11-09 06:41:02,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:02,992 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-09 06:41:02,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:41:02,992 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-09 06:41:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 06:41:02,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:02,993 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:41:03,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:41:03,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:03,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:41:03,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:03,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1716603218, now seen corresponding path program 2 times [2024-11-09 06:41:03,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:41:03,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456319630] [2024-11-09 06:41:03,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:03,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:41:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:41:03,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225849552] [2024-11-09 06:41:03,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:41:03,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:03,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:03,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:41:03,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80497bbe-976f-4e3c-8b66-fcbea0ff35df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:41:04,969 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 06:41:04,970 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:41:04,974 WARN L253 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 224 conjuncts are in the unsatisfiable core [2024-11-09 06:41:04,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:04,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:41:05,024 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-09 06:41:05,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-09 06:41:05,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:05,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:05,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 48 [2024-11-09 06:41:12,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:22,393 WARN L286 SmtUtils]: Spent 9.97s on a formula simplification. DAG size of input: 218 DAG size of output: 75 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:41:22,393 INFO L349 Elim1Store]: treesize reduction 625, result has 18.7 percent of original size [2024-11-09 06:41:22,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 35 case distinctions, treesize of input 320 treesize of output 365 [2024-11-09 06:41:57,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:57,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:57,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:57,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:45:17,727 WARN L286 SmtUtils]: Spent 3.32m on a formula simplification. DAG size of input: 1684 DAG size of output: 443 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:45:17,727 INFO L349 Elim1Store]: treesize reduction 7728, result has 8.6 percent of original size [2024-11-09 06:45:17,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 39 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 47 new quantified variables, introduced 252 case distinctions, treesize of input 35227 treesize of output 44358 [2024-11-09 06:45:25,943 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 9564 treesize of output 9554 [2024-11-09 06:45:29,185 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 9554 treesize of output 9550 [2024-11-09 06:45:32,237 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 9550 treesize of output 9548 [2024-11-09 06:45:35,377 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 9548 treesize of output 9538 [2024-11-09 06:45:38,538 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 9538 treesize of output 9534 [2024-11-09 06:45:41,703 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 9534 treesize of output 9532 [2024-11-09 06:45:44,945 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 9532 treesize of output 9520 [2024-11-09 06:45:48,023 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 9520 treesize of output 9518 [2024-11-09 06:45:51,339 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 9518 treesize of output 9514 [2024-11-09 06:45:54,660 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 9514 treesize of output 9510 [2024-11-09 06:45:57,927 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 9510 treesize of output 9502 [2024-11-09 06:46:01,045 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 9502 treesize of output 9498 [2024-11-09 06:46:04,363 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 9498 treesize of output 9490 [2024-11-09 06:46:07,413 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 9490 treesize of output 9488 [2024-11-09 06:46:10,508 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 9488 treesize of output 9482 [2024-11-09 06:46:13,631 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 9482 treesize of output 9478 [2024-11-09 06:46:16,789 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 9478 treesize of output 9476 [2024-11-09 06:46:20,150 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 9476 treesize of output 9474 [2024-11-09 06:46:23,244 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 9474 treesize of output 9468 [2024-11-09 06:46:26,444 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 9468 treesize of output 9464 [2024-11-09 06:46:29,466 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 9464 treesize of output 9462 [2024-11-09 06:46:32,550 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 9462 treesize of output 9454 [2024-11-09 06:46:36,004 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 9454 treesize of output 9450 [2024-11-09 06:46:39,238 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 9450 treesize of output 9448 [2024-11-09 06:46:42,483 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 9448 treesize of output 9444 [2024-11-09 06:46:45,807 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 9444 treesize of output 9440 [2024-11-09 06:46:48,883 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 9440 treesize of output 9436 [2024-11-09 06:46:52,033 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 9436 treesize of output 9432 [2024-11-09 06:46:55,274 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 9432 treesize of output 9430 [2024-11-09 06:46:58,392 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 9430 treesize of output 9428 [2024-11-09 06:47:01,671 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 9428 treesize of output 9424 [2024-11-09 06:47:04,888 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 9424 treesize of output 9422 [2024-11-09 06:47:07,988 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 9422 treesize of output 9420