./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/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_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB --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-d790fec [2024-11-28 05:24:56,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:24:56,990 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:24:56,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:24:56,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:24:57,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:24:57,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:24:57,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:24:57,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:24:57,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:24:57,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:24:57,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:24:57,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:24:57,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:24:57,040 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:24:57,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:24:57,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:24:57,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:24:57,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:24:57,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:24:57,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:24:57,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:24:57,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:24:57,042 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:24:57,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:24:57,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:24:57,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:24:57,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:24:57,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:24:57,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:24:57,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:24:57,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:24:57,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:24:57,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:24:57,044 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_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-28 05:24:57,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:24:57,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:24:57,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:24:57,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:24:57,408 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:24:57,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i [2024-11-28 05:25:00,360 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/data/e9db684fe/5bccd2d54d04438490a02bec6dd368cf/FLAGc0c5e00de [2024-11-28 05:25:00,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:25:00,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i [2024-11-28 05:25:00,895 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/data/e9db684fe/5bccd2d54d04438490a02bec6dd368cf/FLAGc0c5e00de [2024-11-28 05:25:00,919 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/data/e9db684fe/5bccd2d54d04438490a02bec6dd368cf [2024-11-28 05:25:00,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:25:00,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:25:00,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:25:00,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:25:00,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:25:00,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:25:00" (1/1) ... [2024-11-28 05:25:00,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d26a6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:00, skipping insertion in model container [2024-11-28 05:25:00,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:25:00" (1/1) ... [2024-11-28 05:25:01,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:25:01,747 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_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i[65245,65258] [2024-11-28 05:25:01,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:25:02,103 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:25:02,182 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_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/sv-benchmarks/c/neural-networks/gcas_4_safe.c-amalgamation.i[65245,65258] [2024-11-28 05:25:02,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:25:02,619 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:25:02,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02 WrapperNode [2024-11-28 05:25:02,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:25:02,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:25:02,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:25:02,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:25:02,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:02,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:02,848 INFO L138 Inliner]: procedures = 620, calls = 2157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 2542 [2024-11-28 05:25:02,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:25:02,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:25:02,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:25:02,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:25:02,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:02,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:02,901 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:02,910 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 05:25:02,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:02,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:03,013 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:03,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:03,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:03,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:03,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:03,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:25:03,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:25:03,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:25:03,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:25:03,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (1/1) ... [2024-11-28 05:25:03,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:25:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:25:03,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:25:03,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca912fb-d9f2-4c6b-ab3a-e7ec983e4019/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:25:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-28 05:25:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:25:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-28 05:25:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-28 05:25:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-28 05:25:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:25:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:25:03,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:25:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:25:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 05:25:03,424 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:25:03,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:27:46,706 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-11-28 05:27:46,707 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:27:46,724 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:27:46,724 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-28 05:27:46,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:46 BoogieIcfgContainer [2024-11-28 05:27:46,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:27:46,729 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:27:46,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:27:46,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:27:46,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:25:00" (1/3) ... [2024-11-28 05:27:46,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157666d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:27:46, skipping insertion in model container [2024-11-28 05:27:46,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:25:02" (2/3) ... [2024-11-28 05:27:46,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157666d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:27:46, skipping insertion in model container [2024-11-28 05:27:46,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:46" (3/3) ... [2024-11-28 05:27:46,742 INFO L128 eAbstractionObserver]: Analyzing ICFG gcas_4_safe.c-amalgamation.i [2024-11-28 05:27:46,758 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:27:46,760 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. [2024-11-28 05:27:46,819 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:27:46,832 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;@59242f93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:27:46,832 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:27:46,836 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) [2024-11-28 05:27:46,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 05:27:46,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:27:46,844 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] [2024-11-28 05:27:46,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:27:46,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:27:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1368816128, now seen corresponding path program 1 times [2024-11-28 05:27:46,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:27:46,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444086667] [2024-11-28 05:27:46,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:27:46,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms