./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 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2 --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 0.2.5-dev-4fc63b2 [2024-11-02 12:27:50,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:27:50,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:27:50,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:27:50,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:27:50,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:27:50,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:27:50,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:27:50,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:27:50,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:27:50,720 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:27:50,720 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:27:50,720 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:27:50,721 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:27:50,721 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:27:50,721 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:27:50,722 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:27:50,722 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:27:50,724 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:27:50,724 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:27:50,725 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:27:50,725 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:27:50,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:27:50,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:27:50,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:27:50,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:27:50,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:27:50,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:27:50,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:27:50,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:27:50,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:27:50,730 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:27:50,730 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:27:50,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:27:50,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:27:50,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:27:50,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:27:50,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:27:50,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:27:50,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:27:50,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:50,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:27:50,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:27:50,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:27:50,743 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:27:50,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:27:50,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:27:50,743 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:27:50,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:27:50,744 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_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba87ab61cc50ccb52aece6219e7fc9da23076f2342241139ee756008f0599342 [2024-11-02 12:27:51,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:27:51,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:27:51,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:27:51,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:27:51,058 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:27:51,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c Unable to find full path for "g++" [2024-11-02 12:27:52,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:27:53,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:27:53,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c [2024-11-02 12:27:53,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/data/6bceb07bb/de98cb9b7a774a099b661b0a8cabe6c7/FLAG9fac7f971 [2024-11-02 12:27:53,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/data/6bceb07bb/de98cb9b7a774a099b661b0a8cabe6c7 [2024-11-02 12:27:53,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:27:53,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:27:53,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:53,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:27:53,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:27:53,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f2970d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53, skipping insertion in model container [2024-11-02 12:27:53,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:27:53,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:53,740 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:27:53,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:53,780 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:27:53,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53 WrapperNode [2024-11-02 12:27:53,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:53,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:53,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:27:53,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:27:53,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,817 INFO L138 Inliner]: procedures = 16, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-11-02 12:27:53,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:53,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:27:53,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:27:53,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:27:53,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:27:53,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:27:53,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:27:53,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:27:53,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:53,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:53,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:27:53,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:27:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2024-11-02 12:27:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2024-11-02 12:27:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:27:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:27:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:27:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:27:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:27:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:27:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:27:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:27:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:27:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:27:54,044 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:27:54,046 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:27:54,465 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-02 12:27:54,465 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:27:54,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:27:54,524 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:27:54,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:54 BoogieIcfgContainer [2024-11-02 12:27:54,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:27:54,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:27:54,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:27:54,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:27:54,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:27:53" (1/3) ... [2024-11-02 12:27:54,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22acf929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:54, skipping insertion in model container [2024-11-02 12:27:54,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (2/3) ... [2024-11-02 12:27:54,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22acf929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:54, skipping insertion in model container [2024-11-02 12:27:54,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:54" (3/3) ... [2024-11-02 12:27:54,541 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1.c [2024-11-02 12:27:54,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:27:54,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-02 12:27:54,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:27:54,623 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;@20a52dcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:27:54,623 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-02 12:27:54,626 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) [2024-11-02 12:27:54,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-02 12:27:54,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:54,633 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-02 12:27:54,633 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)] === [2024-11-02 12:27:54,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash 118091621, now seen corresponding path program 1 times [2024-11-02 12:27:54,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:54,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967219607] [2024-11-02 12:27:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:27:54,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849986312] [2024-11-02 12:27:54,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:54,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:27:54,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:54,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:27:54,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:27:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:55,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-02 12:27:55,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:27:55,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:55,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:55,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:55,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:55,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:55,275 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 [2024-11-02 12:27:55,554 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,555 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,562 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,575 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:55,790 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,792 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,793 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,809 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:55,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,895 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,896 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,902 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:55,915 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:56,014 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:56,015 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:56,015 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:56,026 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:56,108 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:56,109 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:56,110 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:56,120 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:56,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,342 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 [2024-11-02 12:27:56,358 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 [2024-11-02 12:27:56,365 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 [2024-11-02 12:27:56,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:56,608 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 [2024-11-02 12:27:56,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-02 12:27:56,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-02 12:27:57,000 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 [2024-11-02 12:27:57,036 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:57,037 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:57,038 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:57,046 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:57,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:57,057 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:57,065 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:57,071 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:57,072 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-02 12:27:57,075 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-02 12:27:57,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,964 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 [2024-11-02 12:27:57,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:58,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:27:58,008 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 [2024-11-02 12:27:58,015 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 [2024-11-02 12:27:58,020 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 [2024-11-02 12:27:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:27:58,052 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:27:58,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:58,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967219607] [2024-11-02 12:27:58,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:27:58,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849986312] [2024-11-02 12:27:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849986312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:58,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:27:58,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070664687] [2024-11-02 12:27:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:58,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:27:58,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:27:58,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:27:58,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:27:58,098 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) [2024-11-02 12:28:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:00,330 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2024-11-02 12:28:00,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:28:00,333 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 [2024-11-02 12:28:00,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:00,341 INFO L225 Difference]: With dead ends: 108 [2024-11-02 12:28:00,342 INFO L226 Difference]: Without dead ends: 80 [2024-11-02 12:28:00,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2024-11-02 12:28:00,347 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 41 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-02 12:28:00,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 221 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 0.9s Time] [2024-11-02 12:28:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-02 12:28:00,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2024-11-02 12:28:00,386 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) [2024-11-02 12:28:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2024-11-02 12:28:00,390 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 5 [2024-11-02 12:28:00,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:00,390 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2024-11-02 12:28:00,390 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) [2024-11-02 12:28:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2024-11-02 12:28:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 12:28:00,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:00,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-02 12:28:00,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:28:00,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-02 12:28:00,596 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)] === [2024-11-02 12:28:00,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:00,597 INFO L85 PathProgramCache]: Analyzing trace with hash -634127008, now seen corresponding path program 1 times [2024-11-02 12:28:00,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:00,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22535814] [2024-11-02 12:28:00,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:00,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:28:00,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578118796] [2024-11-02 12:28:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:00,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:28:00,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:28:00,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:28:00,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:28:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:28:00,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-02 12:28:00,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:28:00,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:28:00,840 INFO L349 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2024-11-02 12:28:00,841 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 [2024-11-02 12:28:00,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 12:28:00,873 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-02 12:28:00,873 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 [2024-11-02 12:28:00,890 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-02 12:28:00,890 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 [2024-11-02 12:28:00,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-02 12:28:00,998 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 [2024-11-02 12:28:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:28:01,022 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:28:01,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:28:01,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22535814] [2024-11-02 12:28:01,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:28:01,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578118796] [2024-11-02 12:28:01,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578118796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:28:01,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:28:01,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:28:01,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487408299] [2024-11-02 12:28:01,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:28:01,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:28:01,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:28:01,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:28:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:28:01,026 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) [2024-11-02 12:28:01,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:28:01,258 INFO L93 Difference]: Finished difference Result 88 states and 91 transitions. [2024-11-02 12:28:01,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:28:01,259 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 [2024-11-02 12:28:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:28:01,260 INFO L225 Difference]: With dead ends: 88 [2024-11-02 12:28:01,260 INFO L226 Difference]: Without dead ends: 87 [2024-11-02 12:28:01,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:28:01,261 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 52 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-02 12:28:01,262 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] [2024-11-02 12:28:01,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-02 12:28:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2024-11-02 12:28:01,272 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) [2024-11-02 12:28:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2024-11-02 12:28:01,274 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 6 [2024-11-02 12:28:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:28:01,274 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2024-11-02 12:28:01,274 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) [2024-11-02 12:28:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2024-11-02 12:28:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 12:28:01,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:28:01,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:28:01,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:28:01,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-02 12:28:01,480 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)] === [2024-11-02 12:28:01,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:28:01,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1816899271, now seen corresponding path program 1 times [2024-11-02 12:28:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:28:01,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475097784] [2024-11-02 12:28:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:01,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:28:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:28:01,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242630281] [2024-11-02 12:28:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:28:01,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:28:01,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:28:01,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:28:01,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:28:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:28:01,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:28:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:28:01,683 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:28:01,684 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:28:01,685 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_28_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-02 12:28:01,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-02 12:28:01,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-02 12:28:01,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-02 12:28:01,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-02 12:28:01,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-02 12:28:01,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-02 12:28:01,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-02 12:28:01,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-02 12:28:01,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-02 12:28:01,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-02 12:28:01,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-02 12:28:01,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-02 12:28:01,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-02 12:28:01,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-02 12:28:01,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-02 12:28:01,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-02 12:28:01,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-02 12:28:01,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-02 12:28:01,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-02 12:28:01,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-02 12:28:01,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-02 12:28:01,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-02 12:28:01,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-02 12:28:01,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 12:28:01,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-02 12:28:01,894 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 12:28:01,918 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:28:01,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:28:01 BoogieIcfgContainer [2024-11-02 12:28:01,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:28:01,923 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:28:01,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:28:01,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:28:01,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:54" (3/4) ... [2024-11-02 12:28:01,924 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-02 12:28:01,961 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:28:01,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:28:01,962 INFO L158 Benchmark]: Toolchain (without parser) took 8455.07ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 94.7MB in the beginning and 89.1MB in the end (delta: 5.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-02 12:28:01,962 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:28:01,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.12ms. Allocated memory is still 153.1MB. Free memory was 94.4MB in the beginning and 81.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:28:01,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.87ms. Allocated memory is still 153.1MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:28:01,963 INFO L158 Benchmark]: Boogie Preprocessor took 41.13ms. Allocated memory is still 153.1MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:28:01,964 INFO L158 Benchmark]: RCFGBuilder took 662.24ms. Allocated memory is still 153.1MB. Free memory was 78.7MB in the beginning and 57.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 12:28:01,964 INFO L158 Benchmark]: TraceAbstraction took 7391.90ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 57.1MB in the beginning and 91.2MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:28:01,964 INFO L158 Benchmark]: Witness Printer took 38.76ms. Allocated memory is still 184.5MB. Free memory was 91.2MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:28:01,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.12ms. Allocated memory is still 153.1MB. Free memory was 94.4MB in the beginning and 81.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.87ms. Allocated memory is still 153.1MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.13ms. Allocated memory is still 153.1MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 662.24ms. Allocated memory is still 153.1MB. Free memory was 78.7MB in the beginning and 57.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7391.90ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 57.1MB in the beginning and 91.2MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.76ms. Allocated memory is still 184.5MB. Free memory was 91.2MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 7.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 418 SdHoareTripleChecker+Invalid, 0.9s 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, 1.9s 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.3s 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! [2024-11-02 12:28:01,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e1f9a7-7dcf-4f26-854e-fce59a293fd7/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)