./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/vdp_5_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_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/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_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/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_5831c507-0309-4ef9-942d-1922ec81a09a/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 2b45498278a8f542f4cd5ce4d94ff4dff71bddcb389dc6b12ae7628aeefb5935 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:37:07,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:37:07,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:37:07,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:37:07,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:37:07,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:37:07,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:37:07,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:37:07,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:37:07,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:37:07,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:37:07,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:37:07,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:37:07,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:37:07,262 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:37:07,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:37:07,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:37:07,263 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:37:07,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:37:07,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:37:07,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:37:07,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:37:07,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:37:07,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:37:07,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:37:07,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:37:07,264 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:37:07,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:37:07,264 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:37:07,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:37:07,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:37:07,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:37:07,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:37:07,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:37:07,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:37:07,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:37:07,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:37:07,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:37:07,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:37:07,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:37:07,266 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:37:07,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:37:07,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:37:07,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:37:07,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:37:07,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:37:07,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:37:07,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:37:07,267 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_5831c507-0309-4ef9-942d-1922ec81a09a/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 -> 2b45498278a8f542f4cd5ce4d94ff4dff71bddcb389dc6b12ae7628aeefb5935 [2024-11-23 18:37:07,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:37:07,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:37:07,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:37:07,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:37:07,570 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:37:07,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i [2024-11-23 18:37:10,498 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/data/d9dbcee39/3e7b0608f65d46b397020823fee15acc/FLAG955d19e0d [2024-11-23 18:37:10,998 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:37:10,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i [2024-11-23 18:37:11,034 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/data/d9dbcee39/3e7b0608f65d46b397020823fee15acc/FLAG955d19e0d [2024-11-23 18:37:11,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/data/d9dbcee39/3e7b0608f65d46b397020823fee15acc [2024-11-23 18:37:11,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:37:11,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:37:11,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:37:11,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:37:11,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:37:11,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:37:11" (1/1) ... [2024-11-23 18:37:11,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd9d3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:11, skipping insertion in model container [2024-11-23 18:37:11,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:37:11" (1/1) ... [2024-11-23 18:37:11,124 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:37:12,031 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_5831c507-0309-4ef9-942d-1922ec81a09a/sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i[63639,63652] [2024-11-23 18:37:12,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:37:12,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:37:12,402 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_5831c507-0309-4ef9-942d-1922ec81a09a/sv-benchmarks/c/neural-networks/vdp_5_safe.c-amalgamation.i[63639,63652] [2024-11-23 18:37:12,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:37:12,749 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:37:12,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12 WrapperNode [2024-11-23 18:37:12,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:37:12,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:37:12,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:37:12,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:37:12,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:12,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:12,917 INFO L138 Inliner]: procedures = 620, calls = 1412, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1674 [2024-11-23 18:37:12,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:37:12,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:37:12,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:37:12,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:37:12,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:12,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:12,956 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:12,970 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-23 18:37:12,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:12,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:13,058 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:13,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:13,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:13,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:13,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:13,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:37:13,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:37:13,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:37:13,118 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:37:13,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (1/1) ... [2024-11-23 18:37:13,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:37:13,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:37:13,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:37:13,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5831c507-0309-4ef9-942d-1922ec81a09a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:37:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-23 18:37:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:37:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-23 18:37:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-23 18:37:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-23 18:37:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:37:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:37:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:37:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:37:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 18:37:13,400 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:37:13,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:38:20,451 INFO L? ?]: Removed 128 outVars from TransFormulas that were not future-live. [2024-11-23 18:38:20,451 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:38:20,461 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:38:20,461 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-23 18:38:20,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:20 BoogieIcfgContainer [2024-11-23 18:38:20,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:38:20,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:38:20,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:38:20,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:38:20,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:37:11" (1/3) ... [2024-11-23 18:38:20,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c0bf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:20, skipping insertion in model container [2024-11-23 18:38:20,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:37:12" (2/3) ... [2024-11-23 18:38:20,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c0bf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:38:20, skipping insertion in model container [2024-11-23 18:38:20,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:20" (3/3) ... [2024-11-23 18:38:20,472 INFO L128 eAbstractionObserver]: Analyzing ICFG vdp_5_safe.c-amalgamation.i [2024-11-23 18:38:20,486 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:38:20,488 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG vdp_5_safe.c-amalgamation.i that has 1 procedures, 68 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2024-11-23 18:38:20,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:38:20,553 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;@5f0b3712, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:38:20,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:38:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 66 states have (on average 1.5454545454545454) internal successors, (102), 67 states have internal predecessors, (102), 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 18:38:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-23 18:38:20,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:20,565 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] [2024-11-23 18:38:20,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:20,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:20,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1632230064, now seen corresponding path program 1 times [2024-11-23 18:38:20,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:38:20,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387822160] [2024-11-23 18:38:20,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:20,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms