./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:28:58,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:28:58,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 08:28:58,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:28:58,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:28:58,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:28:58,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:28:58,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:28:58,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:28:58,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:28:58,968 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:28:58,968 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:28:58,969 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:28:58,969 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:28:58,970 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:28:58,970 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:28:58,971 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:28:58,972 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:28:58,972 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:28:58,973 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:28:58,973 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:28:58,974 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:28:58,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:28:58,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:28:58,976 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 08:28:58,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:28:58,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 08:28:58,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:28:58,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:28:58,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:28:58,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:28:58,979 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 08:28:58,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 08:28:58,979 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 08:28:58,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:28:58,980 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:28:58,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:28:58,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:28:58,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:28:58,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:28:58,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:28:58,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:28:58,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:28:58,982 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:28:58,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:28:58,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:28:58,982 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:28:58,983 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:28:58,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:28:58,983 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_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 [2023-12-02 08:28:59,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:28:59,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:28:59,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:28:59,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:28:59,220 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:28:59,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2023-12-02 08:29:01,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:29:02,203 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:29:02,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2023-12-02 08:29:02,211 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/data/7c0428fa3/c5ad18858a764653a53c5088ff9882ce/FLAG64e1c2139 [2023-12-02 08:29:02,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/data/7c0428fa3/c5ad18858a764653a53c5088ff9882ce [2023-12-02 08:29:02,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:29:02,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:29:02,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:29:02,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:29:02,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:29:02,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b457867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02, skipping insertion in model container [2023-12-02 08:29:02,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,260 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:29:02,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:29:02,429 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:29:02,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:29:02,470 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:29:02,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02 WrapperNode [2023-12-02 08:29:02,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:29:02,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:29:02,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:29:02,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:29:02,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,509 INFO L138 Inliner]: procedures = 17, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-12-02 08:29:02,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:29:02,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:29:02,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:29:02,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:29:02,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:29:02,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:29:02,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:29:02,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:29:02,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (1/1) ... [2023-12-02 08:29:02,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:29:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:02,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:29:02,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:29:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:29:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:29:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_51_0 [2023-12-02 08:29:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_51_0 [2023-12-02 08:29:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:29:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_38_0 [2023-12-02 08:29:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_38_0 [2023-12-02 08:29:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 08:29:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:29:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:29:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 08:29:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 08:29:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 08:29:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:29:02,692 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:29:02,694 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:29:03,000 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:29:03,060 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:29:03,061 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 08:29:03,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:03 BoogieIcfgContainer [2023-12-02 08:29:03,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:29:03,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:29:03,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:29:03,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:29:03,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:29:02" (1/3) ... [2023-12-02 08:29:03,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b75d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:03, skipping insertion in model container [2023-12-02 08:29:03,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:02" (2/3) ... [2023-12-02 08:29:03,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b75d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:03, skipping insertion in model container [2023-12-02 08:29:03,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:03" (3/3) ... [2023-12-02 08:29:03,072 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_hard.c [2023-12-02 08:29:03,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:29:03,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-12-02 08:29:03,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:29:03,160 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71249e2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:29:03,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-12-02 08:29:03,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 43 states have (on average 1.6744186046511629) internal successors, (72), 69 states have internal predecessors, (72), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 08:29:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 08:29:03,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:03,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:03,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_31_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_31_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-12-02 08:29:03,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:03,183 INFO L85 PathProgramCache]: Analyzing trace with hash -676980882, now seen corresponding path program 1 times [2023-12-02 08:29:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:03,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757737300] [2023-12-02 08:29:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:03,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:03,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:03,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757737300] [2023-12-02 08:29:03,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 08:29:03,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346781547] [2023-12-02 08:29:03,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:03,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:03,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:03,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:03,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:29:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:03,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 08:29:03,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:03,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:03,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346781547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:03,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:03,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 08:29:03,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30451482] [2023-12-02 08:29:03,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:03,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 08:29:03,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:03,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 08:29:03,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:29:03,579 INFO L87 Difference]: Start difference. First operand has 82 states, 43 states have (on average 1.6744186046511629) internal successors, (72), 69 states have internal predecessors, (72), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 08:29:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:03,628 INFO L93 Difference]: Finished difference Result 140 states and 161 transitions. [2023-12-02 08:29:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 08:29:03,630 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-12-02 08:29:03,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:03,636 INFO L225 Difference]: With dead ends: 140 [2023-12-02 08:29:03,637 INFO L226 Difference]: Without dead ends: 77 [2023-12-02 08:29:03,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:29:03,642 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:03,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 08:29:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-02 08:29:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-12-02 08:29:03,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 66 states have internal predecessors, (67), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 08:29:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2023-12-02 08:29:03,681 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 10 [2023-12-02 08:29:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:03,682 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2023-12-02 08:29:03,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 08:29:03,682 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2023-12-02 08:29:03,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 08:29:03,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:03,684 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:03,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:29:03,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 08:29:03,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_31_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_31_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_31_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-12-02 08:29:03,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:03,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1972310320, now seen corresponding path program 1 times [2023-12-02 08:29:03,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:03,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908337986] [2023-12-02 08:29:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:03,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:03,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 08:29:03,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374534161] [2023-12-02 08:29:03,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:03,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:03,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:03,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69e19e8-03ff-4c03-b72c-ccd5bdc3706b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 08:29:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:04,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 08:29:04,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:04,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,320 INFO L349 Elim1Store]: treesize reduction 85, result has 30.9 percent of original size [2023-12-02 08:29:04,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 286 treesize of output 146 [2023-12-02 08:29:04,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:04,728 INFO L349 Elim1Store]: treesize reduction 242, result has 18.2 percent of original size [2023-12-02 08:29:04,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 372 treesize of output 540 [2023-12-02 08:29:04,907 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-12-02 08:29:04,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 325 treesize of output 309 [2023-12-02 08:29:05,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2023-12-02 08:29:05,948 INFO L349 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2023-12-02 08:29:05,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2023-12-02 08:29:06,087 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-12-02 08:29:06,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 26 [2023-12-02 08:29:06,220 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-12-02 08:29:06,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 26 [2023-12-02 08:29:06,336 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-12-02 08:29:06,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 68 [2023-12-02 08:29:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:06,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-12-02 08:29:06,669 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-12-02 08:29:06,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 68 [2023-12-02 08:29:06,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 08:29:06,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 23 [2023-12-02 08:29:06,861 INFO L349 Elim1Store]: treesize reduction 21, result has 12.5 percent of original size [2023-12-02 08:29:06,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2023-12-02 08:29:25,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:25,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:25,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:25,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:29:25,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 5429 treesize of output 5242 [2023-12-02 08:29:26,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 08:29:26,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 3097 treesize of output 3367 [2023-12-02 08:34:58,559 WARN L293 SmtUtils]: Spent 18.86s on a formula simplification. DAG size of input: 1585 DAG size of output: 1588 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:35:17,273 WARN L293 SmtUtils]: Spent 13.45s on a formula simplification. DAG size of input: 1564 DAG size of output: 1532 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:35:35,978 WARN L293 SmtUtils]: Spent 18.68s on a formula simplification. DAG size of input: 1535 DAG size of output: 1536 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:35:55,407 WARN L293 SmtUtils]: Spent 14.48s on a formula simplification. DAG size of input: 1534 DAG size of output: 1539 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:36:15,333 WARN L293 SmtUtils]: Spent 14.94s on a formula simplification. DAG size of input: 1533 DAG size of output: 1536 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:36:42,026 WARN L293 SmtUtils]: Spent 16.11s on a formula simplification. DAG size of input: 1523 DAG size of output: 1538 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:37:14,335 WARN L293 SmtUtils]: Spent 21.45s on a formula simplification. DAG size of input: 1499 DAG size of output: 1506 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:37:42,380 WARN L293 SmtUtils]: Spent 22.39s on a formula simplification. DAG size of input: 1498 DAG size of output: 1746 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:38:01,250 WARN L293 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 1520 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 08:41:57,798 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 1579 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)