./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX --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 f2d013ffa4d7cd59307ce87b23dd696caa1ad1374742fbf879c50e37b4a890a2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:19:43,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:19:43,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:19:43,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:19:43,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:19:43,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:19:43,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:19:43,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:19:43,911 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:19:43,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:19:43,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:19:43,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:19:43,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:19:43,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:19:43,914 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:19:43,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:19:43,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:19:43,916 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:19:43,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:19:43,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:19:43,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:19:43,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:19:43,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:19:43,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:19:43,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:19:43,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:19:43,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:19:43,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:19:43,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:19:43,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:19:43,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:19:43,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:19:43,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:19:43,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:19:43,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:19:43,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:19:43,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:19:43,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:19:43,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:19:43,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:19:43,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:19:43,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:19:43,928 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2d013ffa4d7cd59307ce87b23dd696caa1ad1374742fbf879c50e37b4a890a2 [2024-11-08 16:19:44,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:19:44,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:19:44,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:19:44,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:19:44,284 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:19:44,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i Unable to find full path for "g++" [2024-11-08 16:19:46,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:19:46,572 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:19:46,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i [2024-11-08 16:19:46,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/data/66d13a72a/c4b9f6395d284d208218f21402b8a722/FLAG7de7f2d12 [2024-11-08 16:19:46,604 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/data/66d13a72a/c4b9f6395d284d208218f21402b8a722 [2024-11-08 16:19:46,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:19:46,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:19:46,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:19:46,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:19:46,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:19:46,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:19:46" (1/1) ... [2024-11-08 16:19:46,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34bf6b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:46, skipping insertion in model container [2024-11-08 16:19:46,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:19:46" (1/1) ... [2024-11-08 16:19:46,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:19:46,863 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_045c5a46-5c6e-41b2-9d91-5522e6707788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i[917,930] [2024-11-08 16:19:46,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:19:46,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:19:46,962 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_045c5a46-5c6e-41b2-9d91-5522e6707788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-89.i[917,930] [2024-11-08 16:19:47,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:19:47,033 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:19:47,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47 WrapperNode [2024-11-08 16:19:47,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:19:47,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:19:47,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:19:47,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:19:47,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,104 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 447 [2024-11-08 16:19:47,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:19:47,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:19:47,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:19:47,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:19:47,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,152 INFO L175 MemorySlicer]: Split 107 memory accesses to 6 slices as follows [2, 44, 29, 5, 13, 14]. 41 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 5, 3, 1, 1, 2]. The 15 writes are split as follows [0, 8, 3, 1, 1, 2]. [2024-11-08 16:19:47,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:19:47,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:19:47,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:19:47,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:19:47,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (1/1) ... [2024-11-08 16:19:47,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:19:47,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:19:47,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:19:47,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_045c5a46-5c6e-41b2-9d91-5522e6707788/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:19:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:19:47,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:19:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:19:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:19:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:19:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:19:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 16:19:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:19:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:19:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:19:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:19:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:19:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 16:19:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 16:19:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 16:19:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:19:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:19:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:19:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:19:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:19:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:19:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:19:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:19:47,475 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:19:47,478 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:19:48,230 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-08 16:19:48,230 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:19:48,245 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:19:48,246 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:19:48,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:19:48 BoogieIcfgContainer [2024-11-08 16:19:48,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:19:48,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:19:48,250 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:19:48,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:19:48,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:19:46" (1/3) ... [2024-11-08 16:19:48,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de32aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:19:48, skipping insertion in model container [2024-11-08 16:19:48,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:19:47" (2/3) ... [2024-11-08 16:19:48,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de32aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:19:48, skipping insertion in model container [2024-11-08 16:19:48,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:19:48" (3/3) ... [2024-11-08 16:19:48,259 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-89.i [2024-11-08 16:19:48,279 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:19:48,279 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:19:48,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:19:48,351 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;@219778c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:19:48,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:19:48,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 16:19:48,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 16:19:48,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:19:48,372 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:19:48,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:19:48,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:19:48,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1918515253, now seen corresponding path program 1 times [2024-11-08 16:19:48,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:19:48,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659588858] [2024-11-08 16:19:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:19:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:19:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:19:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:19:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:19:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:19:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:19:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:19:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:19:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:19:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:19:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:19:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:19:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:19:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:19:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:48,934 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-08 16:19:48,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:19:48,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659588858] [2024-11-08 16:19:48,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659588858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:19:48,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:19:48,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:19:48,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840506977] [2024-11-08 16:19:48,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:19:48,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:19:48,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:19:48,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:19:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:19:48,983 INFO L87 Difference]: Start difference. First operand has 102 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:19:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:19:49,016 INFO L93 Difference]: Finished difference Result 197 states and 307 transitions. [2024-11-08 16:19:49,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:19:49,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-08 16:19:49,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:19:49,028 INFO L225 Difference]: With dead ends: 197 [2024-11-08 16:19:49,028 INFO L226 Difference]: Without dead ends: 98 [2024-11-08 16:19:49,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:19:49,036 INFO L432 NwaCegarLoop]: 141 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, 141 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 [2024-11-08 16:19:49,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:19:49,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-08 16:19:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-08 16:19:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 16:19:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2024-11-08 16:19:49,123 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 109 [2024-11-08 16:19:49,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:19:49,124 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2024-11-08 16:19:49,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:19:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2024-11-08 16:19:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 16:19:49,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:19:49,131 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:19:49,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:19:49,132 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:19:49,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:19:49,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1766638863, now seen corresponding path program 1 times [2024-11-08 16:19:49,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:19:49,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765878620] [2024-11-08 16:19:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:19:49,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:19:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:19:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:19:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:19:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:19:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:19:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:19:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:19:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:19:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:19:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:19:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:19:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:19:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:19:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-08 16:19:49,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:19:49,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765878620] [2024-11-08 16:19:49,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765878620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:19:49,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:19:49,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:19:49,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206242316] [2024-11-08 16:19:49,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:19:49,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:19:49,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:19:49,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:19:49,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:19:49,681 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 16:19:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:19:49,757 INFO L93 Difference]: Finished difference Result 196 states and 283 transitions. [2024-11-08 16:19:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:19:49,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-08 16:19:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:19:49,759 INFO L225 Difference]: With dead ends: 196 [2024-11-08 16:19:49,759 INFO L226 Difference]: Without dead ends: 101 [2024-11-08 16:19:49,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:19:49,764 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:19:49,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 403 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:19:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-08 16:19:49,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-11-08 16:19:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 16:19:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2024-11-08 16:19:49,789 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 109 [2024-11-08 16:19:49,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:19:49,790 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2024-11-08 16:19:49,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 16:19:49,791 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2024-11-08 16:19:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 16:19:49,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:19:49,795 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:19:49,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:19:49,795 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:19:49,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:19:49,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1086580493, now seen corresponding path program 1 times [2024-11-08 16:19:49,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:19:49,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347450638] [2024-11-08 16:19:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:19:49,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:19:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:19:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:19:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:19:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:19:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:19:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:19:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:19:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:19:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:19:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:19:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:19:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:19:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:19:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-08 16:19:50,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:19:50,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347450638] [2024-11-08 16:19:50,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347450638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:19:50,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:19:50,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:19:50,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187791596] [2024-11-08 16:19:50,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:19:50,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:19:50,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:19:50,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:19:50,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:19:50,117 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 16:19:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:19:50,171 INFO L93 Difference]: Finished difference Result 200 states and 287 transitions. [2024-11-08 16:19:50,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:19:50,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-08 16:19:50,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:19:50,194 INFO L225 Difference]: With dead ends: 200 [2024-11-08 16:19:50,194 INFO L226 Difference]: Without dead ends: 103 [2024-11-08 16:19:50,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:19:50,201 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:19:50,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 404 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:19:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-08 16:19:50,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2024-11-08 16:19:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 16:19:50,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2024-11-08 16:19:50,221 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 109 [2024-11-08 16:19:50,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:19:50,223 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2024-11-08 16:19:50,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 16:19:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2024-11-08 16:19:50,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 16:19:50,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:19:50,228 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:19:50,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:19:50,228 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:19:50,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:19:50,231 INFO L85 PathProgramCache]: Analyzing trace with hash 688426869, now seen corresponding path program 1 times [2024-11-08 16:19:50,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:19:50,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315857106] [2024-11-08 16:19:50,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:19:50,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:19:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:19:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:19:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:19:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:19:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:19:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:19:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:19:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:19:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:19:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:19:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:19:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:19:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:19:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:19:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-08 16:19:50,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:19:50,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315857106] [2024-11-08 16:19:50,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315857106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:19:50,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:19:50,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:19:50,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872760832] [2024-11-08 16:19:50,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:19:50,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:19:50,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:19:50,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:19:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:19:50,469 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 16:19:50,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:19:50,517 INFO L93 Difference]: Finished difference Result 204 states and 291 transitions. [2024-11-08 16:19:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:19:50,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-08 16:19:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:19:50,520 INFO L225 Difference]: With dead ends: 204 [2024-11-08 16:19:50,520 INFO L226 Difference]: Without dead ends: 105 [2024-11-08 16:19:50,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:19:50,522 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:19:50,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 406 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:19:50,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-08 16:19:50,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2024-11-08 16:19:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 16:19:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2024-11-08 16:19:50,532 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 147 transitions. Word has length 109 [2024-11-08 16:19:50,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:19:50,533 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 147 transitions. [2024-11-08 16:19:50,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-08 16:19:50,533 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 147 transitions. [2024-11-08 16:19:50,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 16:19:50,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:19:50,535 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:19:50,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:19:50,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:19:50,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:19:50,536 INFO L85 PathProgramCache]: Analyzing trace with hash 690273911, now seen corresponding path program 1 times [2024-11-08 16:19:50,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:19:50,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905722352] [2024-11-08 16:19:50,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:19:50,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:19:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat