./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d2226df89556021067dd01a2668200dd1f99aac7ec2d26741f3688f0af887e5c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:05:58,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:05:58,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:05:58,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:05:58,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:05:58,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:05:58,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:05:58,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:05:58,895 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:05:58,895 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:05:58,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:05:58,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:05:58,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:05:58,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:05:58,898 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:05:58,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:05:58,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:05:58,898 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:05:58,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:05:58,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:05:58,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:05:58,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:05:58,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:05:58,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:05:58,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:05:58,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:05:58,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:05:58,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:05:58,901 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> d2226df89556021067dd01a2668200dd1f99aac7ec2d26741f3688f0af887e5c [2024-11-13 16:05:59,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:05:59,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:05:59,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:05:59,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:05:59,256 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:05:59,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c Unable to find full path for "g++" [2024-11-13 16:06:01,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:06:01,432 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:06:01,433 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c [2024-11-13 16:06:01,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/data/30aa56a72/91a42a32f39c41819fbaa1d16cbf80e5/FLAG7abdf855a [2024-11-13 16:06:01,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/data/30aa56a72/91a42a32f39c41819fbaa1d16cbf80e5 [2024-11-13 16:06:01,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:06:01,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:06:01,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:06:01,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:06:01,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:06:01,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be31d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01, skipping insertion in model container [2024-11-13 16:06:01,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:06:01,652 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c[1083,1096] [2024-11-13 16:06:01,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:06:01,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:06:01,700 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c[1083,1096] [2024-11-13 16:06:01,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:06:01,731 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:06:01,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01 WrapperNode [2024-11-13 16:06:01,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:06:01,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:06:01,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:06:01,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:06:01,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,772 INFO L138 Inliner]: procedures = 16, calls = 51, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-11-13 16:06:01,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:06:01,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:06:01,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:06:01,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:06:01,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,809 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 8, 5, 6, 2, 4]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 3, 2, 1, 1, 2]. [2024-11-13 16:06:01,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:06:01,834 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:06:01,834 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:06:01,834 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:06:01,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (1/1) ... [2024-11-13 16:06:01,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:06:01,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:01,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:06:01,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:06:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2024-11-13 16:06:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 16:06:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:06:01,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:06:01,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:06:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:06:02,026 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:06:02,027 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:06:02,200 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-13 16:06:02,201 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:06:02,211 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:06:02,211 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:06:02,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:06:02 BoogieIcfgContainer [2024-11-13 16:06:02,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:06:02,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:06:02,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:06:02,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:06:02,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:06:01" (1/3) ... [2024-11-13 16:06:02,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f9a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:06:02, skipping insertion in model container [2024-11-13 16:06:02,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:06:01" (2/3) ... [2024-11-13 16:06:02,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f9a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:06:02, skipping insertion in model container [2024-11-13 16:06:02,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:06:02" (3/3) ... [2024-11-13 16:06:02,223 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1-u.c [2024-11-13 16:06:02,239 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:06:02,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_geo1-u.c that has 3 procedures, 23 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 16:06:02,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:06:02,322 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=PETRI_NET, 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;@3a4f9422, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:06:02,324 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:06:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-13 16:06:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:06:02,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:02,337 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:02,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:02,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash -831245217, now seen corresponding path program 1 times [2024-11-13 16:06:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:02,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188263306] [2024-11-13 16:06:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:06:02,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709075208] [2024-11-13 16:06:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:02,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:02,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:02,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:02,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:06:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:02,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-13 16:06:02,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:02,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 16:06:02,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:06:02,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:06:03,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 13 [2024-11-13 16:06:03,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 9 [2024-11-13 16:06:03,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:06:03,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:06:03,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:03,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188263306] [2024-11-13 16:06:03,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:06:03,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709075208] [2024-11-13 16:06:03,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709075208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:03,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:06:03,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:06:03,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897850681] [2024-11-13 16:06:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:03,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:06:03,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:03,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:06:03,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:06:03,271 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:06:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:03,546 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2024-11-13 16:06:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:06:03,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-13 16:06:03,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:03,555 INFO L225 Difference]: With dead ends: 55 [2024-11-13 16:06:03,555 INFO L226 Difference]: Without dead ends: 31 [2024-11-13 16:06:03,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:06:03,566 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:03,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 107 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:06:03,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-13 16:06:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-11-13 16:06:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 16:06:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2024-11-13 16:06:03,610 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 9 [2024-11-13 16:06:03,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:03,611 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2024-11-13 16:06:03,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:06:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2024-11-13 16:06:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 16:06:03,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:03,612 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:03,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:06:03,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 16:06:03,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:03,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:03,819 INFO L85 PathProgramCache]: Analyzing trace with hash -958977162, now seen corresponding path program 1 times [2024-11-13 16:06:03,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:03,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381545089] [2024-11-13 16:06:03,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:03,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:06:03,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877320991] [2024-11-13 16:06:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:03,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:06:03,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:06:03,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:06:03,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:06:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:04,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 107 conjuncts are in the unsatisfiable core [2024-11-13 16:06:04,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:06:04,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 16:06:04,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:06:04,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:06:05,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-13 16:06:05,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 16:06:05,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 44 treesize of output 28 [2024-11-13 16:06:05,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 26 treesize of output 14 [2024-11-13 16:06:05,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 13 [2024-11-13 16:06:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:06:05,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:06:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:06:15,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:15,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381545089] [2024-11-13 16:06:15,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:06:15,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877320991] [2024-11-13 16:06:15,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877320991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:06:15,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:06:15,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2024-11-13 16:06:15,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788956747] [2024-11-13 16:06:15,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:06:15,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 16:06:15,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 16:06:15,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=397, Unknown=2, NotChecked=0, Total=462 [2024-11-13 16:06:15,242 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 15 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:06:34,517 WARN L286 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 16:06:43,132 WARN L286 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 16:06:47,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:06:51,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:06:55,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:06:59,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:07:23,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:07:27,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:07:55,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:07:59,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:03,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:07,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:11,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:15,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:19,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:23,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:27,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:31,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:35,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:40,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-13 16:08:40,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:08:40,071 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-11-13 16:08:40,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 16:08:40,072 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 15 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-11-13 16:08:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:08:40,075 INFO L225 Difference]: With dead ends: 67 [2024-11-13 16:08:40,075 INFO L226 Difference]: Without dead ends: 65 [2024-11-13 16:08:40,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 80.0s TimeCoverageRelationStatistics Valid=190, Invalid=987, Unknown=13, NotChecked=0, Total=1190 [2024-11-13 16:08:40,077 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 73 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 27 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:08:40,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 176 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 219 Invalid, 18 Unknown, 0 Unchecked, 74.0s Time] [2024-11-13 16:08:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-13 16:08:40,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2024-11-13 16:08:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.15) internal successors, (46), 45 states have internal predecessors, (46), 11 states have call successors, (11), 8 states have call predecessors, (11), 10 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-13 16:08:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2024-11-13 16:08:40,100 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 19 [2024-11-13 16:08:40,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:08:40,101 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2024-11-13 16:08:40,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 15 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:08:40,102 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2024-11-13 16:08:40,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 16:08:40,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:08:40,102 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:08:40,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:08:40,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:08:40,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:08:40,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1338289088, now seen corresponding path program 1 times [2024-11-13 16:08:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:40,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925504667] [2024-11-13 16:08:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:40,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:08:40,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689000997] [2024-11-13 16:08:40,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:40,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:08:40,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:08:40,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:08:40,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:08:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:08:40,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:08:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:08:40,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:08:40,683 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:08:40,684 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:08:40,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 16:08:40,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:08:40,888 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 16:08:40,912 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:08:40,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:08:40 BoogieIcfgContainer [2024-11-13 16:08:40,914 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:08:40,915 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:08:40,915 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:08:40,915 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:08:40,916 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:06:02" (3/4) ... [2024-11-13 16:08:40,917 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 16:08:40,968 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:08:40,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:08:40,969 INFO L158 Benchmark]: Toolchain (without parser) took 159511.00ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 88.4MB in the end (delta: 3.4MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-11-13 16:08:40,969 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:08:40,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.26ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 80.4MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:08:40,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.01ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.4MB in the end (delta: 968.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:08:40,970 INFO L158 Benchmark]: Boogie Preprocessor took 58.31ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:08:40,970 INFO L158 Benchmark]: RCFGBuilder took 378.38ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 64.3MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:08:40,970 INFO L158 Benchmark]: TraceAbstraction took 158699.74ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 33.7MB in the end (delta: 30.2MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-11-13 16:08:40,971 INFO L158 Benchmark]: Witness Printer took 53.04ms. Allocated memory is still 117.4MB. Free memory was 33.7MB in the beginning and 88.4MB in the end (delta: -54.7MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-13 16:08:40,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.26ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 80.4MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.01ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.4MB in the end (delta: 968.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.31ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 378.38ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 64.3MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 158699.74ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 33.7MB in the end (delta: 30.2MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 53.04ms. Allocated memory is still 117.4MB. Free memory was 33.7MB in the beginning and 88.4MB in the end (delta: -54.7MB). Peak memory consumption was 9.6MB. 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: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L78] unsigned int z; [L79] unsigned int k; [L80] unsigned long long x; [L81] unsigned long long y; [L82] unsigned long long c; [L83] z = __VERIFIER_nondet_uint() [L84] k = __VERIFIER_nondet_uint() [L85] x = 1 [L86] EXPR \read(z) [L86] y = z [L87] c = 1 [L88] CALL func_to_recursive_line_28_to_36_0(&c, &y, &z, &x, &k) VAL [\old(c)={5:0}, \old(k)={7:0}, \old(x)={8:0}, \old(y)={6:0}, \old(z)={4:0}] [L57] EXPR \read(*x) [L57] EXPR \read(*z) [L57] EXPR \read(*x) [L57] EXPR \read(*y) VAL [\old(c)={5:0}, \old(k)={7:0}, \old(x)={8:0}, \old(y)={6:0}, \old(z)={4:0}, c={5:0}, k={7:0}, x={8:0}, y={6:0}, z={4:0}] [L57] CALL __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [\old(cond)=1] [L38] COND FALSE !(!cond) VAL [\old(cond)=1] [L57] RET __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [\old(c)={5:0}, \old(k)={7:0}, \old(x)={8:0}, \old(y)={6:0}, \old(z)={4:0}, c={5:0}, k={7:0}, x={8:0}, y={6:0}, z={4:0}] [L58] EXPR \read(*c) [L58] EXPR \read(*k) VAL [\old(c)={5:0}, \old(k)={7:0}, \old(x)={8:0}, \old(y)={6:0}, \old(z)={4:0}, c={5:0}, k={7:0}, x={8:0}, y={6:0}, z={4:0}] [L58] COND TRUE !((*c) < (*k)) [L88] RET func_to_recursive_line_28_to_36_0(&c, &y, &z, &x, &k) VAL [c={5:0}, k={7:0}, x={8:0}, y={6:0}, z={4:0}] [L89] EXPR \read(x) [L89] EXPR \read(z) [L89] x = x * (z - 1) [L90] EXPR \read(x) [L90] EXPR \read(y) [L90] CALL __VERIFIER_assert(((1 + x) - y) == 0) VAL [\old(cond)=0] [L38] COND TRUE !cond VAL [\old(cond)=0] [L42] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 158.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 145.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 74.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 283 SdHoareTripleChecker+Invalid, 74.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 33 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 80.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=2, InterpolantAutomatonStates: 30, 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 44 ConstructedInterpolants, 4 QuantifiedInterpolants, 948 SizeOfPredicates, 58 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 159 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/10 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! [2024-11-13 16:08:41,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dae8fa-2dfd-4266-821e-bd8a6d34e49c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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