./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i --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_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/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_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/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_700e4caf-37b1-4f6c-83d8-65b5f0346266/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 df0c7185d85de980493f372c45f6e79a53504b65a527788b367bf4dfe0a67ca8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:51:10,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:51:10,529 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:51:10,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:51:10,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:51:10,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:51:10,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:51:10,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:51:10,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:51:10,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:51:10,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:51:10,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:51:10,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:51:10,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:51:10,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:51:10,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:51:10,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:51:10,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:51:10,582 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:51:10,582 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:10,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:51:10,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:10,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:51:10,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:51:10,584 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:51:10,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:51:10,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:51:10,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:51:10,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:51:10,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:51:10,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:51:10,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:51:10,585 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_700e4caf-37b1-4f6c-83d8-65b5f0346266/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 -> df0c7185d85de980493f372c45f6e79a53504b65a527788b367bf4dfe0a67ca8 [2024-11-23 22:51:10,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:51:10,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:51:10,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:51:10,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:51:10,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:51:10,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i [2024-11-23 22:51:13,919 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/data/596384b75/23c60856134744dd80cbf21e6173a5c7/FLAGc8287def4 [2024-11-23 22:51:14,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:51:14,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i [2024-11-23 22:51:14,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/data/596384b75/23c60856134744dd80cbf21e6173a5c7/FLAGc8287def4 [2024-11-23 22:51:14,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/data/596384b75/23c60856134744dd80cbf21e6173a5c7 [2024-11-23 22:51:14,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:51:14,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:51:14,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:14,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:51:14,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:51:14,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:14" (1/1) ... [2024-11-23 22:51:14,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1acf85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:14, skipping insertion in model container [2024-11-23 22:51:14,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:14" (1/1) ... [2024-11-23 22:51:14,480 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:51:15,371 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_700e4caf-37b1-4f6c-83d8-65b5f0346266/sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i[65245,65258] [2024-11-23 22:51:15,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:15,735 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:51:15,838 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_700e4caf-37b1-4f6c-83d8-65b5f0346266/sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i[65245,65258] [2024-11-23 22:51:15,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:16,285 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:51:16,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16 WrapperNode [2024-11-23 22:51:16,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:16,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:16,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:51:16,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:51:16,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,504 INFO L138 Inliner]: procedures = 620, calls = 2157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 2542 [2024-11-23 22:51:16,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:16,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:51:16,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:51:16,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:51:16,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,570 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-23 22:51:16,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,570 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,670 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:51:16,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:51:16,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:51:16,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:51:16,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (1/1) ... [2024-11-23 22:51:16,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:16,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:16,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:51:16,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700e4caf-37b1-4f6c-83d8-65b5f0346266/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:51:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-23 22:51:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 22:51:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-23 22:51:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-23 22:51:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-23 22:51:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:51:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:51:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:51:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 22:51:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 22:51:17,011 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:51:17,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:54:13,722 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-11-23 22:54:13,722 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:54:13,738 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:54:13,740 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-23 22:54:13,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:13 BoogieIcfgContainer [2024-11-23 22:54:13,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:54:13,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:54:13,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:54:13,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:54:13,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:51:14" (1/3) ... [2024-11-23 22:54:13,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e51c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:13, skipping insertion in model container [2024-11-23 22:54:13,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:16" (2/3) ... [2024-11-23 22:54:13,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e51c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:13, skipping insertion in model container [2024-11-23 22:54:13,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:13" (3/3) ... [2024-11-23 22:54:13,749 INFO L128 eAbstractionObserver]: Analyzing ICFG gcas_4_safe.c-amalgamation.i [2024-11-23 22:54:13,765 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:54:13,767 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcas_4_safe.c-amalgamation.i that has 1 procedures, 95 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2024-11-23 22:54:13,834 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:54:13,849 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;@4c61c194, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:54:13,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:54:13,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 93 states have (on average 1.5913978494623655) internal successors, (148), 94 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:54:13,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-23 22:54:13,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:13,862 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:13,863 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:13,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:13,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1368816128, now seen corresponding path program 1 times [2024-11-23 22:54:13,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:13,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758104583] [2024-11-23 22:54:13,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:13,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms