./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.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_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/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_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/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_66102ba1-7e88-41f1-8b2e-e65898cef1ab/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 81c7729345d5d6e6cfdedd64c331a4f8f6005773af2c566c0c24cc964b2ec390 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:59:37,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:59:37,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:59:37,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:59:37,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:59:37,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:59:37,324 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:59:37,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:59:37,325 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:59:37,325 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:59:37,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:59:37,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:59:37,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:59:37,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:59:37,327 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:59:37,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:59:37,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:59:37,328 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:59:37,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:59:37,330 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:59:37,330 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:59:37,330 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:59:37,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:37,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:37,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:37,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:37,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:37,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:59:37,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:59:37,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:59:37,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:59:37,332 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_66102ba1-7e88-41f1-8b2e-e65898cef1ab/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 -> 81c7729345d5d6e6cfdedd64c331a4f8f6005773af2c566c0c24cc964b2ec390 [2024-11-28 02:59:37,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:59:37,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:59:37,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:59:37,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:59:37,715 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:59:37,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i [2024-11-28 02:59:41,160 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/data/796e6f220/1f26b1592cb34077a32adce3cd73b958/FLAGa780c2a40 [2024-11-28 02:59:41,601 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:59:41,602 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i [2024-11-28 02:59:41,618 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/data/796e6f220/1f26b1592cb34077a32adce3cd73b958/FLAGa780c2a40 [2024-11-28 02:59:41,640 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/data/796e6f220/1f26b1592cb34077a32adce3cd73b958 [2024-11-28 02:59:41,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:59:41,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:59:41,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:41,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:59:41,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:59:41,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:41" (1/1) ... [2024-11-28 02:59:41,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b6cbec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:41, skipping insertion in model container [2024-11-28 02:59:41,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:41" (1/1) ... [2024-11-28 02:59:41,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:59:41,904 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_66102ba1-7e88-41f1-8b2e-e65898cef1ab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i[916,929] [2024-11-28 02:59:42,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:42,050 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:59:42,065 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_66102ba1-7e88-41f1-8b2e-e65898cef1ab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-19.i[916,929] [2024-11-28 02:59:42,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:59:42,163 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:59:42,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42 WrapperNode [2024-11-28 02:59:42,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:59:42,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:42,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:59:42,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:59:42,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,266 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 467 [2024-11-28 02:59:42,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:59:42,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:59:42,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:59:42,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:59:42,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,313 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 8, 43, 27, 26, 18]. 35 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 3, 4, 2, 2]. The 15 writes are split as follows [0, 1, 4, 6, 2, 2]. [2024-11-28 02:59:42,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,339 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:59:42,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:59:42,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:59:42,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:59:42,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (1/1) ... [2024-11-28 02:59:42,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:59:42,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:42,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:59:42,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:59:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:59:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:59:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:59:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:59:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:59:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:59:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:59:42,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:59:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:59:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:59:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:59:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:59:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:59:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:59:42,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:59:42,660 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:59:42,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:59:43,376 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-11-28 02:59:43,376 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:59:43,392 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:59:43,393 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:59:43,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:43 BoogieIcfgContainer [2024-11-28 02:59:43,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:59:43,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:59:43,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:59:43,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:59:43,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:41" (1/3) ... [2024-11-28 02:59:43,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430d5aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:43, skipping insertion in model container [2024-11-28 02:59:43,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:42" (2/3) ... [2024-11-28 02:59:43,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430d5aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:43, skipping insertion in model container [2024-11-28 02:59:43,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:43" (3/3) ... [2024-11-28 02:59:43,407 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-19.i [2024-11-28 02:59:43,427 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:59:43,429 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-19.i that has 2 procedures, 102 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:59:43,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:59:43,564 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;@683fec06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:59:43,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:59:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:59:43,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:59:43,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:43,591 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:43,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:43,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:43,602 INFO L85 PathProgramCache]: Analyzing trace with hash 864698559, now seen corresponding path program 1 times [2024-11-28 02:59:43,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:43,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153408554] [2024-11-28 02:59:43,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:43,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 02:59:44,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:44,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153408554] [2024-11-28 02:59:44,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153408554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:44,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086854741] [2024-11-28 02:59:44,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:44,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:44,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:44,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:44,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:59:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:44,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:59:44,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:44,497 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 02:59:44,497 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:59:44,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086854741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:44,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:59:44,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:59:44,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359879009] [2024-11-28 02:59:44,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:44,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:59:44,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:44,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:59:44,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:59:44,542 INFO L87 Difference]: Start difference. First operand has 102 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:59:44,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:44,593 INFO L93 Difference]: Finished difference Result 197 states and 307 transitions. [2024-11-28 02:59:44,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:59:44,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2024-11-28 02:59:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:44,604 INFO L225 Difference]: With dead ends: 197 [2024-11-28 02:59:44,604 INFO L226 Difference]: Without dead ends: 98 [2024-11-28 02:59:44,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:59:44,616 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:44,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:59:44,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-28 02:59:44,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-28 02:59:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:59:44,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2024-11-28 02:59:44,694 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 132 [2024-11-28 02:59:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:44,696 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2024-11-28 02:59:44,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 02:59:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2024-11-28 02:59:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:59:44,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:44,700 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:44,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:59:44,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66102ba1-7e88-41f1-8b2e-e65898cef1ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:59:44,902 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:44,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:44,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1949528607, now seen corresponding path program 1 times [2024-11-28 02:59:44,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:44,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164557288] [2024-11-28 02:59:44,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:44,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:45,591 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 02:59:45,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:45,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164557288] [2024-11-28 02:59:45,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164557288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:45,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:45,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:59:45,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78301833] [2024-11-28 02:59:45,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:45,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:45,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:45,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:45,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:45,595 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:59:45,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:45,659 INFO L93 Difference]: Finished difference Result 196 states and 279 transitions. [2024-11-28 02:59:45,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:45,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-28 02:59:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:45,663 INFO L225 Difference]: With dead ends: 196 [2024-11-28 02:59:45,663 INFO L226 Difference]: Without dead ends: 101 [2024-11-28 02:59:45,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:45,665 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:45,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 399 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:59:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-28 02:59:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-11-28 02:59:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:59:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 141 transitions. [2024-11-28 02:59:45,692 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 141 transitions. Word has length 132 [2024-11-28 02:59:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:45,695 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 141 transitions. [2024-11-28 02:59:45,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 02:59:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2024-11-28 02:59:45,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 02:59:45,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:45,701 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:45,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:59:45,701 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:45,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:45,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1947681565, now seen corresponding path program 1 times [2024-11-28 02:59:45,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:45,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460476301] [2024-11-28 02:59:45,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:45,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat