./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:01:35,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:01:36,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:01:36,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:01:36,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:01:36,151 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:01:36,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:01:36,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:01:36,152 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:01:36,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:01:36,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:01:36,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:01:36,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:01:36,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:01:36,154 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:01:36,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:01:36,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:01:36,154 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:01:36,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:01:36,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:01:36,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:01:36,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:01:36,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:01:36,155 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:01:36,155 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:01:36,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:01:36,156 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:01:36,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:01:36,156 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:01:36,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:36,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:36,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:36,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:36,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:01:36,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:36,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:36,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:36,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:36,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:01:36,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:01:36,158 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:01:36,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:01:36,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:01:36,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:01:36,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:01:36,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:01:36,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:01:36,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:01:36,160 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_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-11-24 01:01:36,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:01:36,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:01:36,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:01:36,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:01:36,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:01:36,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-2.i [2024-11-24 01:01:40,092 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/data/07eb469fd/69fb6a4644174ab2906bf31b3e2bb27b/FLAG66b8e42d0 [2024-11-24 01:01:40,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:01:40,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-2.i [2024-11-24 01:01:40,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/data/07eb469fd/69fb6a4644174ab2906bf31b3e2bb27b/FLAG66b8e42d0 [2024-11-24 01:01:40,708 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/data/07eb469fd/69fb6a4644174ab2906bf31b3e2bb27b [2024-11-24 01:01:40,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:01:40,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:01:40,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:40,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:01:40,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:01:40,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:40" (1/1) ... [2024-11-24 01:01:40,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0a7f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:40, skipping insertion in model container [2024-11-24 01:01:40,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:40" (1/1) ... [2024-11-24 01:01:40,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:01:41,271 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_a9ad0f85-93bf-4584-b7e2-63953f822c90/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-2.i[33519,33532] [2024-11-24 01:01:41,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:41,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:01:41,525 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_a9ad0f85-93bf-4584-b7e2-63953f822c90/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test4-2.i[33519,33532] [2024-11-24 01:01:41,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:41,726 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:01:41,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41 WrapperNode [2024-11-24 01:01:41,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:41,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:41,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:01:41,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:01:41,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:41,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:41,870 INFO L138 Inliner]: procedures = 176, calls = 376, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1676 [2024-11-24 01:01:41,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:41,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:01:41,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:01:41,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:01:41,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:41,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:41,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,091 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-11-24 01:01:42,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,170 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:01:42,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:01:42,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:01:42,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:01:42,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (1/1) ... [2024-11-24 01:01:42,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:42,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:01:42,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:01:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:01:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:01:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:01:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:01:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-24 01:01:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-24 01:01:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-24 01:01:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-24 01:01:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:01:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:01:42,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:01:42,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:01:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:01:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:01:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:01:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:01:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:01:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:01:42,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:01:42,705 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:01:42,708 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:01:45,957 INFO L? ?]: Removed 403 outVars from TransFormulas that were not future-live. [2024-11-24 01:01:45,959 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:01:45,996 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:01:46,001 INFO L312 CfgBuilder]: Removed 39 assume(true) statements. [2024-11-24 01:01:46,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:46 BoogieIcfgContainer [2024-11-24 01:01:46,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:01:46,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:01:46,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:01:46,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:01:46,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:01:40" (1/3) ... [2024-11-24 01:01:46,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259a5d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:46, skipping insertion in model container [2024-11-24 01:01:46,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:41" (2/3) ... [2024-11-24 01:01:46,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259a5d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:46, skipping insertion in model container [2024-11-24 01:01:46,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:46" (3/3) ... [2024-11-24 01:01:46,025 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test4-2.i [2024-11-24 01:01:46,046 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:01:46,048 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_nondet_test4-2.i that has 3 procedures, 449 locations, 1 initial locations, 41 loop locations, and 1 error locations. [2024-11-24 01:01:46,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:01:46,161 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;@f33d05c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:01:46,161 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:01:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 445 states, 436 states have (on average 1.6055045871559632) internal successors, (700), 437 states have internal predecessors, (700), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 01:01:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 01:01:46,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:46,178 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:46,178 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:46,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:46,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1711494177, now seen corresponding path program 1 times [2024-11-24 01:01:46,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:46,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416868901] [2024-11-24 01:01:46,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:01:46,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416868901] [2024-11-24 01:01:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416868901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:46,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:46,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:01:46,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019664183] [2024-11-24 01:01:46,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:46,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:01:46,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:46,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:01:46,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:46,465 INFO L87 Difference]: Start difference. First operand has 445 states, 436 states have (on average 1.6055045871559632) internal successors, (700), 437 states have internal predecessors, (700), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:01:46,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:46,567 INFO L93 Difference]: Finished difference Result 887 states and 1420 transitions. [2024-11-24 01:01:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:01:46,569 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-24 01:01:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:46,582 INFO L225 Difference]: With dead ends: 887 [2024-11-24 01:01:46,582 INFO L226 Difference]: Without dead ends: 407 [2024-11-24 01:01:46,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:46,591 INFO L435 NwaCegarLoop]: 635 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, 635 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 [2024-11-24 01:01:46,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:46,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-24 01:01:46,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2024-11-24 01:01:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 399 states have (on average 1.431077694235589) internal successors, (571), 399 states have internal predecessors, (571), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 01:01:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 583 transitions. [2024-11-24 01:01:46,686 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 583 transitions. Word has length 11 [2024-11-24 01:01:46,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:46,688 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 583 transitions. [2024-11-24 01:01:46,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:01:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 583 transitions. [2024-11-24 01:01:46,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 01:01:46,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:46,689 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:46,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:01:46,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:46,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:46,693 INFO L85 PathProgramCache]: Analyzing trace with hash 641550296, now seen corresponding path program 1 times [2024-11-24 01:01:46,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:46,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392801623] [2024-11-24 01:01:46,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:46,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:01:46,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:46,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392801623] [2024-11-24 01:01:46,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392801623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:46,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:46,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:01:46,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170636235] [2024-11-24 01:01:46,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:46,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:01:46,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:46,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:01:46,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:01:46,944 INFO L87 Difference]: Start difference. First operand 407 states and 583 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:01:47,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:47,826 INFO L93 Difference]: Finished difference Result 1138 states and 1645 transitions. [2024-11-24 01:01:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:01:47,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-24 01:01:47,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:47,833 INFO L225 Difference]: With dead ends: 1138 [2024-11-24 01:01:47,834 INFO L226 Difference]: Without dead ends: 732 [2024-11-24 01:01:47,836 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 [2024-11-24 01:01:47,837 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 471 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:47,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1672 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:01:47,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-24 01:01:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2024-11-24 01:01:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 721 states have (on average 1.4466019417475728) internal successors, (1043), 721 states have internal predecessors, (1043), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:01:47,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1061 transitions. [2024-11-24 01:01:47,904 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1061 transitions. Word has length 11 [2024-11-24 01:01:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:47,905 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1061 transitions. [2024-11-24 01:01:47,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:01:47,905 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1061 transitions. [2024-11-24 01:01:47,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-24 01:01:47,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:47,912 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:47,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:01:47,913 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:47,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:47,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1068347775, now seen corresponding path program 1 times [2024-11-24 01:01:47,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:47,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900468540] [2024-11-24 01:01:47,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:47,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:01:49,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:49,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900468540] [2024-11-24 01:01:49,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900468540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:49,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:49,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:01:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763921072] [2024-11-24 01:01:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:49,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:01:49,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:49,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:01:49,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:01:49,106 INFO L87 Difference]: Start difference. First operand 732 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:49,294 INFO L93 Difference]: Finished difference Result 1408 states and 2037 transitions. [2024-11-24 01:01:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:01:49,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 173 [2024-11-24 01:01:49,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:49,303 INFO L225 Difference]: With dead ends: 1408 [2024-11-24 01:01:49,303 INFO L226 Difference]: Without dead ends: 738 [2024-11-24 01:01:49,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:49,305 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 106 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:49,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1571 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:01:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-24 01:01:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 732. [2024-11-24 01:01:49,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 721 states have (on average 1.4271844660194175) internal successors, (1029), 721 states have internal predecessors, (1029), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:01:49,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1047 transitions. [2024-11-24 01:01:49,368 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1047 transitions. Word has length 173 [2024-11-24 01:01:49,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:49,369 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1047 transitions. [2024-11-24 01:01:49,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:49,369 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1047 transitions. [2024-11-24 01:01:49,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-24 01:01:49,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:49,377 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:49,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:01:49,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:49,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash -380350963, now seen corresponding path program 1 times [2024-11-24 01:01:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:49,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112822484] [2024-11-24 01:01:49,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:49,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 01:01:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112822484] [2024-11-24 01:01:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112822484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:49,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:49,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:01:49,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413529239] [2024-11-24 01:01:49,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:49,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:01:49,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:49,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:01:49,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:01:49,941 INFO L87 Difference]: Start difference. First operand 732 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:50,030 INFO L93 Difference]: Finished difference Result 1318 states and 1886 transitions. [2024-11-24 01:01:50,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:01:50,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 173 [2024-11-24 01:01:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:50,041 INFO L225 Difference]: With dead ends: 1318 [2024-11-24 01:01:50,042 INFO L226 Difference]: Without dead ends: 730 [2024-11-24 01:01:50,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:01:50,044 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 135 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:50,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1142 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-24 01:01:50,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2024-11-24 01:01:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 719 states have (on average 1.426981919332406) internal successors, (1026), 719 states have internal predecessors, (1026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:01:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1044 transitions. [2024-11-24 01:01:50,095 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1044 transitions. Word has length 173 [2024-11-24 01:01:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:50,098 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 1044 transitions. [2024-11-24 01:01:50,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 01:01:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1044 transitions. [2024-11-24 01:01:50,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-24 01:01:50,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:50,105 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:50,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:01:50,105 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:50,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1670011040, now seen corresponding path program 1 times [2024-11-24 01:01:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:50,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905054039] [2024-11-24 01:01:50,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:50,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:01:50,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:50,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905054039] [2024-11-24 01:01:50,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905054039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:50,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:50,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:01:50,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228793455] [2024-11-24 01:01:50,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:50,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:01:50,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:50,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:01:50,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:01:50,846 INFO L87 Difference]: Start difference. First operand 730 states and 1044 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:01:50,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:50,994 INFO L93 Difference]: Finished difference Result 1213 states and 1733 transitions. [2024-11-24 01:01:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:01:50,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 188 [2024-11-24 01:01:50,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:51,001 INFO L225 Difference]: With dead ends: 1213 [2024-11-24 01:01:51,001 INFO L226 Difference]: Without dead ends: 736 [2024-11-24 01:01:51,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:01:51,008 INFO L435 NwaCegarLoop]: 548 mSDtfsCounter, 106 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:01:51,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1550 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:01:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-24 01:01:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 730. [2024-11-24 01:01:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 719 states have (on average 1.4075104311543811) internal successors, (1012), 719 states have internal predecessors, (1012), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:01:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1030 transitions. [2024-11-24 01:01:51,055 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1030 transitions. Word has length 188 [2024-11-24 01:01:51,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:51,057 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 1030 transitions. [2024-11-24 01:01:51,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:01:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1030 transitions. [2024-11-24 01:01:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-24 01:01:51,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:51,064 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:51,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:01:51,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:51,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:51,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1482927148, now seen corresponding path program 1 times [2024-11-24 01:01:51,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:51,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855224169] [2024-11-24 01:01:51,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:51,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:01:53,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:53,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855224169] [2024-11-24 01:01:53,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855224169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:01:53,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122832864] [2024-11-24 01:01:53,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:53,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:01:53,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:53,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:01:53,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:01:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:54,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-24 01:01:54,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:01:54,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 01:01:54,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-24 01:01:56,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-24 01:01:57,260 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:01:57,261 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:01:57,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122832864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:57,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:01:57,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2024-11-24 01:01:57,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823518253] [2024-11-24 01:01:57,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:57,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:01:57,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:57,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:01:57,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:01:57,266 INFO L87 Difference]: Start difference. First operand 730 states and 1030 transitions. Second operand has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:02:03,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:03,708 INFO L93 Difference]: Finished difference Result 1680 states and 2356 transitions. [2024-11-24 01:02:03,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:02:03,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 188 [2024-11-24 01:02:03,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:03,716 INFO L225 Difference]: With dead ends: 1680 [2024-11-24 01:02:03,716 INFO L226 Difference]: Without dead ends: 1038 [2024-11-24 01:02:03,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:02:03,718 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 1597 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:03,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 3197 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-24 01:02:03,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-11-24 01:02:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 756. [2024-11-24 01:02:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 745 states have (on average 1.4) internal successors, (1043), 745 states have internal predecessors, (1043), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:02:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1061 transitions. [2024-11-24 01:02:03,766 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1061 transitions. Word has length 188 [2024-11-24 01:02:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:03,766 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 1061 transitions. [2024-11-24 01:02:03,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:02:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1061 transitions. [2024-11-24 01:02:03,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-24 01:02:03,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:03,772 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:03,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:02:03,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-24 01:02:03,976 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:03,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:03,977 INFO L85 PathProgramCache]: Analyzing trace with hash 893892100, now seen corresponding path program 1 times [2024-11-24 01:02:03,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:03,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872775614] [2024-11-24 01:02:03,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:03,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:02:05,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872775614] [2024-11-24 01:02:05,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872775614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925037304] [2024-11-24 01:02:05,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:05,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:05,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:05,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:02:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:06,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:02:06,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:02:06,328 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:02:06,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925037304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:06,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:02:06,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:02:06,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387435058] [2024-11-24 01:02:06,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:06,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:02:06,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:06,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:02:06,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:02:06,331 INFO L87 Difference]: Start difference. First operand 756 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:02:06,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:06,708 INFO L93 Difference]: Finished difference Result 1444 states and 2030 transitions. [2024-11-24 01:02:06,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:02:06,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 189 [2024-11-24 01:02:06,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:06,713 INFO L225 Difference]: With dead ends: 1444 [2024-11-24 01:02:06,714 INFO L226 Difference]: Without dead ends: 802 [2024-11-24 01:02:06,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:02:06,716 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 18 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:06,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1490 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:02:06,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-24 01:02:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 784. [2024-11-24 01:02:06,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 773 states have (on average 1.3932729624838291) internal successors, (1077), 773 states have internal predecessors, (1077), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:02:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1095 transitions. [2024-11-24 01:02:06,755 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1095 transitions. Word has length 189 [2024-11-24 01:02:06,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:06,755 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1095 transitions. [2024-11-24 01:02:06,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:02:06,756 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1095 transitions. [2024-11-24 01:02:06,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 01:02:06,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:06,759 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:06,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:02:06,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:06,963 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:06,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:06,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1952134439, now seen corresponding path program 1 times [2024-11-24 01:02:06,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:06,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240188716] [2024-11-24 01:02:06,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:06,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:07,831 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:02:07,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:07,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240188716] [2024-11-24 01:02:07,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240188716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:07,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:07,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:02:07,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496869916] [2024-11-24 01:02:07,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:07,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:02:07,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:07,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:02:07,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:02:07,834 INFO L87 Difference]: Start difference. First operand 784 states and 1095 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:02:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:08,568 INFO L93 Difference]: Finished difference Result 1464 states and 2050 transitions. [2024-11-24 01:02:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:02:08,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190 [2024-11-24 01:02:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:08,575 INFO L225 Difference]: With dead ends: 1464 [2024-11-24 01:02:08,576 INFO L226 Difference]: Without dead ends: 798 [2024-11-24 01:02:08,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:02:08,579 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 9 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:08,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1857 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:02:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-24 01:02:08,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 792. [2024-11-24 01:02:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 781 states have (on average 1.3918053777208708) internal successors, (1087), 781 states have internal predecessors, (1087), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:02:08,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1105 transitions. [2024-11-24 01:02:08,617 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1105 transitions. Word has length 190 [2024-11-24 01:02:08,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:08,618 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1105 transitions. [2024-11-24 01:02:08,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:02:08,618 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1105 transitions. [2024-11-24 01:02:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 01:02:08,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:08,622 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:08,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:02:08,622 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:08,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:08,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2092431449, now seen corresponding path program 1 times [2024-11-24 01:02:08,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:08,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606686040] [2024-11-24 01:02:08,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:08,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:02:10,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606686040] [2024-11-24 01:02:10,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606686040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155650793] [2024-11-24 01:02:10,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:10,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:10,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:10,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:10,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:02:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:11,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:02:11,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:02:11,359 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:02:11,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155650793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:11,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:02:11,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2024-11-24 01:02:11,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367165193] [2024-11-24 01:02:11,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:11,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:02:11,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:11,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:02:11,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:02:11,362 INFO L87 Difference]: Start difference. First operand 792 states and 1105 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:02:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:11,507 INFO L93 Difference]: Finished difference Result 1482 states and 2074 transitions. [2024-11-24 01:02:11,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:02:11,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 191 [2024-11-24 01:02:11,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:11,516 INFO L225 Difference]: With dead ends: 1482 [2024-11-24 01:02:11,516 INFO L226 Difference]: Without dead ends: 859 [2024-11-24 01:02:11,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:02:11,520 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 532 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:11,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 2370 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:02:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-24 01:02:11,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 795. [2024-11-24 01:02:11,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 783 states have (on average 1.392081736909323) internal successors, (1090), 784 states have internal predecessors, (1090), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-24 01:02:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1111 transitions. [2024-11-24 01:02:11,575 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1111 transitions. Word has length 191 [2024-11-24 01:02:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:11,575 INFO L471 AbstractCegarLoop]: Abstraction has 795 states and 1111 transitions. [2024-11-24 01:02:11,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:02:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1111 transitions. [2024-11-24 01:02:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-24 01:02:11,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:11,579 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:11,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:02:11,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:11,780 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:11,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1357863701, now seen corresponding path program 1 times [2024-11-24 01:02:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322079295] [2024-11-24 01:02:11,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:11,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:13,879 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 01:02:13,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:13,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322079295] [2024-11-24 01:02:13,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322079295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:13,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950561939] [2024-11-24 01:02:13,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:13,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:13,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:13,882 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:13,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ad0f85-93bf-4584-b7e2-63953f822c90/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:02:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:15,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 153 conjuncts are in the unsatisfiable core [2024-11-24 01:02:15,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:15,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 01:02:15,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-24 01:02:16,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-11-24 01:02:16,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-11-24 01:02:16,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:02:16,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 31 [2024-11-24 01:02:16,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 01:02:16,573 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-24 01:02:16,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-11-24 01:02:16,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 01:02:16,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-24 01:02:16,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-24 01:02:16,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-24 01:02:17,047 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 01:02:17,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 57 [2024-11-24 01:02:17,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2024-11-24 01:02:17,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-24 01:02:38,135 INFO L224 Elim1Store]: Index analysis took 1979 ms