./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E --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 ba87ab61cc50ccb52aece6219e7fc9da23076f2342241139ee756008f0599342 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:32:20,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:32:20,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:32:20,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:32:20,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:32:20,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:32:20,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:32:20,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:32:20,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:32:20,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:32:20,829 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:32:20,830 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:32:20,830 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:32:20,830 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:32:20,830 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:32:20,830 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:32:20,830 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:32:20,831 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:32:20,831 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:32:20,831 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:32:20,832 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:32:20,832 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:32:20,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:32:20,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:32:20,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:32:20,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:32:20,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:32:20,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:32:20,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:32:20,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:32:20,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:32:20,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:32:20,834 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:32:20,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:32:20,835 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:32:20,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:32:20,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:32:20,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:32:20,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:32:20,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:32:20,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:32:20,836 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> ba87ab61cc50ccb52aece6219e7fc9da23076f2342241139ee756008f0599342 [2024-11-14 05:32:21,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:32:21,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:32:21,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:32:21,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:32:21,185 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:32:21,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c Unable to find full path for "g++" [2024-11-14 05:32:23,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:32:23,891 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:32:23,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c [2024-11-14 05:32:23,905 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/data/66401dfe7/e83af9ad8a3d441da68e505e875335ec/FLAG4e592f685 [2024-11-14 05:32:23,934 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/data/66401dfe7/e83af9ad8a3d441da68e505e875335ec [2024-11-14 05:32:23,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:32:23,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:32:23,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:32:23,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:32:23,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:32:23,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:32:23" (1/1) ... [2024-11-14 05:32:23,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73cecf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:23, skipping insertion in model container [2024-11-14 05:32:23,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:32:23" (1/1) ... [2024-11-14 05:32:23,975 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:32:24,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:32:24,232 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:32:24,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:32:24,289 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:32:24,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24 WrapperNode [2024-11-14 05:32:24,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:32:24,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:32:24,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:32:24,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:32:24,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,351 INFO L138 Inliner]: procedures = 16, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-11-14 05:32:24,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:32:24,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:32:24,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:32:24,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:32:24,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:32:24,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:32:24,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:32:24,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:32:24,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (1/1) ... [2024-11-14 05:32:24,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:32:24,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:24,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:32:24,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:32:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2024-11-14 05:32:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2024-11-14 05:32:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:32:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:32:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:32:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:32:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:32:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:32:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:32:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:32:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:32:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:32:24,590 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:32:24,593 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:32:25,184 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-14 05:32:25,184 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:32:25,232 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:32:25,236 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:32:25,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:32:25 BoogieIcfgContainer [2024-11-14 05:32:25,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:32:25,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:32:25,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:32:25,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:32:25,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:32:23" (1/3) ... [2024-11-14 05:32:25,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3436bde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:32:25, skipping insertion in model container [2024-11-14 05:32:25,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:32:24" (2/3) ... [2024-11-14 05:32:25,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3436bde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:32:25, skipping insertion in model container [2024-11-14 05:32:25,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:32:25" (3/3) ... [2024-11-14 05:32:25,253 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1.c [2024-11-14 05:32:25,274 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:32:25,276 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_geo1.c that has 3 procedures, 64 locations, 1 initial locations, 0 loop locations, and 24 error locations. [2024-11-14 05:32:25,368 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:32:25,390 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;@26444082, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:32:25,390 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-14 05:32:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 58 states have internal predecessors, (59), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:32:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:32:25,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:25,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:32:25,404 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-14 05:32:25,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:25,412 INFO L85 PathProgramCache]: Analyzing trace with hash 118091621, now seen corresponding path program 1 times [2024-11-14 05:32:25,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:25,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474724410] [2024-11-14 05:32:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:25,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260538257] [2024-11-14 05:32:25,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:25,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:25,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:25,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:25,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:32:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:25,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-14 05:32:25,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:26,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:26,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:26,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:26,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:26,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2024-11-14 05:32:26,454 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,455 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,459 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,471 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:26,684 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,685 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,686 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,703 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:26,794 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,796 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,797 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,803 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,819 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:26,943 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,944 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,945 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:26,961 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:27,082 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:27,083 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:27,086 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:27,097 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:27,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 395 [2024-11-14 05:32:27,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-14 05:32:27,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-14 05:32:27,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:27,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-14 05:32:27,689 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 [2024-11-14 05:32:27,747 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 [2024-11-14 05:32:28,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-14 05:32:28,194 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:28,195 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:28,195 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:28,206 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:28,222 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:28,222 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:28,228 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:28,235 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:28,236 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:32:28,240 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 05:32:29,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 129 [2024-11-14 05:32:29,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:29,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2024-11-14 05:32:29,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2024-11-14 05:32:29,478 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 13 treesize of output 9 [2024-11-14 05:32:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:32:29,524 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:29,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474724410] [2024-11-14 05:32:29,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:32:29,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260538257] [2024-11-14 05:32:29,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260538257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:29,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:29,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:32:29,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399366851] [2024-11-14 05:32:29,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:29,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:32:29,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:32:29,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:32:29,571 INFO L87 Difference]: Start difference. First operand has 64 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 58 states have internal predecessors, (59), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:32:32,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:32,856 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2024-11-14 05:32:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:32:32,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 05:32:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:32,866 INFO L225 Difference]: With dead ends: 108 [2024-11-14 05:32:32,866 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 05:32:32,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2024-11-14 05:32:32,872 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 41 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:32,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 221 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 05:32:32,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 05:32:32,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2024-11-14 05:32:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 58 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:32:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2024-11-14 05:32:32,922 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 5 [2024-11-14 05:32:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:32,922 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2024-11-14 05:32:32,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:32:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2024-11-14 05:32:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:32:32,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:32,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 05:32:32,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:32:33,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:32:33,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-14 05:32:33,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash -634127008, now seen corresponding path program 1 times [2024-11-14 05:32:33,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887215511] [2024-11-14 05:32:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:33,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:33,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061528480] [2024-11-14 05:32:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:33,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:33,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:33,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:33,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:32:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:33,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-14 05:32:33,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:33,459 INFO L349 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2024-11-14 05:32:33,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 47 [2024-11-14 05:32:33,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:32:33,501 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-14 05:32:33,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 38 [2024-11-14 05:32:33,528 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-14 05:32:33,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 43 [2024-11-14 05:32:33,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:32:33,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 18 [2024-11-14 05:32:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:32:33,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:33,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:33,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887215511] [2024-11-14 05:32:33,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:32:33,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061528480] [2024-11-14 05:32:33,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061528480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:33,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:33,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:32:33,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625406037] [2024-11-14 05:32:33,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:33,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:32:33,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:33,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:32:33,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:32:33,716 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:32:34,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:34,063 INFO L93 Difference]: Finished difference Result 88 states and 91 transitions. [2024-11-14 05:32:34,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:32:34,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 05:32:34,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:34,065 INFO L225 Difference]: With dead ends: 88 [2024-11-14 05:32:34,066 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 05:32:34,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:32:34,067 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 52 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:34,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 197 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:32:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 05:32:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2024-11-14 05:32:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 69 states have internal predecessors, (76), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 05:32:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2024-11-14 05:32:34,084 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 6 [2024-11-14 05:32:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:34,084 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2024-11-14 05:32:34,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:32:34,084 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2024-11-14 05:32:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:32:34,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:34,085 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:34,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:32:34,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:34,288 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_28_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-14 05:32:34,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1816899271, now seen corresponding path program 1 times [2024-11-14 05:32:34,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:34,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872767601] [2024-11-14 05:32:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:34,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:34,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616359395] [2024-11-14 05:32:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:34,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:34,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:34,338 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:34,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:32:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:32:34,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:32:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:32:34,509 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:32:34,510 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:32:34,511 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_28_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-14 05:32:34,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-14 05:32:34,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-14 05:32:34,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-14 05:32:34,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-14 05:32:34,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-14 05:32:34,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-14 05:32:34,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-14 05:32:34,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-14 05:32:34,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-14 05:32:34,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-14 05:32:34,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-14 05:32:34,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-14 05:32:34,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-14 05:32:34,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-14 05:32:34,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-14 05:32:34,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-14 05:32:34,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:32:34,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:34,722 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 05:32:34,761 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:32:34,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:32:34 BoogieIcfgContainer [2024-11-14 05:32:34,765 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:32:34,766 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:32:34,766 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:32:34,766 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:32:34,767 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:32:25" (3/4) ... [2024-11-14 05:32:34,768 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 05:32:34,814 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:32:34,815 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:32:34,816 INFO L158 Benchmark]: Toolchain (without parser) took 10876.32ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 60.0MB in the end (delta: 32.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-14 05:32:34,817 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:32:34,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.77ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:32:34,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.69ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:32:34,819 INFO L158 Benchmark]: Boogie Preprocessor took 41.25ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 956.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:32:34,819 INFO L158 Benchmark]: RCFGBuilder took 839.17ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 60.5MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:32:34,820 INFO L158 Benchmark]: TraceAbstraction took 9523.61ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 61.4MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:32:34,821 INFO L158 Benchmark]: Witness Printer took 49.27ms. Allocated memory is still 117.4MB. Free memory was 61.4MB in the beginning and 60.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:32:34,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.77ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.69ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.25ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.2MB in the end (delta: 956.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 839.17ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 60.5MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9523.61ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 61.4MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.27ms. Allocated memory is still 117.4MB. Free memory was 61.4MB in the beginning and 60.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 57]: integer overflow possible integer overflow possible We found a FailurePath: [L78] int z; [L79] int k; [L80] int x; [L81] int y; [L82] int c; [L83] z = __VERIFIER_nondet_int() [L84] k = __VERIFIER_nondet_int() [L85] x = 1 [L86] EXPR \read(z) [L86] y = z [L87] c = 1 VAL [c={8:0}, k={7:0}, x={9:0}, y={5:0}, z={6:0}] [L88] CALL func_to_recursive_line_28_to_36_0(&y, &k, &x, &c, &z) VAL [\old(c)={8:0}, \old(k)={7:0}, \old(x)={9:0}, \old(y)={5:0}, \old(z)={6:0}] [L57] EXPR \read(*x) [L57] EXPR \read(*z) VAL [\old(c)={8:0}, \old(k)={7:0}, \old(x)={9:0}, \old(y)={5:0}, \old(z)={6:0}, c={8:0}, k={7:0}, x={9:0}, y={5:0}, z={6:0}] [L57] EXPR (*x) * (*z) [L57] EXPR \read(*x) VAL [\old(c)={8:0}, \old(k)={7:0}, \old(x)={9:0}, \old(y)={5:0}, \old(z)={6:0}, c={8:0}, k={7:0}, x={9:0}, y={5:0}, z={6:0}] [L57] ((*x) * (*z)) - (*x) VAL [\old(c)={8:0}, \old(k)={7:0}, \old(x)={9:0}, \old(y)={5:0}, \old(z)={6:0}, c={8:0}, k={7:0}, x={9:0}, y={5:0}, z={6:0}] - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 64 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 418 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 333 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 85 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=2, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 9 ConstructedInterpolants, 3 QuantifiedInterpolants, 1178 SizeOfPredicates, 30 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-14 05:32:34,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bc8b50-8040-40be-8536-e87ac9ada63e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)