./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC --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 722a6c2325e178455ceb6f9a0812ca1e5ef141d97feae1105819600e3d70fcbd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:59:06,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:59:06,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:59:06,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:59:06,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:59:06,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:59:06,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:59:06,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:59:06,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:59:06,418 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:59:06,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:59:06,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:59:06,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:59:06,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:59:06,419 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:59:06,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:59:06,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:59:06,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:59:06,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:59:06,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:59:06,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:59:06,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:59:06,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:59:06,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:59:06,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:59:06,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:59:06,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:59:06,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:59:06,422 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:59:06,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:59:06,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:59:06,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:59:06,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:06,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:59:06,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:59:06,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:59:06,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:59:06,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:06,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:59:06,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:59:06,424 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:59:06,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:59:06,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:59:06,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:59:06,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:59:06,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:59:06,425 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:59:06,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:59:06,426 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_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC 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 -> 722a6c2325e178455ceb6f9a0812ca1e5ef141d97feae1105819600e3d70fcbd [2024-11-23 22:59:06,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:59:06,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:59:06,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:59:06,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:59:06,788 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:59:06,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-2.c [2024-11-23 22:59:10,259 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/data/c619effab/aa30a7c55aa84836843a4f882e439ad6/FLAG2bb89357d [2024-11-23 22:59:10,723 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:59:10,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-2.c [2024-11-23 22:59:10,744 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/data/c619effab/aa30a7c55aa84836843a4f882e439ad6/FLAG2bb89357d [2024-11-23 22:59:10,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/data/c619effab/aa30a7c55aa84836843a4f882e439ad6 [2024-11-23 22:59:10,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:59:10,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:59:10,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:10,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:59:10,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:59:10,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:10" (1/1) ... [2024-11-23 22:59:10,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72be3b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:10, skipping insertion in model container [2024-11-23 22:59:10,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:10" (1/1) ... [2024-11-23 22:59:10,835 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:59:11,449 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_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-2.c[38025,38038] [2024-11-23 22:59:11,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:11,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:59:11,766 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_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-2.c[38025,38038] [2024-11-23 22:59:11,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:11,794 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:59:11,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11 WrapperNode [2024-11-23 22:59:11,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:11,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:11,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:59:11,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:59:11,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:11,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,397 INFO L138 Inliner]: procedures = 13, calls = 709, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6902 [2024-11-23 22:59:12,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:12,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:59:12,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:59:12,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:59:12,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,678 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:59:12,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:12,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:13,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:13,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:13,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:59:13,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:59:13,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:59:13,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:59:13,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (1/1) ... [2024-11-23 22:59:13,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:13,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:13,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:59:13,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:59:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:59:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:59:13,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:59:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:59:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-23 22:59:13,241 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-23 22:59:13,821 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:59:13,824 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:59:29,529 INFO L? ?]: Removed 1643 outVars from TransFormulas that were not future-live. [2024-11-23 22:59:29,529 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:59:29,642 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:59:29,646 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 22:59:29,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:29 BoogieIcfgContainer [2024-11-23 22:59:29,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:59:29,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:59:29,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:59:29,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:59:29,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:59:10" (1/3) ... [2024-11-23 22:59:29,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e53364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:29, skipping insertion in model container [2024-11-23 22:59:29,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:11" (2/3) ... [2024-11-23 22:59:29,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e53364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:29, skipping insertion in model container [2024-11-23 22:59:29,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:29" (3/3) ... [2024-11-23 22:59:29,664 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-1-6-unsat-2.c [2024-11-23 22:59:29,684 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:59:29,687 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-1-6-unsat-2.c that has 2 procedures, 3159 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 22:59:29,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:59:29,888 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;@1d0f5a1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:59:29,889 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:59:29,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 3159 states, 2454 states have (on average 1.5289323553382232) internal successors, (3752), 2455 states have internal predecessors, (3752), 702 states have call successors, (702), 1 states have call predecessors, (702), 1 states have return successors, (702), 702 states have call predecessors, (702), 702 states have call successors, (702) [2024-11-23 22:59:30,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4664 [2024-11-23 22:59:30,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:30,208 INFO L218 NwaCegarLoop]: trace histogram [702, 702, 702, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:30,209 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:30,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:30,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1594472448, now seen corresponding path program 1 times [2024-11-23 22:59:30,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:30,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12247123] [2024-11-23 22:59:30,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:30,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 984204 backedges. 7107 proven. 31824 refuted. 0 times theorem prover too weak. 945273 trivial. 0 not checked. [2024-11-23 23:01:56,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12247123] [2024-11-23 23:01:56,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12247123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:01:56,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789268050] [2024-11-23 23:01:56,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:56,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:01:56,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:01:56,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:01:56,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f53f1ad-3c77-4a0b-82d6-80acdceb7c75/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:01:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:59,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 8990 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-23 23:01:59,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 984204 backedges. 19368 proven. 25980 refuted. 0 times theorem prover too weak. 938856 trivial. 0 not checked. [2024-11-23 23:03:05,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 984204 backedges. 2664 proven. 26232 refuted. 0 times theorem prover too weak. 955308 trivial. 0 not checked. [2024-11-23 23:04:24,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789268050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:04:24,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:04:24,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 25, 25] total 80 [2024-11-23 23:04:24,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440905125] [2024-11-23 23:04:24,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:25,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-11-23 23:04:25,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:25,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-11-23 23:04:25,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=635, Invalid=5685, Unknown=0, NotChecked=0, Total=6320 [2024-11-23 23:04:25,070 INFO L87 Difference]: Start difference. First operand has 3159 states, 2454 states have (on average 1.5289323553382232) internal successors, (3752), 2455 states have internal predecessors, (3752), 702 states have call successors, (702), 1 states have call predecessors, (702), 1 states have return successors, (702), 702 states have call predecessors, (702), 702 states have call successors, (702) Second operand has 80 states, 52 states have (on average 61.80769230769231) internal successors, (3214), 58 states have internal predecessors, (3214), 74 states have call successors, (2014), 2 states have call predecessors, (2014), 3 states have return successors, (2016), 68 states have call predecessors, (2016), 74 states have call successors, (2016) [2024-11-23 23:12:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:12:15,683 INFO L93 Difference]: Finished difference Result 136290 states and 238858 transitions. [2024-11-23 23:12:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 429 states. [2024-11-23 23:12:15,690 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 52 states have (on average 61.80769230769231) internal successors, (3214), 58 states have internal predecessors, (3214), 74 states have call successors, (2014), 2 states have call predecessors, (2014), 3 states have return successors, (2016), 68 states have call predecessors, (2016), 74 states have call successors, (2016) Word has length 4663 [2024-11-23 23:12:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:12:16,652 INFO L225 Difference]: With dead ends: 136290 [2024-11-23 23:12:16,652 INFO L226 Difference]: Without dead ends: 133134 [2024-11-23 23:12:16,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9824 GetRequests, 9324 SyntacticMatches, 7 SemanticMatches, 493 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88081 ImplicationChecksByTransitivity, 132.6s TimeCoverageRelationStatistics Valid=51365, Invalid=193165, Unknown=0, NotChecked=0, Total=244530 [2024-11-23 23:12:16,796 INFO L435 NwaCegarLoop]: 21235 mSDtfsCounter, 301766 mSDsluCounter, 328943 mSDsCounter, 0 mSdLazyCounter, 63669 mSolverCounterSat, 25574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302047 SdHoareTripleChecker+Valid, 350178 SdHoareTripleChecker+Invalid, 89243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.8s SdHoareTripleChecker+Time, 25574 IncrementalHoareTripleChecker+Valid, 63669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:12:16,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302047 Valid, 350178 Invalid, 89243 Unknown, 0 Unchecked, 1.8s Time], IncrementalHoareTripleChecker [25574 Valid, 63669 Invalid, 0 Unknown, 0 Unchecked, 117.7s Time] [2024-11-23 23:12:16,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133134 states.