./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:56:19,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:56:19,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:56:19,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:56:19,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:56:19,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:56:19,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:56:19,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:56:19,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:56:19,915 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:56:19,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:56:19,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:56:19,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:56:19,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:56:19,916 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:56:19,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:56:19,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:56:19,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:56:19,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:56:19,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:56:19,917 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:56:19,917 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:56:19,918 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:56:19,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:56:19,919 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:56:19,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:56:19,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:56:19,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:56:19,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:56:19,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:56:19,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:56:19,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:56:19,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:56:19,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:56:19,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:56:19,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:56:19,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:56:19,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:56:19,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:56:19,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:56:19,922 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_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2024-11-28 03:56:20,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:56:20,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:56:20,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:56:20,201 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:56:20,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:56:20,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2024-11-28 03:56:23,243 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/ca6176ec3/14ca465d6c0248d2b23269da7592b324/FLAG2432fb0b0 [2024-11-28 03:56:23,562 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:56:23,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/sv-benchmarks/c/forester-heap/dll-01-2.i [2024-11-28 03:56:23,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/ca6176ec3/14ca465d6c0248d2b23269da7592b324/FLAG2432fb0b0 [2024-11-28 03:56:23,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/ca6176ec3/14ca465d6c0248d2b23269da7592b324 [2024-11-28 03:56:23,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:56:23,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:56:23,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:23,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:56:23,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:56:23,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:23" (1/1) ... [2024-11-28 03:56:23,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b082818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:23, skipping insertion in model container [2024-11-28 03:56:23,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:23" (1/1) ... [2024-11-28 03:56:23,632 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:56:24,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:24,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:56:24,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:24,130 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:56:24,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24 WrapperNode [2024-11-28 03:56:24,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:24,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:24,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:56:24,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:56:24,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,172 INFO L138 Inliner]: procedures = 119, calls = 58, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 217 [2024-11-28 03:56:24,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:24,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:56:24,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:56:24,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:56:24,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,189 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,214 INFO L175 MemorySlicer]: Split 35 memory accesses to 2 slices as follows [2, 33]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 14 writes are split as follows [0, 14]. [2024-11-28 03:56:24,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,224 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:56:24,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:56:24,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:56:24,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:56:24,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (1/1) ... [2024-11-28 03:56:24,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:56:24,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:24,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:56:24,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:56:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 03:56:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:56:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:56:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:56:24,451 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:56:24,453 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:56:25,185 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live. [2024-11-28 03:56:25,185 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:56:25,206 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:56:25,206 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-28 03:56:25,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:25 BoogieIcfgContainer [2024-11-28 03:56:25,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:56:25,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:56:25,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:56:25,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:56:25,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:56:23" (1/3) ... [2024-11-28 03:56:25,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139ff81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:56:25, skipping insertion in model container [2024-11-28 03:56:25,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:24" (2/3) ... [2024-11-28 03:56:25,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139ff81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:56:25, skipping insertion in model container [2024-11-28 03:56:25,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:25" (3/3) ... [2024-11-28 03:56:25,220 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2024-11-28 03:56:25,235 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:56:25,237 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-01-2.i that has 2 procedures, 210 locations, 1 initial locations, 17 loop locations, and 74 error locations. [2024-11-28 03:56:25,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:56:25,304 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=None, 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;@597db11f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:56:25,304 INFO L334 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2024-11-28 03:56:25,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 121 states have (on average 2.0578512396694215) internal successors, (249), 195 states have internal predecessors, (249), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:56:25,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 03:56:25,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:25,315 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 03:56:25,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:25,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:25,324 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2024-11-28 03:56:25,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:25,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507973497] [2024-11-28 03:56:25,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:25,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:25,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:25,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:25,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507973497] [2024-11-28 03:56:25,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507973497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:25,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:25,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:25,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344370374] [2024-11-28 03:56:25,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:25,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:25,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:25,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:25,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:25,568 INFO L87 Difference]: Start difference. First operand has 210 states, 121 states have (on average 2.0578512396694215) internal successors, (249), 195 states have internal predecessors, (249), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:25,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:25,852 INFO L93 Difference]: Finished difference Result 187 states and 210 transitions. [2024-11-28 03:56:25,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:25,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 03:56:25,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:25,863 INFO L225 Difference]: With dead ends: 187 [2024-11-28 03:56:25,863 INFO L226 Difference]: Without dead ends: 185 [2024-11-28 03:56:25,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:25,867 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 164 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:25,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 132 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:25,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-28 03:56:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-28 03:56:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 108 states have (on average 1.8055555555555556) internal successors, (195), 183 states have internal predecessors, (195), 13 states have call successors, (13), 1 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 208 transitions. [2024-11-28 03:56:25,919 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 208 transitions. Word has length 3 [2024-11-28 03:56:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:25,919 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 208 transitions. [2024-11-28 03:56:25,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 208 transitions. [2024-11-28 03:56:25,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 03:56:25,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:25,921 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 03:56:25,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:56:25,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:25,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:25,923 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2024-11-28 03:56:25,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:25,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869468642] [2024-11-28 03:56:25,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:25,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:26,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869468642] [2024-11-28 03:56:26,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869468642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:26,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:26,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:26,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86158087] [2024-11-28 03:56:26,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:26,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:26,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:26,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:26,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:26,019 INFO L87 Difference]: Start difference. First operand 185 states and 208 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:26,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:26,239 INFO L93 Difference]: Finished difference Result 204 states and 231 transitions. [2024-11-28 03:56:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:26,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 03:56:26,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:26,241 INFO L225 Difference]: With dead ends: 204 [2024-11-28 03:56:26,241 INFO L226 Difference]: Without dead ends: 204 [2024-11-28 03:56:26,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:26,242 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 163 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:26,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 155 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-28 03:56:26,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 194. [2024-11-28 03:56:26,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 125 states have (on average 1.72) internal successors, (215), 192 states have internal predecessors, (215), 13 states have call successors, (13), 1 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 228 transitions. [2024-11-28 03:56:26,262 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 228 transitions. Word has length 3 [2024-11-28 03:56:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:26,262 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 228 transitions. [2024-11-28 03:56:26,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 228 transitions. [2024-11-28 03:56:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 03:56:26,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:26,263 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:26,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:56:26,263 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:26,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1770869738, now seen corresponding path program 1 times [2024-11-28 03:56:26,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:26,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922325741] [2024-11-28 03:56:26,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:26,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:26,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:26,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922325741] [2024-11-28 03:56:26,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922325741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:26,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:26,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:26,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584025937] [2024-11-28 03:56:26,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:26,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:26,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:26,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:26,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:26,350 INFO L87 Difference]: Start difference. First operand 194 states and 228 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:26,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:26,419 INFO L93 Difference]: Finished difference Result 205 states and 231 transitions. [2024-11-28 03:56:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 03:56:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:26,422 INFO L225 Difference]: With dead ends: 205 [2024-11-28 03:56:26,422 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 03:56:26,422 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 [2024-11-28 03:56:26,423 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 165 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:26,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 219 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:56:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 03:56:26,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 193. [2024-11-28 03:56:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 125 states have (on average 1.704) internal successors, (213), 191 states have internal predecessors, (213), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 225 transitions. [2024-11-28 03:56:26,442 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 225 transitions. Word has length 8 [2024-11-28 03:56:26,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:26,443 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 225 transitions. [2024-11-28 03:56:26,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:26,443 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 225 transitions. [2024-11-28 03:56:26,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:56:26,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:26,443 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:26,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:56:26,444 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:26,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:26,444 INFO L85 PathProgramCache]: Analyzing trace with hash -957533477, now seen corresponding path program 1 times [2024-11-28 03:56:26,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:26,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941980850] [2024-11-28 03:56:26,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:26,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:26,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:26,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941980850] [2024-11-28 03:56:26,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941980850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:26,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:26,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:26,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820680743] [2024-11-28 03:56:26,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:26,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:26,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:26,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:26,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:26,800 INFO L87 Difference]: Start difference. First operand 193 states and 225 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:27,066 INFO L93 Difference]: Finished difference Result 192 states and 224 transitions. [2024-11-28 03:56:27,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:27,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2024-11-28 03:56:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:27,067 INFO L225 Difference]: With dead ends: 192 [2024-11-28 03:56:27,067 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 03:56:27,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:27,068 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 2 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:27,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 555 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 03:56:27,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-11-28 03:56:27,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 125 states have (on average 1.696) internal successors, (212), 190 states have internal predecessors, (212), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2024-11-28 03:56:27,075 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 12 [2024-11-28 03:56:27,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:27,076 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2024-11-28 03:56:27,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2024-11-28 03:56:27,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:56:27,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:27,076 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:27,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:56:27,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:27,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:27,077 INFO L85 PathProgramCache]: Analyzing trace with hash -957533476, now seen corresponding path program 1 times [2024-11-28 03:56:27,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:27,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921308980] [2024-11-28 03:56:27,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:27,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:27,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:27,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921308980] [2024-11-28 03:56:27,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921308980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:27,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:27,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:27,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312614023] [2024-11-28 03:56:27,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:27,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:27,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:27,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:27,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:27,420 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:27,681 INFO L93 Difference]: Finished difference Result 191 states and 223 transitions. [2024-11-28 03:56:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2024-11-28 03:56:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:27,682 INFO L225 Difference]: With dead ends: 191 [2024-11-28 03:56:27,683 INFO L226 Difference]: Without dead ends: 191 [2024-11-28 03:56:27,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:27,683 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 1 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:27,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 564 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:27,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-28 03:56:27,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-28 03:56:27,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 125 states have (on average 1.688) internal successors, (211), 189 states have internal predecessors, (211), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 223 transitions. [2024-11-28 03:56:27,695 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 223 transitions. Word has length 12 [2024-11-28 03:56:27,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:27,695 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 223 transitions. [2024-11-28 03:56:27,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 223 transitions. [2024-11-28 03:56:27,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 03:56:27,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:27,696 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:27,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:56:27,696 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:27,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1138781985, now seen corresponding path program 1 times [2024-11-28 03:56:27,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:27,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433369672] [2024-11-28 03:56:27,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:27,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:27,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:27,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:27,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433369672] [2024-11-28 03:56:27,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433369672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:27,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:27,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:27,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431662895] [2024-11-28 03:56:27,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:27,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:27,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:27,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:27,739 INFO L87 Difference]: Start difference. First operand 191 states and 223 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:27,759 INFO L93 Difference]: Finished difference Result 192 states and 224 transitions. [2024-11-28 03:56:27,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:27,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 03:56:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:27,760 INFO L225 Difference]: With dead ends: 192 [2024-11-28 03:56:27,760 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 03:56:27,760 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 [2024-11-28 03:56:27,761 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:27,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 03:56:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-11-28 03:56:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 126 states have (on average 1.6825396825396826) internal successors, (212), 190 states have internal predecessors, (212), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2024-11-28 03:56:27,774 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 16 [2024-11-28 03:56:27,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:27,774 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2024-11-28 03:56:27,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:27,774 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2024-11-28 03:56:27,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:56:27,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:27,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:27,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:56:27,775 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:27,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:27,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1292993571, now seen corresponding path program 1 times [2024-11-28 03:56:27,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:27,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29690921] [2024-11-28 03:56:27,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:27,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:28,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29690921] [2024-11-28 03:56:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29690921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:28,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:28,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:56:28,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034931251] [2024-11-28 03:56:28,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:28,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:56:28,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:28,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:56:28,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:28,113 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:28,636 INFO L93 Difference]: Finished difference Result 191 states and 223 transitions. [2024-11-28 03:56:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:56:28,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2024-11-28 03:56:28,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:28,638 INFO L225 Difference]: With dead ends: 191 [2024-11-28 03:56:28,638 INFO L226 Difference]: Without dead ends: 191 [2024-11-28 03:56:28,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:56:28,639 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 159 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:28,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 638 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:56:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-28 03:56:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-28 03:56:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.6746031746031746) internal successors, (211), 189 states have internal predecessors, (211), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 223 transitions. [2024-11-28 03:56:28,645 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 223 transitions. Word has length 15 [2024-11-28 03:56:28,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:28,645 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 223 transitions. [2024-11-28 03:56:28,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:28,646 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 223 transitions. [2024-11-28 03:56:28,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:56:28,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:28,646 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:28,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:56:28,647 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:28,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:28,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1292993572, now seen corresponding path program 1 times [2024-11-28 03:56:28,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:28,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639688821] [2024-11-28 03:56:28,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:28,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:29,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:29,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:29,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639688821] [2024-11-28 03:56:29,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639688821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:29,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:29,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:56:29,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590956418] [2024-11-28 03:56:29,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:29,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:56:29,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:29,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:56:29,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:29,056 INFO L87 Difference]: Start difference. First operand 191 states and 223 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:29,472 INFO L93 Difference]: Finished difference Result 190 states and 222 transitions. [2024-11-28 03:56:29,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:56:29,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2024-11-28 03:56:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:29,474 INFO L225 Difference]: With dead ends: 190 [2024-11-28 03:56:29,474 INFO L226 Difference]: Without dead ends: 190 [2024-11-28 03:56:29,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:56:29,475 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 158 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:29,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 417 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:56:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-28 03:56:29,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-28 03:56:29,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 126 states have (on average 1.6666666666666667) internal successors, (210), 188 states have internal predecessors, (210), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2024-11-28 03:56:29,483 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 15 [2024-11-28 03:56:29,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:29,483 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2024-11-28 03:56:29,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:29,484 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2024-11-28 03:56:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 03:56:29,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:29,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:29,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:56:29,484 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:29,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash 353481414, now seen corresponding path program 1 times [2024-11-28 03:56:29,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:29,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248807165] [2024-11-28 03:56:29,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:29,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:29,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:29,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248807165] [2024-11-28 03:56:29,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248807165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:29,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:29,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:56:29,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125289341] [2024-11-28 03:56:29,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:29,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:56:29,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:29,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:56:29,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:56:29,655 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:29,915 INFO L93 Difference]: Finished difference Result 271 states and 319 transitions. [2024-11-28 03:56:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:56:29,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-28 03:56:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:29,917 INFO L225 Difference]: With dead ends: 271 [2024-11-28 03:56:29,917 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 03:56:29,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:29,918 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 162 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:29,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 751 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:29,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 03:56:29,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 188. [2024-11-28 03:56:29,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 125 states have (on average 1.664) internal successors, (208), 186 states have internal predecessors, (208), 11 states have call successors, (11), 1 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 219 transitions. [2024-11-28 03:56:29,924 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 219 transitions. Word has length 18 [2024-11-28 03:56:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:29,924 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 219 transitions. [2024-11-28 03:56:29,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 219 transitions. [2024-11-28 03:56:29,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:56:29,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:29,926 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:29,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:56:29,927 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:29,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash 458267254, now seen corresponding path program 1 times [2024-11-28 03:56:29,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581140413] [2024-11-28 03:56:29,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:29,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:30,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:30,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581140413] [2024-11-28 03:56:30,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581140413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:30,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:30,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345674766] [2024-11-28 03:56:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:30,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:30,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:30,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:30,109 INFO L87 Difference]: Start difference. First operand 188 states and 219 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:30,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:30,304 INFO L93 Difference]: Finished difference Result 272 states and 319 transitions. [2024-11-28 03:56:30,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:30,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2024-11-28 03:56:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:30,305 INFO L225 Difference]: With dead ends: 272 [2024-11-28 03:56:30,306 INFO L226 Difference]: Without dead ends: 272 [2024-11-28 03:56:30,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:56:30,306 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 83 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:30,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 629 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:30,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-28 03:56:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 191. [2024-11-28 03:56:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 128 states have (on average 1.6484375) internal successors, (211), 189 states have internal predecessors, (211), 11 states have call successors, (11), 1 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 222 transitions. [2024-11-28 03:56:30,312 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 222 transitions. Word has length 19 [2024-11-28 03:56:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:30,312 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 222 transitions. [2024-11-28 03:56:30,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 222 transitions. [2024-11-28 03:56:30,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:56:30,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:30,312 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:30,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:56:30,313 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:30,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:30,313 INFO L85 PathProgramCache]: Analyzing trace with hash 255817905, now seen corresponding path program 1 times [2024-11-28 03:56:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:30,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158410879] [2024-11-28 03:56:30,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:30,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:30,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:30,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158410879] [2024-11-28 03:56:30,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158410879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:30,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:30,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:30,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288727561] [2024-11-28 03:56:30,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:30,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:30,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:30,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:30,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:30,403 INFO L87 Difference]: Start difference. First operand 191 states and 222 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:30,606 INFO L93 Difference]: Finished difference Result 182 states and 213 transitions. [2024-11-28 03:56:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:30,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2024-11-28 03:56:30,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:30,607 INFO L225 Difference]: With dead ends: 182 [2024-11-28 03:56:30,607 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 03:56:30,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:30,608 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 218 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:30,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 126 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:30,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 03:56:30,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-28 03:56:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 131 states have (on average 1.5419847328244274) internal successors, (202), 180 states have internal predecessors, (202), 11 states have call successors, (11), 1 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 213 transitions. [2024-11-28 03:56:30,613 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 213 transitions. Word has length 21 [2024-11-28 03:56:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:30,613 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 213 transitions. [2024-11-28 03:56:30,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 213 transitions. [2024-11-28 03:56:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:56:30,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:30,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:30,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:56:30,614 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:30,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:30,615 INFO L85 PathProgramCache]: Analyzing trace with hash 255817906, now seen corresponding path program 1 times [2024-11-28 03:56:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:30,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190493103] [2024-11-28 03:56:30,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:30,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:30,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:30,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190493103] [2024-11-28 03:56:30,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190493103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:30,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:30,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:30,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493921146] [2024-11-28 03:56:30,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:30,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:56:30,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:30,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:56:30,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:30,821 INFO L87 Difference]: Start difference. First operand 182 states and 213 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:31,183 INFO L93 Difference]: Finished difference Result 228 states and 260 transitions. [2024-11-28 03:56:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:31,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2024-11-28 03:56:31,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:31,184 INFO L225 Difference]: With dead ends: 228 [2024-11-28 03:56:31,184 INFO L226 Difference]: Without dead ends: 228 [2024-11-28 03:56:31,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:56:31,185 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 389 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:31,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 253 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:56:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-28 03:56:31,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 207. [2024-11-28 03:56:31,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 156 states have (on average 1.544871794871795) internal successors, (241), 205 states have internal predecessors, (241), 11 states have call successors, (11), 1 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2024-11-28 03:56:31,191 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 21 [2024-11-28 03:56:31,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:31,191 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2024-11-28 03:56:31,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2024-11-28 03:56:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 03:56:31,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:31,192 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:31,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:56:31,192 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:31,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:31,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1973383066, now seen corresponding path program 1 times [2024-11-28 03:56:31,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:31,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157576788] [2024-11-28 03:56:31,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:31,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:31,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:31,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157576788] [2024-11-28 03:56:31,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157576788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:31,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:31,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:31,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132680427] [2024-11-28 03:56:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:31,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:31,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:31,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:31,255 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:31,396 INFO L93 Difference]: Finished difference Result 229 states and 260 transitions. [2024-11-28 03:56:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:31,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-28 03:56:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:31,398 INFO L225 Difference]: With dead ends: 229 [2024-11-28 03:56:31,398 INFO L226 Difference]: Without dead ends: 229 [2024-11-28 03:56:31,398 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 [2024-11-28 03:56:31,399 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 217 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:31,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 290 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:56:31,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-28 03:56:31,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 206. [2024-11-28 03:56:31,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 156 states have (on average 1.5320512820512822) internal successors, (239), 204 states have internal predecessors, (239), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 249 transitions. [2024-11-28 03:56:31,406 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 249 transitions. Word has length 24 [2024-11-28 03:56:31,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:31,406 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 249 transitions. [2024-11-28 03:56:31,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,406 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 249 transitions. [2024-11-28 03:56:31,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 03:56:31,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:31,407 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:31,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:56:31,407 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:31,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:31,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1799308198, now seen corresponding path program 1 times [2024-11-28 03:56:31,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:31,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270134101] [2024-11-28 03:56:31,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:31,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:31,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270134101] [2024-11-28 03:56:31,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270134101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:31,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:31,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:31,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612603038] [2024-11-28 03:56:31,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:31,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:31,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:31,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:31,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:31,513 INFO L87 Difference]: Start difference. First operand 206 states and 249 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:31,723 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2024-11-28 03:56:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:31,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-28 03:56:31,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:31,725 INFO L225 Difference]: With dead ends: 205 [2024-11-28 03:56:31,725 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 03:56:31,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:31,726 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 4 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:31,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 485 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:31,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 03:56:31,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-28 03:56:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 156 states have (on average 1.5192307692307692) internal successors, (237), 203 states have internal predecessors, (237), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 247 transitions. [2024-11-28 03:56:31,737 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 247 transitions. Word has length 24 [2024-11-28 03:56:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:31,737 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 247 transitions. [2024-11-28 03:56:31,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 247 transitions. [2024-11-28 03:56:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 03:56:31,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:31,738 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:31,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:56:31,739 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:31,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1799308199, now seen corresponding path program 1 times [2024-11-28 03:56:31,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:31,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129251501] [2024-11-28 03:56:31,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:31,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:31,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129251501] [2024-11-28 03:56:31,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129251501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:31,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:31,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649826567] [2024-11-28 03:56:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:31,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:31,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:31,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:31,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:31,912 INFO L87 Difference]: Start difference. First operand 205 states and 247 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:32,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:32,140 INFO L93 Difference]: Finished difference Result 204 states and 245 transitions. [2024-11-28 03:56:32,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:32,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-28 03:56:32,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:32,141 INFO L225 Difference]: With dead ends: 204 [2024-11-28 03:56:32,141 INFO L226 Difference]: Without dead ends: 204 [2024-11-28 03:56:32,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:32,144 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:32,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 474 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:32,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-28 03:56:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-28 03:56:32,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 156 states have (on average 1.5064102564102564) internal successors, (235), 202 states have internal predecessors, (235), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:32,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 245 transitions. [2024-11-28 03:56:32,150 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 245 transitions. Word has length 24 [2024-11-28 03:56:32,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:32,151 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 245 transitions. [2024-11-28 03:56:32,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:32,151 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 245 transitions. [2024-11-28 03:56:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 03:56:32,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:32,151 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:32,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:56:32,152 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:32,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:32,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1832108969, now seen corresponding path program 1 times [2024-11-28 03:56:32,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:32,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586936069] [2024-11-28 03:56:32,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:32,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:32,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:32,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:32,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586936069] [2024-11-28 03:56:32,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586936069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:32,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:32,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:56:32,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793032479] [2024-11-28 03:56:32,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:32,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:56:32,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:32,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:56:32,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:32,503 INFO L87 Difference]: Start difference. First operand 204 states and 245 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:33,200 INFO L93 Difference]: Finished difference Result 195 states and 236 transitions. [2024-11-28 03:56:33,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:56:33,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2024-11-28 03:56:33,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:33,202 INFO L225 Difference]: With dead ends: 195 [2024-11-28 03:56:33,202 INFO L226 Difference]: Without dead ends: 195 [2024-11-28 03:56:33,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:56:33,203 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 241 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:33,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 507 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:56:33,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-28 03:56:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 185. [2024-11-28 03:56:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 147 states have (on average 1.4625850340136055) internal successors, (215), 183 states have internal predecessors, (215), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 225 transitions. [2024-11-28 03:56:33,209 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 225 transitions. Word has length 28 [2024-11-28 03:56:33,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:33,209 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 225 transitions. [2024-11-28 03:56:33,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 225 transitions. [2024-11-28 03:56:33,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 03:56:33,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:33,210 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:33,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:56:33,211 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:33,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:33,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1832108968, now seen corresponding path program 1 times [2024-11-28 03:56:33,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:33,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909833010] [2024-11-28 03:56:33,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:33,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:33,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909833010] [2024-11-28 03:56:33,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909833010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:33,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:33,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:56:33,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677836738] [2024-11-28 03:56:33,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:33,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:56:33,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:33,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:56:33,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:56:33,461 INFO L87 Difference]: Start difference. First operand 185 states and 225 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:33,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:33,983 INFO L93 Difference]: Finished difference Result 184 states and 224 transitions. [2024-11-28 03:56:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:56:33,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 28 [2024-11-28 03:56:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:33,985 INFO L225 Difference]: With dead ends: 184 [2024-11-28 03:56:33,985 INFO L226 Difference]: Without dead ends: 184 [2024-11-28 03:56:33,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:56:33,986 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 202 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:33,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 487 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:56:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-28 03:56:33,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-28 03:56:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 147 states have (on average 1.4557823129251701) internal successors, (214), 182 states have internal predecessors, (214), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 224 transitions. [2024-11-28 03:56:33,991 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 224 transitions. Word has length 28 [2024-11-28 03:56:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:33,991 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 224 transitions. [2024-11-28 03:56:33,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:33,991 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 224 transitions. [2024-11-28 03:56:33,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:56:33,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:33,993 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:33,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:56:33,993 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:33,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:33,993 INFO L85 PathProgramCache]: Analyzing trace with hash -164942589, now seen corresponding path program 1 times [2024-11-28 03:56:33,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:33,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261028543] [2024-11-28 03:56:33,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:33,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:34,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:34,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261028543] [2024-11-28 03:56:34,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261028543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:34,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:34,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:34,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821118823] [2024-11-28 03:56:34,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:34,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:34,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:34,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:34,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:34,034 INFO L87 Difference]: Start difference. First operand 184 states and 224 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:34,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:34,048 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2024-11-28 03:56:34,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:34,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-28 03:56:34,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:34,049 INFO L225 Difference]: With dead ends: 196 [2024-11-28 03:56:34,049 INFO L226 Difference]: Without dead ends: 196 [2024-11-28 03:56:34,049 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 [2024-11-28 03:56:34,050 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 7 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:34,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 309 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:34,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-28 03:56:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 190. [2024-11-28 03:56:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 153 states have (on average 1.4509803921568627) internal successors, (222), 188 states have internal predecessors, (222), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:34,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2024-11-28 03:56:34,055 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 31 [2024-11-28 03:56:34,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:34,055 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2024-11-28 03:56:34,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:34,055 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2024-11-28 03:56:34,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:56:34,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:34,056 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:34,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:56:34,057 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:34,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:34,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1628418508, now seen corresponding path program 1 times [2024-11-28 03:56:34,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:34,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416309853] [2024-11-28 03:56:34,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:34,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:34,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:34,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:34,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416309853] [2024-11-28 03:56:34,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416309853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:34,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:34,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:34,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070318489] [2024-11-28 03:56:34,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:34,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:56:34,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:34,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:56:34,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:34,186 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:34,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:34,375 INFO L93 Difference]: Finished difference Result 193 states and 234 transitions. [2024-11-28 03:56:34,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:34,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-28 03:56:34,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:34,376 INFO L225 Difference]: With dead ends: 193 [2024-11-28 03:56:34,376 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 03:56:34,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:34,377 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 240 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:34,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 242 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:34,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 03:56:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2024-11-28 03:56:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 153 states have (on average 1.4379084967320261) internal successors, (220), 186 states have internal predecessors, (220), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 228 transitions. [2024-11-28 03:56:34,381 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 228 transitions. Word has length 32 [2024-11-28 03:56:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:34,382 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 228 transitions. [2024-11-28 03:56:34,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 228 transitions. [2024-11-28 03:56:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:56:34,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:34,382 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:34,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:56:34,383 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:34,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash -169310624, now seen corresponding path program 1 times [2024-11-28 03:56:34,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:34,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673281320] [2024-11-28 03:56:34,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:34,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:34,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673281320] [2024-11-28 03:56:34,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673281320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:34,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:56:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290798946] [2024-11-28 03:56:34,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:34,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:56:34,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:34,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:56:34,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:34,562 INFO L87 Difference]: Start difference. First operand 188 states and 228 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:35,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:35,027 INFO L93 Difference]: Finished difference Result 288 states and 347 transitions. [2024-11-28 03:56:35,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:56:35,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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 31 [2024-11-28 03:56:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:35,028 INFO L225 Difference]: With dead ends: 288 [2024-11-28 03:56:35,028 INFO L226 Difference]: Without dead ends: 288 [2024-11-28 03:56:35,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:35,029 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 102 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:35,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 877 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:56:35,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-28 03:56:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 201. [2024-11-28 03:56:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 166 states have (on average 1.4096385542168675) internal successors, (234), 199 states have internal predecessors, (234), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 242 transitions. [2024-11-28 03:56:35,036 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 242 transitions. Word has length 31 [2024-11-28 03:56:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:35,036 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 242 transitions. [2024-11-28 03:56:35,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 242 transitions. [2024-11-28 03:56:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 03:56:35,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:35,037 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:56:35,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:56:35,037 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:35,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:35,038 INFO L85 PathProgramCache]: Analyzing trace with hash -442292435, now seen corresponding path program 1 times [2024-11-28 03:56:35,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:35,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987555663] [2024-11-28 03:56:35,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:35,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:35,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:35,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987555663] [2024-11-28 03:56:35,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987555663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:35,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090957726] [2024-11-28 03:56:35,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:35,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:35,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:35,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:35,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:56:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:35,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:56:35,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:35,540 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 [2024-11-28 03:56:35,549 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 [2024-11-28 03:56:35,587 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 19 treesize of output 18 [2024-11-28 03:56:35,601 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 23 treesize of output 11 [2024-11-28 03:56:35,682 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 19 treesize of output 18 [2024-11-28 03:56:35,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-11-28 03:56:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:36,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:36,807 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 10 treesize of output 8 [2024-11-28 03:56:36,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 12 [2024-11-28 03:56:36,826 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 10 treesize of output 8 [2024-11-28 03:56:36,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:36,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090957726] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:36,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:36,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 14 [2024-11-28 03:56:36,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823279825] [2024-11-28 03:56:36,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:36,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:56:36,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:36,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:56:36,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:56:36,854 INFO L87 Difference]: Start difference. First operand 201 states and 242 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:37,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:37,549 INFO L93 Difference]: Finished difference Result 327 states and 381 transitions. [2024-11-28 03:56:37,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:56:37,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 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 34 [2024-11-28 03:56:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:37,551 INFO L225 Difference]: With dead ends: 327 [2024-11-28 03:56:37,552 INFO L226 Difference]: Without dead ends: 327 [2024-11-28 03:56:37,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:56:37,553 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 578 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:37,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 850 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:56:37,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-28 03:56:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 230. [2024-11-28 03:56:37,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 195 states have (on average 1.4205128205128206) internal successors, (277), 228 states have internal predecessors, (277), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:37,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 285 transitions. [2024-11-28 03:56:37,560 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 285 transitions. Word has length 34 [2024-11-28 03:56:37,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:37,560 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 285 transitions. [2024-11-28 03:56:37,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:37,561 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 285 transitions. [2024-11-28 03:56:37,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 03:56:37,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:37,561 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:37,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:56:37,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:37,766 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:37,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:37,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2036333064, now seen corresponding path program 1 times [2024-11-28 03:56:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:37,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364036633] [2024-11-28 03:56:37,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:37,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:38,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:38,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364036633] [2024-11-28 03:56:38,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364036633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:38,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:38,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:56:38,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420690961] [2024-11-28 03:56:38,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:38,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:56:38,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:38,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:56:38,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:56:38,381 INFO L87 Difference]: Start difference. First operand 230 states and 285 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:39,382 INFO L93 Difference]: Finished difference Result 304 states and 365 transitions. [2024-11-28 03:56:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:56:39,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 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 36 [2024-11-28 03:56:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:39,384 INFO L225 Difference]: With dead ends: 304 [2024-11-28 03:56:39,384 INFO L226 Difference]: Without dead ends: 304 [2024-11-28 03:56:39,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:56:39,386 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 319 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:39,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 878 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:56:39,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-28 03:56:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 239. [2024-11-28 03:56:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 204 states have (on average 1.4313725490196079) internal successors, (292), 237 states have internal predecessors, (292), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 300 transitions. [2024-11-28 03:56:39,394 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 300 transitions. Word has length 36 [2024-11-28 03:56:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:39,394 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 300 transitions. [2024-11-28 03:56:39,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 300 transitions. [2024-11-28 03:56:39,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 03:56:39,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:39,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:39,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:56:39,395 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:39,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:39,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2036333063, now seen corresponding path program 1 times [2024-11-28 03:56:39,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:39,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160001080] [2024-11-28 03:56:39,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:39,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:39,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:39,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160001080] [2024-11-28 03:56:39,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160001080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:39,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:39,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:56:39,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286363471] [2024-11-28 03:56:39,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:39,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:56:39,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:39,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:56:39,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:56:39,761 INFO L87 Difference]: Start difference. First operand 239 states and 300 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:40,648 INFO L93 Difference]: Finished difference Result 299 states and 354 transitions. [2024-11-28 03:56:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:56:40,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 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 36 [2024-11-28 03:56:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:40,650 INFO L225 Difference]: With dead ends: 299 [2024-11-28 03:56:40,650 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 03:56:40,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:56:40,651 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 285 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:40,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 902 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:56:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 03:56:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 237. [2024-11-28 03:56:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 204 states have (on average 1.3872549019607843) internal successors, (283), 235 states have internal predecessors, (283), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:40,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 291 transitions. [2024-11-28 03:56:40,659 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 291 transitions. Word has length 36 [2024-11-28 03:56:40,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:40,659 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 291 transitions. [2024-11-28 03:56:40,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:40,659 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 291 transitions. [2024-11-28 03:56:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 03:56:40,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:40,660 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:40,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:56:40,660 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:40,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1298117832, now seen corresponding path program 1 times [2024-11-28 03:56:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:40,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139879327] [2024-11-28 03:56:40,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:40,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:40,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:40,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:40,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139879327] [2024-11-28 03:56:40,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139879327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:40,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:40,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:40,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068504932] [2024-11-28 03:56:40,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:40,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:40,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:40,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:40,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:40,708 INFO L87 Difference]: Start difference. First operand 237 states and 291 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:40,734 INFO L93 Difference]: Finished difference Result 236 states and 286 transitions. [2024-11-28 03:56:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:40,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-28 03:56:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:40,735 INFO L225 Difference]: With dead ends: 236 [2024-11-28 03:56:40,735 INFO L226 Difference]: Without dead ends: 236 [2024-11-28 03:56:40,736 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 [2024-11-28 03:56:40,736 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 11 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:40,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 275 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-28 03:56:40,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-28 03:56:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 204 states have (on average 1.3676470588235294) internal successors, (279), 234 states have internal predecessors, (279), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:40,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 286 transitions. [2024-11-28 03:56:40,743 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 286 transitions. Word has length 37 [2024-11-28 03:56:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:40,743 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 286 transitions. [2024-11-28 03:56:40,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:40,743 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 286 transitions. [2024-11-28 03:56:40,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:56:40,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:40,744 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:40,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:56:40,744 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:40,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:40,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1052521886, now seen corresponding path program 1 times [2024-11-28 03:56:40,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:40,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719029661] [2024-11-28 03:56:40,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:40,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:40,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:40,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:40,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719029661] [2024-11-28 03:56:40,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719029661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:40,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:40,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:40,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304275391] [2024-11-28 03:56:40,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:40,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:40,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:40,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:40,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:40,936 INFO L87 Difference]: Start difference. First operand 236 states and 286 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:41,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:41,138 INFO L93 Difference]: Finished difference Result 235 states and 285 transitions. [2024-11-28 03:56:41,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:41,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2024-11-28 03:56:41,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:41,140 INFO L225 Difference]: With dead ends: 235 [2024-11-28 03:56:41,140 INFO L226 Difference]: Without dead ends: 235 [2024-11-28 03:56:41,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:41,141 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 2 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:41,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 434 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:41,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-28 03:56:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2024-11-28 03:56:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 204 states have (on average 1.3627450980392157) internal successors, (278), 233 states have internal predecessors, (278), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 285 transitions. [2024-11-28 03:56:41,148 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 285 transitions. Word has length 38 [2024-11-28 03:56:41,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:41,149 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 285 transitions. [2024-11-28 03:56:41,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 285 transitions. [2024-11-28 03:56:41,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:56:41,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:41,150 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:41,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:56:41,150 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:41,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:41,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1052521885, now seen corresponding path program 1 times [2024-11-28 03:56:41,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:41,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480984280] [2024-11-28 03:56:41,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:41,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:41,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480984280] [2024-11-28 03:56:41,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480984280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:41,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:41,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:41,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131456253] [2024-11-28 03:56:41,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:41,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:41,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:41,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:41,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:41,381 INFO L87 Difference]: Start difference. First operand 235 states and 285 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:41,619 INFO L93 Difference]: Finished difference Result 234 states and 284 transitions. [2024-11-28 03:56:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2024-11-28 03:56:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:41,621 INFO L225 Difference]: With dead ends: 234 [2024-11-28 03:56:41,621 INFO L226 Difference]: Without dead ends: 234 [2024-11-28 03:56:41,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:41,623 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:41,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 428 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-28 03:56:41,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-28 03:56:41,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 204 states have (on average 1.357843137254902) internal successors, (277), 232 states have internal predecessors, (277), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 284 transitions. [2024-11-28 03:56:41,635 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 284 transitions. Word has length 38 [2024-11-28 03:56:41,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:41,635 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 284 transitions. [2024-11-28 03:56:41,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:41,635 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 284 transitions. [2024-11-28 03:56:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 03:56:41,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:41,636 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:41,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:56:41,636 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:41,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2080892474, now seen corresponding path program 1 times [2024-11-28 03:56:41,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:41,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787068098] [2024-11-28 03:56:41,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:41,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:41,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:41,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787068098] [2024-11-28 03:56:41,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787068098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:41,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:41,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:56:41,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459928620] [2024-11-28 03:56:41,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:41,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:56:41,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:41,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:56:41,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:56:41,790 INFO L87 Difference]: Start difference. First operand 234 states and 284 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:42,103 INFO L93 Difference]: Finished difference Result 251 states and 303 transitions. [2024-11-28 03:56:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:56:42,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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 39 [2024-11-28 03:56:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:42,105 INFO L225 Difference]: With dead ends: 251 [2024-11-28 03:56:42,105 INFO L226 Difference]: Without dead ends: 251 [2024-11-28 03:56:42,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:42,106 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 10 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:42,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 662 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:56:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-28 03:56:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 243. [2024-11-28 03:56:42,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 213 states have (on average 1.3427230046948357) internal successors, (286), 241 states have internal predecessors, (286), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:42,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 293 transitions. [2024-11-28 03:56:42,112 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 293 transitions. Word has length 39 [2024-11-28 03:56:42,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:42,112 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 293 transitions. [2024-11-28 03:56:42,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:42,113 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 293 transitions. [2024-11-28 03:56:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:56:42,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:42,113 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:42,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:56:42,114 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:42,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:42,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1975151208, now seen corresponding path program 1 times [2024-11-28 03:56:42,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:42,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710196258] [2024-11-28 03:56:42,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:42,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:42,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:42,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710196258] [2024-11-28 03:56:42,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710196258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:42,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:42,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:56:42,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572093286] [2024-11-28 03:56:42,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:42,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:56:42,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:42,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:56:42,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:42,907 INFO L87 Difference]: Start difference. First operand 243 states and 293 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:43,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:43,902 INFO L93 Difference]: Finished difference Result 313 states and 358 transitions. [2024-11-28 03:56:43,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:56:43,903 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-28 03:56:43,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:43,904 INFO L225 Difference]: With dead ends: 313 [2024-11-28 03:56:43,904 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 03:56:43,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:56:43,905 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 383 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:43,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 976 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:56:43,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 03:56:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 243. [2024-11-28 03:56:43,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 213 states have (on average 1.3380281690140845) internal successors, (285), 241 states have internal predecessors, (285), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:43,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 292 transitions. [2024-11-28 03:56:43,912 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 292 transitions. Word has length 40 [2024-11-28 03:56:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:43,913 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 292 transitions. [2024-11-28 03:56:43,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 292 transitions. [2024-11-28 03:56:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:56:43,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:43,914 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:43,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:56:43,914 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:43,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:43,914 INFO L85 PathProgramCache]: Analyzing trace with hash -11833437, now seen corresponding path program 1 times [2024-11-28 03:56:43,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:43,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734708726] [2024-11-28 03:56:43,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:43,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:43,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:43,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734708726] [2024-11-28 03:56:43,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734708726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:43,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:43,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:43,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150588733] [2024-11-28 03:56:43,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:43,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:43,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:43,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:43,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:43,965 INFO L87 Difference]: Start difference. First operand 243 states and 292 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:44,034 INFO L93 Difference]: Finished difference Result 252 states and 296 transitions. [2024-11-28 03:56:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:44,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2024-11-28 03:56:44,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:44,036 INFO L225 Difference]: With dead ends: 252 [2024-11-28 03:56:44,036 INFO L226 Difference]: Without dead ends: 252 [2024-11-28 03:56:44,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:44,039 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 92 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:44,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 155 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:56:44,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-28 03:56:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2024-11-28 03:56:44,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 214 states have (on average 1.3364485981308412) internal successors, (286), 242 states have internal predecessors, (286), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 293 transitions. [2024-11-28 03:56:44,051 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 293 transitions. Word has length 40 [2024-11-28 03:56:44,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:44,051 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 293 transitions. [2024-11-28 03:56:44,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 293 transitions. [2024-11-28 03:56:44,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 03:56:44,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:44,052 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:44,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:56:44,053 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:44,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1876878206, now seen corresponding path program 1 times [2024-11-28 03:56:44,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:44,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856419878] [2024-11-28 03:56:44,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:44,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:44,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:44,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856419878] [2024-11-28 03:56:44,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856419878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:44,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:44,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:56:44,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389501151] [2024-11-28 03:56:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:44,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:56:44,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:44,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:56:44,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:44,321 INFO L87 Difference]: Start difference. First operand 244 states and 293 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:44,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:44,760 INFO L93 Difference]: Finished difference Result 245 states and 294 transitions. [2024-11-28 03:56:44,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:56:44,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 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 41 [2024-11-28 03:56:44,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:44,762 INFO L225 Difference]: With dead ends: 245 [2024-11-28 03:56:44,762 INFO L226 Difference]: Without dead ends: 245 [2024-11-28 03:56:44,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:56:44,764 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 65 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:44,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 558 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:56:44,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-28 03:56:44,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243. [2024-11-28 03:56:44,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 214 states have (on average 1.3317757009345794) internal successors, (285), 241 states have internal predecessors, (285), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:44,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 292 transitions. [2024-11-28 03:56:44,775 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 292 transitions. Word has length 41 [2024-11-28 03:56:44,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:44,775 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 292 transitions. [2024-11-28 03:56:44,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:44,776 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 292 transitions. [2024-11-28 03:56:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 03:56:44,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:44,780 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:44,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:56:44,780 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:44,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:44,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1876878207, now seen corresponding path program 1 times [2024-11-28 03:56:44,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:44,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494183396] [2024-11-28 03:56:44,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:44,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:45,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:45,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494183396] [2024-11-28 03:56:45,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494183396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:45,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:45,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:56:45,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207901053] [2024-11-28 03:56:45,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:45,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:56:45,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:45,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:56:45,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:56:45,473 INFO L87 Difference]: Start difference. First operand 243 states and 292 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:46,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:46,219 INFO L93 Difference]: Finished difference Result 242 states and 291 transitions. [2024-11-28 03:56:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:56:46,220 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 41 [2024-11-28 03:56:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:46,221 INFO L225 Difference]: With dead ends: 242 [2024-11-28 03:56:46,221 INFO L226 Difference]: Without dead ends: 242 [2024-11-28 03:56:46,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:56:46,222 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 182 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:46,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 694 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:56:46,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-28 03:56:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-28 03:56:46,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 214 states have (on average 1.3271028037383177) internal successors, (284), 240 states have internal predecessors, (284), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 291 transitions. [2024-11-28 03:56:46,229 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 291 transitions. Word has length 41 [2024-11-28 03:56:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:46,229 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 291 transitions. [2024-11-28 03:56:46,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 291 transitions. [2024-11-28 03:56:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:56:46,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:46,230 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:46,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:56:46,230 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:46,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2059213292, now seen corresponding path program 1 times [2024-11-28 03:56:46,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:46,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172127109] [2024-11-28 03:56:46,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:46,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:46,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:46,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172127109] [2024-11-28 03:56:46,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172127109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:46,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:46,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:46,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579381323] [2024-11-28 03:56:46,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:46,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:46,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:46,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:46,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:46,270 INFO L87 Difference]: Start difference. First operand 242 states and 291 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:46,282 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2024-11-28 03:56:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:46,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-28 03:56:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:46,283 INFO L225 Difference]: With dead ends: 243 [2024-11-28 03:56:46,283 INFO L226 Difference]: Without dead ends: 243 [2024-11-28 03:56:46,284 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 [2024-11-28 03:56:46,284 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:46,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 290 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-28 03:56:46,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2024-11-28 03:56:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 215 states have (on average 1.3255813953488371) internal successors, (285), 241 states have internal predecessors, (285), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 292 transitions. [2024-11-28 03:56:46,293 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 292 transitions. Word has length 42 [2024-11-28 03:56:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:46,293 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 292 transitions. [2024-11-28 03:56:46,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 292 transitions. [2024-11-28 03:56:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 03:56:46,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:46,294 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:46,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:56:46,294 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:46,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:46,295 INFO L85 PathProgramCache]: Analyzing trace with hash -705776026, now seen corresponding path program 1 times [2024-11-28 03:56:46,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:46,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947258391] [2024-11-28 03:56:46,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:46,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:46,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:46,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:46,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947258391] [2024-11-28 03:56:46,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947258391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:46,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:46,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:56:46,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912201790] [2024-11-28 03:56:46,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:46,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:56:46,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:46,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:56:46,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:46,974 INFO L87 Difference]: Start difference. First operand 243 states and 292 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:48,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:48,040 INFO L93 Difference]: Finished difference Result 303 states and 353 transitions. [2024-11-28 03:56:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:56:48,040 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-28 03:56:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:48,042 INFO L225 Difference]: With dead ends: 303 [2024-11-28 03:56:48,042 INFO L226 Difference]: Without dead ends: 303 [2024-11-28 03:56:48,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:56:48,043 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 458 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:48,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 884 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:56:48,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-28 03:56:48,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 243. [2024-11-28 03:56:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 215 states have (on average 1.3209302325581396) internal successors, (284), 241 states have internal predecessors, (284), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:48,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 291 transitions. [2024-11-28 03:56:48,051 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 291 transitions. Word has length 43 [2024-11-28 03:56:48,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:48,052 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 291 transitions. [2024-11-28 03:56:48,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 291 transitions. [2024-11-28 03:56:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:56:48,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:48,053 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:48,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:56:48,053 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:48,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash 243099665, now seen corresponding path program 1 times [2024-11-28 03:56:48,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:48,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652364730] [2024-11-28 03:56:48,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:48,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:48,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652364730] [2024-11-28 03:56:48,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652364730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:48,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:48,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:56:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250605049] [2024-11-28 03:56:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:48,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:56:48,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:48,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:56:48,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:56:48,217 INFO L87 Difference]: Start difference. First operand 243 states and 291 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:48,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:48,457 INFO L93 Difference]: Finished difference Result 255 states and 304 transitions. [2024-11-28 03:56:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:56:48,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-28 03:56:48,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:48,459 INFO L225 Difference]: With dead ends: 255 [2024-11-28 03:56:48,459 INFO L226 Difference]: Without dead ends: 255 [2024-11-28 03:56:48,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:48,459 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 22 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:48,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 609 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:56:48,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-28 03:56:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 241. [2024-11-28 03:56:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 214 states have (on average 1.3177570093457944) internal successors, (282), 239 states have internal predecessors, (282), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:48,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 288 transitions. [2024-11-28 03:56:48,466 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 288 transitions. Word has length 44 [2024-11-28 03:56:48,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:48,467 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 288 transitions. [2024-11-28 03:56:48,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:48,467 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 288 transitions. [2024-11-28 03:56:48,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 03:56:48,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:48,469 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:56:48,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:56:48,470 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:48,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash -342103010, now seen corresponding path program 1 times [2024-11-28 03:56:48,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:48,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688192040] [2024-11-28 03:56:48,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:48,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:48,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688192040] [2024-11-28 03:56:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688192040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053474434] [2024-11-28 03:56:48,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:48,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:48,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:48,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:48,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:56:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:48,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 03:56:48,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:48,992 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 [2024-11-28 03:56:49,001 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 [2024-11-28 03:56:49,012 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 03:56:49,024 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 27 treesize of output 11 [2024-11-28 03:56:49,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:56:49,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-28 03:56:49,113 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 21 treesize of output 20 [2024-11-28 03:56:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:49,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:49,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053474434] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:49,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:49,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 6] total 9 [2024-11-28 03:56:49,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556162262] [2024-11-28 03:56:49,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:49,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:56:49,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:49,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:56:49,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:56:49,683 INFO L87 Difference]: Start difference. First operand 241 states and 288 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:50,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:50,242 INFO L93 Difference]: Finished difference Result 309 states and 358 transitions. [2024-11-28 03:56:50,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:56:50,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 43 [2024-11-28 03:56:50,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:50,244 INFO L225 Difference]: With dead ends: 309 [2024-11-28 03:56:50,244 INFO L226 Difference]: Without dead ends: 309 [2024-11-28 03:56:50,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:56:50,245 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 139 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:50,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 659 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:56:50,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-28 03:56:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 263. [2024-11-28 03:56:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 236 states have (on average 1.3305084745762712) internal successors, (314), 261 states have internal predecessors, (314), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 320 transitions. [2024-11-28 03:56:50,253 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 320 transitions. Word has length 43 [2024-11-28 03:56:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:50,253 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 320 transitions. [2024-11-28 03:56:50,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 320 transitions. [2024-11-28 03:56:50,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:56:50,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:50,257 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:50,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:50,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 03:56:50,461 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:50,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:50,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2015253368, now seen corresponding path program 1 times [2024-11-28 03:56:50,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:50,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470294473] [2024-11-28 03:56:50,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:50,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:50,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:50,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470294473] [2024-11-28 03:56:50,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470294473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:50,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141268208] [2024-11-28 03:56:50,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:50,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:50,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:50,590 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:50,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:56:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:50,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:56:50,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:50,823 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 13 treesize of output 9 [2024-11-28 03:56:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:50,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:50,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:50,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141268208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:56:50,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:56:50,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-28 03:56:50,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583589189] [2024-11-28 03:56:50,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:56:50,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:50,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:50,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:50,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:50,939 INFO L87 Difference]: Start difference. First operand 263 states and 320 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:51,090 INFO L93 Difference]: Finished difference Result 296 states and 353 transitions. [2024-11-28 03:56:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 44 [2024-11-28 03:56:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:51,092 INFO L225 Difference]: With dead ends: 296 [2024-11-28 03:56:51,092 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 03:56:51,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:51,093 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:51,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 314 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:56:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 03:56:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 270. [2024-11-28 03:56:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 243 states have (on average 1.3209876543209877) internal successors, (321), 268 states have internal predecessors, (321), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 327 transitions. [2024-11-28 03:56:51,101 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 327 transitions. Word has length 44 [2024-11-28 03:56:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:51,102 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 327 transitions. [2024-11-28 03:56:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 327 transitions. [2024-11-28 03:56:51,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:56:51,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:51,103 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:51,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:51,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 03:56:51,307 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:51,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1422563986, now seen corresponding path program 1 times [2024-11-28 03:56:51,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:51,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259499236] [2024-11-28 03:56:51,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:51,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:51,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:51,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259499236] [2024-11-28 03:56:51,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259499236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:51,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:51,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:56:51,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988410776] [2024-11-28 03:56:51,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:51,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:56:51,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:51,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:56:51,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:51,745 INFO L87 Difference]: Start difference. First operand 270 states and 327 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:52,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:52,459 INFO L93 Difference]: Finished difference Result 287 states and 335 transitions. [2024-11-28 03:56:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:56:52,460 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 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 44 [2024-11-28 03:56:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:52,461 INFO L225 Difference]: With dead ends: 287 [2024-11-28 03:56:52,461 INFO L226 Difference]: Without dead ends: 287 [2024-11-28 03:56:52,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:56:52,462 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 253 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:52,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 594 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:56:52,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-28 03:56:52,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 270. [2024-11-28 03:56:52,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 243 states have (on average 1.308641975308642) internal successors, (318), 268 states have internal predecessors, (318), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 324 transitions. [2024-11-28 03:56:52,469 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 324 transitions. Word has length 44 [2024-11-28 03:56:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:52,470 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 324 transitions. [2024-11-28 03:56:52,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 324 transitions. [2024-11-28 03:56:52,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:56:52,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:52,471 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:52,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:56:52,471 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:52,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:52,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1422563987, now seen corresponding path program 1 times [2024-11-28 03:56:52,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:52,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707148] [2024-11-28 03:56:52,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:52,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:52,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:52,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707148] [2024-11-28 03:56:52,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:52,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:52,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:56:52,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451419188] [2024-11-28 03:56:52,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:52,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:56:52,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:52,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:56:52,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:52,759 INFO L87 Difference]: Start difference. First operand 270 states and 324 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:53,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:53,369 INFO L93 Difference]: Finished difference Result 286 states and 334 transitions. [2024-11-28 03:56:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:56:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 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 44 [2024-11-28 03:56:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:53,371 INFO L225 Difference]: With dead ends: 286 [2024-11-28 03:56:53,371 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 03:56:53,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:56:53,372 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 355 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:53,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 574 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:56:53,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 03:56:53,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 270. [2024-11-28 03:56:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 243 states have (on average 1.3045267489711934) internal successors, (317), 268 states have internal predecessors, (317), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:53,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 323 transitions. [2024-11-28 03:56:53,379 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 323 transitions. Word has length 44 [2024-11-28 03:56:53,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:53,380 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 323 transitions. [2024-11-28 03:56:53,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:53,380 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 323 transitions. [2024-11-28 03:56:53,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 03:56:53,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:53,381 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:53,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:56:53,381 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:53,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:53,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1149847398, now seen corresponding path program 1 times [2024-11-28 03:56:53,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:53,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054653116] [2024-11-28 03:56:53,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:53,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:53,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:53,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054653116] [2024-11-28 03:56:53,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054653116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:53,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:53,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:53,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888000935] [2024-11-28 03:56:53,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:53,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:53,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:53,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:53,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:53,439 INFO L87 Difference]: Start difference. First operand 270 states and 323 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:53,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:53,523 INFO L93 Difference]: Finished difference Result 276 states and 326 transitions. [2024-11-28 03:56:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:53,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-28 03:56:53,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:53,525 INFO L225 Difference]: With dead ends: 276 [2024-11-28 03:56:53,525 INFO L226 Difference]: Without dead ends: 276 [2024-11-28 03:56:53,525 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 [2024-11-28 03:56:53,526 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 71 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:53,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 182 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:56:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-28 03:56:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 269. [2024-11-28 03:56:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 243 states have (on average 1.2921810699588476) internal successors, (314), 267 states have internal predecessors, (314), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 319 transitions. [2024-11-28 03:56:53,532 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 319 transitions. Word has length 45 [2024-11-28 03:56:53,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:53,533 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 319 transitions. [2024-11-28 03:56:53,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:53,533 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 319 transitions. [2024-11-28 03:56:53,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 03:56:53,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:53,534 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:53,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 03:56:53,534 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:53,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:53,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1632454042, now seen corresponding path program 1 times [2024-11-28 03:56:53,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:53,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829585664] [2024-11-28 03:56:53,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:53,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:53,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:53,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829585664] [2024-11-28 03:56:53,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829585664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:53,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:53,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:56:53,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061874634] [2024-11-28 03:56:53,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:53,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:56:53,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:53,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:56:53,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:56:53,880 INFO L87 Difference]: Start difference. First operand 269 states and 319 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:54,447 INFO L93 Difference]: Finished difference Result 286 states and 330 transitions. [2024-11-28 03:56:54,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:56:54,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-28 03:56:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:54,449 INFO L225 Difference]: With dead ends: 286 [2024-11-28 03:56:54,449 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 03:56:54,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:54,450 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 114 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:54,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 556 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:56:54,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 03:56:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 268. [2024-11-28 03:56:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 242 states have (on average 1.2892561983471074) internal successors, (312), 266 states have internal predecessors, (312), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 317 transitions. [2024-11-28 03:56:54,458 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 317 transitions. Word has length 48 [2024-11-28 03:56:54,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:54,458 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 317 transitions. [2024-11-28 03:56:54,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,459 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 317 transitions. [2024-11-28 03:56:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 03:56:54,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:54,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:54,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 03:56:54,461 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:54,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:54,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1264357658, now seen corresponding path program 1 times [2024-11-28 03:56:54,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:54,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952765028] [2024-11-28 03:56:54,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:54,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:54,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:54,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952765028] [2024-11-28 03:56:54,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952765028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:54,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:54,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153432563] [2024-11-28 03:56:54,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:54,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:56:54,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:54,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:56:54,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:56:54,521 INFO L87 Difference]: Start difference. First operand 268 states and 317 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:54,537 INFO L93 Difference]: Finished difference Result 322 states and 388 transitions. [2024-11-28 03:56:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:56:54,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-28 03:56:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:54,539 INFO L225 Difference]: With dead ends: 322 [2024-11-28 03:56:54,539 INFO L226 Difference]: Without dead ends: 322 [2024-11-28 03:56:54,540 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 [2024-11-28 03:56:54,540 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 11 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:54,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 298 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-28 03:56:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 305. [2024-11-28 03:56:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 279 states have (on average 1.3261648745519714) internal successors, (370), 303 states have internal predecessors, (370), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 375 transitions. [2024-11-28 03:56:54,549 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 375 transitions. Word has length 48 [2024-11-28 03:56:54,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:54,549 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 375 transitions. [2024-11-28 03:56:54,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 375 transitions. [2024-11-28 03:56:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 03:56:54,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:54,550 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] [2024-11-28 03:56:54,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 03:56:54,551 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:54,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:54,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1268666111, now seen corresponding path program 1 times [2024-11-28 03:56:54,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:54,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076406850] [2024-11-28 03:56:54,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:54,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:54,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:54,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076406850] [2024-11-28 03:56:54,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076406850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:54,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:54,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:56:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19831618] [2024-11-28 03:56:54,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:54,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:56:54,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:54,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:56:54,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:54,675 INFO L87 Difference]: Start difference. First operand 305 states and 375 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:54,822 INFO L93 Difference]: Finished difference Result 253 states and 287 transitions. [2024-11-28 03:56:54,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:54,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2024-11-28 03:56:54,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:54,824 INFO L225 Difference]: With dead ends: 253 [2024-11-28 03:56:54,824 INFO L226 Difference]: Without dead ends: 253 [2024-11-28 03:56:54,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:54,826 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 1 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:54,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 581 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:56:54,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-28 03:56:54,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2024-11-28 03:56:54,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 228 states have (on average 1.2412280701754386) internal successors, (283), 251 states have internal predecessors, (283), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 287 transitions. [2024-11-28 03:56:54,836 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 287 transitions. Word has length 48 [2024-11-28 03:56:54,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:54,836 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 287 transitions. [2024-11-28 03:56:54,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:54,836 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 287 transitions. [2024-11-28 03:56:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 03:56:54,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:54,837 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:54,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 03:56:54,837 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:54,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash -320045563, now seen corresponding path program 1 times [2024-11-28 03:56:54,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:54,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484113241] [2024-11-28 03:56:54,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:54,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:56:55,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:55,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484113241] [2024-11-28 03:56:55,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484113241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:55,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:55,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:56:55,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523161983] [2024-11-28 03:56:55,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:55,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:56:55,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:55,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:56:55,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:56:55,129 INFO L87 Difference]: Start difference. First operand 253 states and 287 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:55,552 INFO L93 Difference]: Finished difference Result 237 states and 268 transitions. [2024-11-28 03:56:55,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:56:55,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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 51 [2024-11-28 03:56:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:55,554 INFO L225 Difference]: With dead ends: 237 [2024-11-28 03:56:55,554 INFO L226 Difference]: Without dead ends: 237 [2024-11-28 03:56:55,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:56:55,555 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 220 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:55,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 605 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:56:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-28 03:56:55,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2024-11-28 03:56:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 204 states have (on average 1.2598039215686274) internal successors, (257), 227 states have internal predecessors, (257), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 261 transitions. [2024-11-28 03:56:55,562 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 261 transitions. Word has length 51 [2024-11-28 03:56:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:55,562 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 261 transitions. [2024-11-28 03:56:55,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:55,564 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 261 transitions. [2024-11-28 03:56:55,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 03:56:55,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:55,565 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:56:55,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-28 03:56:55,566 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:55,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:55,566 INFO L85 PathProgramCache]: Analyzing trace with hash 484459117, now seen corresponding path program 1 times [2024-11-28 03:56:55,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:55,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578369276] [2024-11-28 03:56:55,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:55,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:55,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578369276] [2024-11-28 03:56:55,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578369276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:55,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:55,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:55,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728562126] [2024-11-28 03:56:55,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:55,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:55,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:55,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:55,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:55,717 INFO L87 Difference]: Start difference. First operand 229 states and 261 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:55,863 INFO L93 Difference]: Finished difference Result 244 states and 277 transitions. [2024-11-28 03:56:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:55,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2024-11-28 03:56:55,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:55,864 INFO L225 Difference]: With dead ends: 244 [2024-11-28 03:56:55,864 INFO L226 Difference]: Without dead ends: 244 [2024-11-28 03:56:55,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:56:55,865 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 13 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:55,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 508 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:56:55,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-28 03:56:55,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 232. [2024-11-28 03:56:55,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 207 states have (on average 1.2560386473429952) internal successors, (260), 230 states have internal predecessors, (260), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 264 transitions. [2024-11-28 03:56:55,871 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 264 transitions. Word has length 54 [2024-11-28 03:56:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:55,872 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 264 transitions. [2024-11-28 03:56:55,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 264 transitions. [2024-11-28 03:56:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:56:55,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:55,873 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:56:55,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 03:56:55,873 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 03:56:55,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1972076818, now seen corresponding path program 1 times [2024-11-28 03:56:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:55,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927807486] [2024-11-28 03:56:55,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:55,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:57,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927807486] [2024-11-28 03:56:57,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927807486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949442099] [2024-11-28 03:56:57,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:57,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:57,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:57,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:56:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:57,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 03:56:57,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:57,179 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 [2024-11-28 03:56:57,241 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 [2024-11-28 03:56:57,248 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 [2024-11-28 03:56:57,476 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 03:56:57,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 03:56:57,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:57,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 03:56:57,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:57,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 03:56:57,706 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 03:56:57,706 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 48 treesize of output 43 [2024-11-28 03:56:57,716 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 [2024-11-28 03:56:57,965 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 03:56:57,965 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 22 [2024-11-28 03:56:57,998 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 03:56:57,998 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-28 03:56:58,225 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 03:56:58,226 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 48 treesize of output 43 [2024-11-28 03:56:58,234 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 [2024-11-28 03:56:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:56:58,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:59,025 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1487 (Array Int Int)) (v_ArrVal_1483 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1483))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1487)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1488 (Array Int Int)) (v_ArrVal_1484 (Array Int Int)) (v_ArrVal_1483 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1484) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1488) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)))) is different from false [2024-11-28 03:56:59,187 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|))) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((|ULTIMATE.start_main_#t~malloc10#1.offset| Int) (v_ArrVal_1488 (Array Int Int)) (v_ArrVal_1484 (Array Int Int)) (v_ArrVal_1483 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1484) (select (select (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1483) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1488) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1487 (Array Int Int)) (v_ArrVal_1483 (Array Int Int))) (= (select (select (let ((.cse2 (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1483))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1487)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)))) is different from false [2024-11-28 03:57:04,271 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:04,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:04,278 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 41 [2024-11-28 03:57:04,286 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:04,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:04,290 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 1 case distinctions, treesize of input 242 treesize of output 164 [2024-11-28 03:57:04,303 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:04,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 41 treesize of output 33 [2024-11-28 03:57:04,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 10 [2024-11-28 03:57:04,322 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:04,327 INFO L349 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2024-11-28 03:57:04,328 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 1 [2024-11-28 03:57:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:57:10,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949442099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:57:10,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:57:10,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 15] total 37 [2024-11-28 03:57:10,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875480182] [2024-11-28 03:57:10,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:57:10,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 03:57:10,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:10,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 03:57:10,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=988, Unknown=39, NotChecked=134, Total=1332 [2024-11-28 03:57:10,421 INFO L87 Difference]: Start difference. First operand 232 states and 264 transitions. Second operand has 37 states, 37 states have (on average 4.054054054054054) internal successors, (150), 37 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:57:14,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:57:18,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:57:22,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:57:27,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:57:36,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:57:40,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:57:44,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:57:48,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:57:52,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:57:56,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:00,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:04,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:08,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:12,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:16,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:20,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:25,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:29,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:33,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:37,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:45,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:49,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:58:54,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:59:11,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:59:20,698 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base|)) (.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (forall ((v_ArrVal_1487 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1487) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1488 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1488) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (= (select .cse2 0) 0) (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_75| Int)) (or (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_10| Int)) (or (forall ((|ULTIMATE.start_main_#t~malloc10#1.offset| Int) (v_ArrVal_1488 (Array Int Int)) (v_ArrVal_1484 (Array Int Int)) (v_ArrVal_1483 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base| (store .cse2 |v_ULTIMATE.start_main_~end~0#1.offset_75| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_10| v_ArrVal_1484) (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base| (store .cse3 |v_ULTIMATE.start_main_~end~0#1.offset_75| |v_ULTIMATE.start_main_#t~malloc10#1.base_10|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_10| v_ArrVal_1483) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_75|) v_ArrVal_1488) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_10|) 0)))) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_75|))) (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_75| Int)) (or (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_75|) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_10| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_10|) 0)) (forall ((v_ArrVal_1487 (Array Int Int)) (v_ArrVal_1483 (Array Int Int))) (= (select (select (let ((.cse4 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base| (store .cse3 |v_ULTIMATE.start_main_~end~0#1.offset_75| |v_ULTIMATE.start_main_#t~malloc10#1.base_10|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_10| v_ArrVal_1483))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_75|) v_ArrVal_1487)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)))))))) is different from false [2024-11-28 03:59:34,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-28 03:59:38,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:53,233 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (forall ((v_ArrVal_1487 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1487) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1488 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1488) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1488 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1488) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1487 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1487) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)))) is different from false [2024-11-28 03:59:57,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:01,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:01,827 INFO L93 Difference]: Finished difference Result 718 states and 804 transitions. [2024-11-28 04:00:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-28 04:00:01,828 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.054054054054054) internal successors, (150), 37 states have internal predecessors, (150), 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 56 [2024-11-28 04:00:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:01,831 INFO L225 Difference]: With dead ends: 718 [2024-11-28 04:00:01,831 INFO L226 Difference]: Without dead ends: 718 [2024-11-28 04:00:01,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 94 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1532 ImplicationChecksByTransitivity, 66.5s TimeCoverageRelationStatistics Valid=1076, Invalid=4510, Unknown=130, NotChecked=604, Total=6320 [2024-11-28 04:00:01,833 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 1536 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 144 mSolverCounterUnsat, 140 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 140 IncrementalHoareTripleChecker+Unknown, 1363 IncrementalHoareTripleChecker+Unchecked, 116.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:01,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 2470 Invalid, 3781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 2134 Invalid, 140 Unknown, 1363 Unchecked, 116.6s Time] [2024-11-28 04:00:01,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-28 04:00:01,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 336. [2024-11-28 04:00:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 311 states have (on average 1.1961414790996785) internal successors, (372), 334 states have internal predecessors, (372), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 376 transitions. [2024-11-28 04:00:01,844 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 376 transitions. Word has length 56 [2024-11-28 04:00:01,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:01,845 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 376 transitions. [2024-11-28 04:00:01,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.054054054054054) internal successors, (150), 37 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:01,845 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 376 transitions. [2024-11-28 04:00:01,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:00:01,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:01,846 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] [2024-11-28 04:00:01,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:00:02,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:00:02,052 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:00:02,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash 481744699, now seen corresponding path program 1 times [2024-11-28 04:00:02,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:02,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888561040] [2024-11-28 04:00:02,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:02,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:02,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:02,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888561040] [2024-11-28 04:00:02,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888561040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:02,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856409930] [2024-11-28 04:00:02,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:02,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:02,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:02,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:02,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:00:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:02,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:00:02,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:02,829 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 [2024-11-28 04:00:02,969 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:00:02,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 04:00:03,008 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 [2024-11-28 04:00:03,107 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:00:03,107 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 25 treesize of output 26 [2024-11-28 04:00:03,222 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:00:03,222 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 17 [2024-11-28 04:00:03,317 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:00:03,317 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 34 treesize of output 33 [2024-11-28 04:00:03,490 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 25 treesize of output 13 [2024-11-28 04:00:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:03,499 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:03,935 INFO L349 Elim1Store]: treesize reduction 5, result has 66.7 percent of original size [2024-11-28 04:00:03,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-28 04:00:04,202 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_80| Int) (v_ArrVal_1586 (Array Int Int)) (v_ArrVal_1584 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~end~0#1.offset_80| 0) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1584))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (= (select (select (store .cse0 .cse1 v_ArrVal_1586) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_80|) .cse1))) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_80|))) is different from false [2024-11-28 04:00:04,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:04,309 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 36 [2024-11-28 04:00:04,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:04,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 330 treesize of output 265 [2024-11-28 04:00:04,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:04,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2024-11-28 04:00:04,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 74 treesize of output 68 [2024-11-28 04:00:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:04,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856409930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:04,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:04,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 35 [2024-11-28 04:00:04,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357096731] [2024-11-28 04:00:04,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:04,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 04:00:04,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:04,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 04:00:04,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1066, Unknown=13, NotChecked=66, Total=1260 [2024-11-28 04:00:04,989 INFO L87 Difference]: Start difference. First operand 336 states and 376 transitions. Second operand has 36 states, 35 states have (on average 4.771428571428571) internal successors, (167), 36 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:06,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:06,998 INFO L93 Difference]: Finished difference Result 492 states and 537 transitions. [2024-11-28 04:00:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:00:06,998 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.771428571428571) internal successors, (167), 36 states have internal predecessors, (167), 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 59 [2024-11-28 04:00:06,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:07,000 INFO L225 Difference]: With dead ends: 492 [2024-11-28 04:00:07,000 INFO L226 Difference]: Without dead ends: 492 [2024-11-28 04:00:07,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=262, Invalid=1799, Unknown=13, NotChecked=88, Total=2162 [2024-11-28 04:00:07,001 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 968 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 2624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 326 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:07,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 2043 Invalid, 2624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2223 Invalid, 0 Unknown, 326 Unchecked, 1.7s Time] [2024-11-28 04:00:07,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-28 04:00:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 395. [2024-11-28 04:00:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 370 states have (on average 1.1945945945945946) internal successors, (442), 393 states have internal predecessors, (442), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 446 transitions. [2024-11-28 04:00:07,010 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 446 transitions. Word has length 59 [2024-11-28 04:00:07,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:07,011 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 446 transitions. [2024-11-28 04:00:07,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.771428571428571) internal successors, (167), 36 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 446 transitions. [2024-11-28 04:00:07,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:00:07,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:07,012 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] [2024-11-28 04:00:07,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:00:07,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:00:07,216 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:00:07,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:07,216 INFO L85 PathProgramCache]: Analyzing trace with hash 481744700, now seen corresponding path program 1 times [2024-11-28 04:00:07,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:07,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635859463] [2024-11-28 04:00:07,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:07,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:07,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635859463] [2024-11-28 04:00:07,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635859463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707546065] [2024-11-28 04:00:07,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:07,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:07,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:07,879 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:07,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:00:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:08,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:00:08,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:08,099 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 [2024-11-28 04:00:08,246 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 8 treesize of output 1 [2024-11-28 04:00:08,265 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:00:08,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 04:00:08,309 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 [2024-11-28 04:00:08,316 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 [2024-11-28 04:00:08,448 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:00:08,448 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 50 treesize of output 45 [2024-11-28 04:00:08,453 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 [2024-11-28 04:00:08,579 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 04:00:08,579 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-28 04:00:08,605 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:00:08,605 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-28 04:00:08,752 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:00:08,752 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 50 treesize of output 45 [2024-11-28 04:00:08,757 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 [2024-11-28 04:00:08,994 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 25 treesize of output 13 [2024-11-28 04:00:08,997 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 [2024-11-28 04:00:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:09,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:09,898 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_1689 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_87| Int)) (or (< 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1689) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|) 9)) (< |v_ULTIMATE.start_main_~end~0#1.offset_87| 0) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_87|))) (forall ((v_ArrVal_1689 (Array Int Int)) (v_ArrVal_1688 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_87| Int)) (or (< |v_ULTIMATE.start_main_~end~0#1.offset_87| 0) (< (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1689) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|) 11) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1688) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|))) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_87|))))) is different from false [2024-11-28 04:00:09,955 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1689 (Array Int Int)) (v_ArrVal_1688 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_87| Int) (v_ArrVal_1685 (Array Int Int)) (v_ArrVal_1684 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~end~0#1.offset_87| 0) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1685))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (< (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1684) .cse0 v_ArrVal_1689) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|) 11) (select |c_#length| (select (select (store .cse1 .cse0 v_ArrVal_1688) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|))))) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_87|))) (forall ((v_ArrVal_1689 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_87| Int) (v_ArrVal_1685 (Array Int Int)) (v_ArrVal_1684 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~end~0#1.offset_87| 0) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1684) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1685) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1689) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|) 9)) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_87|)))) is different from false [2024-11-28 04:00:09,983 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_1689 (Array Int Int)) (v_ArrVal_1688 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_87| Int) (v_ArrVal_1685 (Array Int Int)) (v_ArrVal_1684 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~end~0#1.offset_87| 0) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1685))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (< (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1684) .cse1 v_ArrVal_1689) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|) 11) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1688) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|))))) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_87|))) (forall ((v_ArrVal_1689 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_87| Int) (v_ArrVal_1685 (Array Int Int)) (v_ArrVal_1684 (Array Int Int))) (or (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1684) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1685) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1689) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_87|) 9)) (< |v_ULTIMATE.start_main_~end~0#1.offset_87| 0) (< |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_~end~0#1.offset_87|))))) is different from false [2024-11-28 04:00:10,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:10,024 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 74 [2024-11-28 04:00:10,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:10,034 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 50 [2024-11-28 04:00:10,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:10,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 334 treesize of output 301 [2024-11-28 04:00:10,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:10,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 826 treesize of output 793 [2024-11-28 04:00:10,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 180 treesize of output 172 [2024-11-28 04:00:10,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 172 treesize of output 164 [2024-11-28 04:00:10,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 84 treesize of output 80 [2024-11-28 04:00:10,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:10,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 160 treesize of output 150 [2024-11-28 04:00:10,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:10,346 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 39 [2024-11-28 04:00:10,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:10,355 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2024-11-28 04:00:10,359 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:00:10,362 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 28 treesize of output 20 [2024-11-28 04:00:10,365 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:00:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:00:10,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:00:10,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-28 04:00:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:10,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707546065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:10,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:10,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 33 [2024-11-28 04:00:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902689855] [2024-11-28 04:00:10,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:10,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 04:00:10,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:10,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 04:00:10,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=813, Unknown=12, NotChecked=180, Total=1122 [2024-11-28 04:00:10,791 INFO L87 Difference]: Start difference. First operand 395 states and 446 transitions. Second operand has 34 states, 33 states have (on average 5.181818181818182) internal successors, (171), 34 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:13,371 INFO L93 Difference]: Finished difference Result 512 states and 560 transitions. [2024-11-28 04:00:13,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:00:13,371 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.181818181818182) internal successors, (171), 34 states have internal predecessors, (171), 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 59 [2024-11-28 04:00:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:13,373 INFO L225 Difference]: With dead ends: 512 [2024-11-28 04:00:13,373 INFO L226 Difference]: Without dead ends: 512 [2024-11-28 04:00:13,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=299, Invalid=1681, Unknown=12, NotChecked=264, Total=2256 [2024-11-28 04:00:13,374 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 685 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 3605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1069 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:13,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1921 Invalid, 3605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2493 Invalid, 0 Unknown, 1069 Unchecked, 2.0s Time] [2024-11-28 04:00:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-28 04:00:13,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 393. [2024-11-28 04:00:13,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 368 states have (on average 1.1929347826086956) internal successors, (439), 391 states have internal predecessors, (439), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 443 transitions. [2024-11-28 04:00:13,382 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 443 transitions. Word has length 59 [2024-11-28 04:00:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:13,382 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 443 transitions. [2024-11-28 04:00:13,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.181818181818182) internal successors, (171), 34 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 443 transitions. [2024-11-28 04:00:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:00:13,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:13,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:13,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:00:13,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 04:00:13,584 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:00:13,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:13,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1054799839, now seen corresponding path program 1 times [2024-11-28 04:00:13,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:13,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103707823] [2024-11-28 04:00:13,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:13,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:14,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:14,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103707823] [2024-11-28 04:00:14,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103707823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:14,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466350519] [2024-11-28 04:00:14,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:14,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:14,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:14,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:14,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:00:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:14,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 04:00:14,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:14,863 INFO L349 Elim1Store]: treesize reduction 25, result has 47.9 percent of original size [2024-11-28 04:00:14,864 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 63 treesize of output 61 [2024-11-28 04:00:14,884 INFO L349 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2024-11-28 04:00:14,884 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 58 treesize of output 58 [2024-11-28 04:00:40,772 INFO L349 Elim1Store]: treesize reduction 48, result has 73.5 percent of original size [2024-11-28 04:00:40,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 153 treesize of output 223 [2024-11-28 04:00:42,195 INFO L349 Elim1Store]: treesize reduction 36, result has 72.9 percent of original size [2024-11-28 04:00:42,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 237 [2024-11-28 04:00:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:00:49,509 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:49,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466350519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:49,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:49,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 22 [2024-11-28 04:00:49,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43598038] [2024-11-28 04:00:49,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:49,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:49,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:49,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:49,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=392, Unknown=4, NotChecked=0, Total=462 [2024-11-28 04:00:49,511 INFO L87 Difference]: Start difference. First operand 393 states and 443 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:51,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:55,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:01,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:03,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:08,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:13,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:22,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:26,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:32,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:36,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:41,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:43,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:48,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:51,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:55,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:00,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:04,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:09,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:13,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:17,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:22,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:26,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:30,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:34,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:38,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:43,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:47,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:51,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:56,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:00,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:05,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:09,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:13,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:18,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:22,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:24,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:28,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:33,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:37,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:39,546 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-28 04:03:39,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-28 04:03:39,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=71, Invalid=430, Unknown=5, NotChecked=0, Total=506 [2024-11-28 04:03:39,547 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 12 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 152.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:39,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 278 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 34 Unknown, 0 Unchecked, 163.5s Time] [2024-11-28 04:03:39,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:03:39,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 04:03:39,749 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:388) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-11-28 04:03:39,753 INFO L158 Benchmark]: Toolchain (without parser) took 436161.05ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 91.4MB in the beginning and 83.5MB in the end (delta: 7.9MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2024-11-28 04:03:39,754 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:03:39,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.26ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 73.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:03:39,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.19ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.2MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:03:39,754 INFO L158 Benchmark]: Boogie Preprocessor took 64.03ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 68.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:03:39,754 INFO L158 Benchmark]: RCFGBuilder took 972.38ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 88.7MB in the end (delta: -20.5MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-11-28 04:03:39,754 INFO L158 Benchmark]: TraceAbstraction took 434540.54ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 88.2MB in the beginning and 83.5MB in the end (delta: 4.7MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-11-28 04:03:39,756 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.26ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 73.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.19ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 71.2MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.03ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 68.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 972.38ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 88.7MB in the end (delta: -20.5MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * TraceAbstraction took 434540.54ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 88.2MB in the beginning and 83.5MB in the end (delta: 4.7MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:03:42,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:03:42,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:03:42,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:03:42,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:03:42,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:03:42,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:03:42,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:03:42,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:03:42,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:03:42,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:03:42,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:03:42,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:03:42,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:03:42,244 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:03:42,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:03:42,244 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:03:42,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:03:42,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:03:42,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:03:42,245 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:03:42,245 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:03:42,245 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:03:42,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:03:42,246 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:03:42,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:03:42,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:03:42,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:03:42,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:42,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:03:42,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:03:42,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:03:42,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:03:42,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:42,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:03:42,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:03:42,249 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:03:42,249 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:03:42,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:03:42,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:03:42,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:03:42,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:03:42,250 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_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2024-11-28 04:03:42,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:03:42,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:03:42,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:03:42,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:03:42,587 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:03:42,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2024-11-28 04:03:45,584 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/7a5772060/d812baf5abc8448d9b40a73aa87fe406/FLAG958e9a682 [2024-11-28 04:03:45,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:03:45,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/sv-benchmarks/c/forester-heap/dll-01-2.i [2024-11-28 04:03:45,921 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/7a5772060/d812baf5abc8448d9b40a73aa87fe406/FLAG958e9a682 [2024-11-28 04:03:45,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/data/7a5772060/d812baf5abc8448d9b40a73aa87fe406 [2024-11-28 04:03:45,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:03:45,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:03:45,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:03:45,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:03:45,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:03:45,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:03:45" (1/1) ... [2024-11-28 04:03:45,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf7dcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:45, skipping insertion in model container [2024-11-28 04:03:45,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:03:45" (1/1) ... [2024-11-28 04:03:46,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:03:46,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:03:46,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:03:46,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:03:46,499 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:03:46,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46 WrapperNode [2024-11-28 04:03:46,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:03:46,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:03:46,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:03:46,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:03:46,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,557 INFO L138 Inliner]: procedures = 120, calls = 58, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 215 [2024-11-28 04:03:46,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:03:46,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:03:46,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:03:46,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:03:46,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,608 INFO L175 MemorySlicer]: Split 35 memory accesses to 2 slices as follows [2, 33]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 14 writes are split as follows [0, 14]. [2024-11-28 04:03:46,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,627 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:03:46,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:03:46,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:03:46,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:03:46,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (1/1) ... [2024-11-28 04:03:46,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:46,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:46,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:03:46,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:03:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 04:03:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 04:03:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:03:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:03:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:03:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:03:46,862 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:03:46,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:03:47,668 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live. [2024-11-28 04:03:47,669 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:03:47,684 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:03:47,684 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-28 04:03:47,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:03:47 BoogieIcfgContainer [2024-11-28 04:03:47,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:03:47,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:03:47,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:03:47,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:03:47,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:03:45" (1/3) ... [2024-11-28 04:03:47,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a41f8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:03:47, skipping insertion in model container [2024-11-28 04:03:47,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:46" (2/3) ... [2024-11-28 04:03:47,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a41f8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:03:47, skipping insertion in model container [2024-11-28 04:03:47,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:03:47" (3/3) ... [2024-11-28 04:03:47,695 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2024-11-28 04:03:47,712 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:03:47,714 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-01-2.i that has 2 procedures, 210 locations, 1 initial locations, 17 loop locations, and 74 error locations. [2024-11-28 04:03:47,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:03:47,803 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=None, 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;@6420f557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:03:47,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2024-11-28 04:03:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 121 states have (on average 2.0578512396694215) internal successors, (249), 195 states have internal predecessors, (249), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 04:03:47,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:03:47,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:47,820 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:03:47,823 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:47,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:47,832 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2024-11-28 04:03:47,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:47,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944057158] [2024-11-28 04:03:47,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:47,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:47,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:47,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:47,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:03:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:47,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:03:47,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:48,011 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 7 [2024-11-28 04:03:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:48,032 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:48,032 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:48,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944057158] [2024-11-28 04:03:48,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944057158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:48,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:48,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:03:48,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440851864] [2024-11-28 04:03:48,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:48,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:48,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:48,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:48,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:48,067 INFO L87 Difference]: Start difference. First operand has 210 states, 121 states have (on average 2.0578512396694215) internal successors, (249), 195 states have internal predecessors, (249), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:48,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:48,560 INFO L93 Difference]: Finished difference Result 187 states and 210 transitions. [2024-11-28 04:03:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:48,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:03:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:48,573 INFO L225 Difference]: With dead ends: 187 [2024-11-28 04:03:48,574 INFO L226 Difference]: Without dead ends: 185 [2024-11-28 04:03:48,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:48,579 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 164 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:48,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 132 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:03:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-28 04:03:48,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-28 04:03:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 108 states have (on average 1.8055555555555556) internal successors, (195), 183 states have internal predecessors, (195), 13 states have call successors, (13), 1 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 208 transitions. [2024-11-28 04:03:48,641 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 208 transitions. Word has length 3 [2024-11-28 04:03:48,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:48,641 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 208 transitions. [2024-11-28 04:03:48,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:48,642 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 208 transitions. [2024-11-28 04:03:48,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:03:48,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:48,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:03:48,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:03:48,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:48,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:48,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:48,847 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2024-11-28 04:03:48,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:48,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192557773] [2024-11-28 04:03:48,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:48,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:48,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:48,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:48,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:03:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:48,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:48,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:48,936 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 [2024-11-28 04:03:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:48,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:48,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:48,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192557773] [2024-11-28 04:03:48,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192557773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:48,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:48,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:03:48,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383526294] [2024-11-28 04:03:48,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:48,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:48,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:48,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:48,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:48,959 INFO L87 Difference]: Start difference. First operand 185 states and 208 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:49,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:49,470 INFO L93 Difference]: Finished difference Result 204 states and 231 transitions. [2024-11-28 04:03:49,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:49,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:03:49,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:49,474 INFO L225 Difference]: With dead ends: 204 [2024-11-28 04:03:49,474 INFO L226 Difference]: Without dead ends: 204 [2024-11-28 04:03:49,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:49,475 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 163 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:49,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 155 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:03:49,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-28 04:03:49,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 194. [2024-11-28 04:03:49,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 125 states have (on average 1.72) internal successors, (215), 192 states have internal predecessors, (215), 13 states have call successors, (13), 1 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:49,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 228 transitions. [2024-11-28 04:03:49,487 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 228 transitions. Word has length 3 [2024-11-28 04:03:49,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:49,487 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 228 transitions. [2024-11-28 04:03:49,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 228 transitions. [2024-11-28 04:03:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 04:03:49,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:49,488 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:49,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:49,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:49,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:49,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:49,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1770869738, now seen corresponding path program 1 times [2024-11-28 04:03:49,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:49,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719976049] [2024-11-28 04:03:49,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:49,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:49,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:49,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:49,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:03:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:49,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:03:49,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:49,804 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:49,804 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719976049] [2024-11-28 04:03:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719976049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:49,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:49,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:49,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118809069] [2024-11-28 04:03:49,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:49,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:49,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:49,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:49,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:49,807 INFO L87 Difference]: Start difference. First operand 194 states and 228 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:49,943 INFO L93 Difference]: Finished difference Result 205 states and 231 transitions. [2024-11-28 04:03:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:49,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 04:03:49,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:49,946 INFO L225 Difference]: With dead ends: 205 [2024-11-28 04:03:49,946 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 04:03:49,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:49,947 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 165 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:49,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 219 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 04:03:49,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 193. [2024-11-28 04:03:49,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 125 states have (on average 1.704) internal successors, (213), 191 states have internal predecessors, (213), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 225 transitions. [2024-11-28 04:03:49,971 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 225 transitions. Word has length 8 [2024-11-28 04:03:49,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:49,972 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 225 transitions. [2024-11-28 04:03:49,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:49,972 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 225 transitions. [2024-11-28 04:03:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:03:49,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:49,973 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:49,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:03:50,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:50,174 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:50,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:50,174 INFO L85 PathProgramCache]: Analyzing trace with hash -957533477, now seen corresponding path program 1 times [2024-11-28 04:03:50,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:50,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481281329] [2024-11-28 04:03:50,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:50,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:50,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:50,177 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:50,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:03:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:50,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:03:50,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:50,281 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 7 [2024-11-28 04:03:50,306 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 19 treesize of output 1 [2024-11-28 04:03:50,343 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 23 treesize of output 11 [2024-11-28 04:03:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:50,357 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:50,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:50,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481281329] [2024-11-28 04:03:50,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481281329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:50,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:50,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:50,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128867345] [2024-11-28 04:03:50,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:50,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:50,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:50,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:50,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:50,359 INFO L87 Difference]: Start difference. First operand 193 states and 225 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:51,023 INFO L93 Difference]: Finished difference Result 192 states and 224 transitions. [2024-11-28 04:03:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:51,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2024-11-28 04:03:51,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:51,025 INFO L225 Difference]: With dead ends: 192 [2024-11-28 04:03:51,025 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 04:03:51,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:03:51,026 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 2 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:51,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 555 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:51,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 04:03:51,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-11-28 04:03:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 125 states have (on average 1.696) internal successors, (212), 190 states have internal predecessors, (212), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2024-11-28 04:03:51,034 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 12 [2024-11-28 04:03:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:51,035 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2024-11-28 04:03:51,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:51,035 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2024-11-28 04:03:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:03:51,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:51,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:51,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:51,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:51,236 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:51,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash -957533476, now seen corresponding path program 1 times [2024-11-28 04:03:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:51,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543316056] [2024-11-28 04:03:51,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:51,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:51,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:51,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:51,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:03:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:51,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:03:51,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:51,336 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 [2024-11-28 04:03:51,378 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 19 treesize of output 1 [2024-11-28 04:03:51,387 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 13 treesize of output 9 [2024-11-28 04:03:51,447 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 21 treesize of output 9 [2024-11-28 04:03:51,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:51,471 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:51,471 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:51,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543316056] [2024-11-28 04:03:51,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543316056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:51,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:51,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:51,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976224537] [2024-11-28 04:03:51,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:51,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:51,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:51,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:51,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:51,473 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:52,112 INFO L93 Difference]: Finished difference Result 191 states and 223 transitions. [2024-11-28 04:03:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:52,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2024-11-28 04:03:52,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:52,113 INFO L225 Difference]: With dead ends: 191 [2024-11-28 04:03:52,113 INFO L226 Difference]: Without dead ends: 191 [2024-11-28 04:03:52,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:03:52,114 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 1 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:52,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 564 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:52,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-28 04:03:52,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-28 04:03:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 125 states have (on average 1.688) internal successors, (211), 189 states have internal predecessors, (211), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 223 transitions. [2024-11-28 04:03:52,124 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 223 transitions. Word has length 12 [2024-11-28 04:03:52,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:52,124 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 223 transitions. [2024-11-28 04:03:52,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 223 transitions. [2024-11-28 04:03:52,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:03:52,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:52,125 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:52,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:52,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:52,325 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:52,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:52,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1138781985, now seen corresponding path program 1 times [2024-11-28 04:03:52,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:52,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140979640] [2024-11-28 04:03:52,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:52,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:52,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:52,328 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:52,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:03:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:52,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:03:52,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:52,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:52,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:52,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140979640] [2024-11-28 04:03:52,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140979640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:52,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:52,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:52,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942820313] [2024-11-28 04:03:52,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:52,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:52,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:52,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:52,422 INFO L87 Difference]: Start difference. First operand 191 states and 223 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:52,435 INFO L93 Difference]: Finished difference Result 192 states and 224 transitions. [2024-11-28 04:03:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:52,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 04:03:52,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:52,437 INFO L225 Difference]: With dead ends: 192 [2024-11-28 04:03:52,437 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 04:03:52,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:52,440 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:52,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:03:52,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 04:03:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-11-28 04:03:52,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 126 states have (on average 1.6825396825396826) internal successors, (212), 190 states have internal predecessors, (212), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2024-11-28 04:03:52,453 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 16 [2024-11-28 04:03:52,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:52,453 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2024-11-28 04:03:52,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2024-11-28 04:03:52,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:03:52,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:52,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:52,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:03:52,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:52,654 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:52,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:52,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1292993571, now seen corresponding path program 1 times [2024-11-28 04:03:52,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:52,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149254303] [2024-11-28 04:03:52,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:52,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:52,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:52,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:52,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:03:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:52,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:03:52,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:52,797 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:03:52,797 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 19 treesize of output 27 [2024-11-28 04:03:52,849 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 19 treesize of output 1 [2024-11-28 04:03:52,979 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:03:52,980 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 44 treesize of output 43 [2024-11-28 04:03:53,021 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 33 treesize of output 15 [2024-11-28 04:03:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:53,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:53,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149254303] [2024-11-28 04:03:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149254303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:53,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:53,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:03:53,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214398890] [2024-11-28 04:03:53,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:53,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:53,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:53,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:53,066 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:53,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:53,972 INFO L93 Difference]: Finished difference Result 191 states and 223 transitions. [2024-11-28 04:03:53,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:53,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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 15 [2024-11-28 04:03:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:53,975 INFO L225 Difference]: With dead ends: 191 [2024-11-28 04:03:53,975 INFO L226 Difference]: Without dead ends: 191 [2024-11-28 04:03:53,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:53,976 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 152 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:53,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 435 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:03:53,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-28 04:03:53,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-28 04:03:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.6746031746031746) internal successors, (211), 189 states have internal predecessors, (211), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:53,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 223 transitions. [2024-11-28 04:03:53,984 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 223 transitions. Word has length 15 [2024-11-28 04:03:53,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:53,984 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 223 transitions. [2024-11-28 04:03:53,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:53,984 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 223 transitions. [2024-11-28 04:03:53,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:03:53,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:53,985 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:54,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:03:54,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:54,186 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:54,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:54,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1292993572, now seen corresponding path program 1 times [2024-11-28 04:03:54,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:54,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773483104] [2024-11-28 04:03:54,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:54,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:54,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:54,188 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:54,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:03:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:54,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:03:54,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:54,323 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 [2024-11-28 04:03:54,337 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:03:54,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:03:54,373 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 13 treesize of output 9 [2024-11-28 04:03:54,387 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 19 treesize of output 1 [2024-11-28 04:03:54,515 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:03:54,515 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 62 treesize of output 57 [2024-11-28 04:03:54,523 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 30 treesize of output 13 [2024-11-28 04:03:54,564 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 31 treesize of output 13 [2024-11-28 04:03:54,574 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 9 treesize of output 3 [2024-11-28 04:03:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:54,596 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:54,596 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:54,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773483104] [2024-11-28 04:03:54,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773483104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:54,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:54,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:03:54,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598175281] [2024-11-28 04:03:54,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:54,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:54,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:54,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:54,598 INFO L87 Difference]: Start difference. First operand 191 states and 223 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:55,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:55,553 INFO L93 Difference]: Finished difference Result 190 states and 222 transitions. [2024-11-28 04:03:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:55,554 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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 15 [2024-11-28 04:03:55,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:55,555 INFO L225 Difference]: With dead ends: 190 [2024-11-28 04:03:55,555 INFO L226 Difference]: Without dead ends: 190 [2024-11-28 04:03:55,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:03:55,555 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 155 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:55,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 417 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:03:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-28 04:03:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-28 04:03:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 126 states have (on average 1.6666666666666667) internal successors, (210), 188 states have internal predecessors, (210), 12 states have call successors, (12), 1 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2024-11-28 04:03:55,561 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 15 [2024-11-28 04:03:55,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:55,561 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2024-11-28 04:03:55,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2024-11-28 04:03:55,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 04:03:55,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:55,562 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:55,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:03:55,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:55,763 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:55,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash 353481414, now seen corresponding path program 1 times [2024-11-28 04:03:55,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:55,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637342500] [2024-11-28 04:03:55,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:55,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:55,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:55,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:55,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:03:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:55,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:03:55,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:55,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:55,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:55,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637342500] [2024-11-28 04:03:55,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637342500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:55,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:55,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:03:55,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811358660] [2024-11-28 04:03:55,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:56,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:56,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:56,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:56,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:56,001 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:56,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:56,770 INFO L93 Difference]: Finished difference Result 270 states and 317 transitions. [2024-11-28 04:03:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:03:56,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-28 04:03:56,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:56,774 INFO L225 Difference]: With dead ends: 270 [2024-11-28 04:03:56,774 INFO L226 Difference]: Without dead ends: 270 [2024-11-28 04:03:56,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:03:56,777 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 83 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:56,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 871 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:03:56,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-28 04:03:56,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 191. [2024-11-28 04:03:56,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 128 states have (on average 1.6484375) internal successors, (211), 189 states have internal predecessors, (211), 11 states have call successors, (11), 1 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:56,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 222 transitions. [2024-11-28 04:03:56,787 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 222 transitions. Word has length 18 [2024-11-28 04:03:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:56,787 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 222 transitions. [2024-11-28 04:03:56,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:56,787 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 222 transitions. [2024-11-28 04:03:56,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 04:03:56,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:56,788 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:56,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:03:56,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:56,992 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:56,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:56,992 INFO L85 PathProgramCache]: Analyzing trace with hash 255817905, now seen corresponding path program 1 times [2024-11-28 04:03:56,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:56,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658550039] [2024-11-28 04:03:56,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:56,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:56,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:56,995 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:56,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:03:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:57,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:03:57,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:57,084 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 7 [2024-11-28 04:03:57,175 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 04:03:57,176 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 21 treesize of output 20 [2024-11-28 04:03:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:57,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:57,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:57,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658550039] [2024-11-28 04:03:57,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658550039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:57,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:57,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:57,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643698117] [2024-11-28 04:03:57,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:57,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:57,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:57,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:57,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:57,182 INFO L87 Difference]: Start difference. First operand 191 states and 222 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:57,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:57,601 INFO L93 Difference]: Finished difference Result 182 states and 213 transitions. [2024-11-28 04:03:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:57,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2024-11-28 04:03:57,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:57,605 INFO L225 Difference]: With dead ends: 182 [2024-11-28 04:03:57,605 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 04:03:57,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:57,606 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 218 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:57,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 126 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:03:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 04:03:57,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-28 04:03:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 131 states have (on average 1.5419847328244274) internal successors, (202), 180 states have internal predecessors, (202), 11 states have call successors, (11), 1 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 213 transitions. [2024-11-28 04:03:57,612 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 213 transitions. Word has length 21 [2024-11-28 04:03:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:57,612 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 213 transitions. [2024-11-28 04:03:57,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 213 transitions. [2024-11-28 04:03:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 04:03:57,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:57,615 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:57,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:03:57,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:57,815 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:57,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash 255817906, now seen corresponding path program 1 times [2024-11-28 04:03:57,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:57,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [394852385] [2024-11-28 04:03:57,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:57,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:57,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:57,818 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:57,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:03:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:57,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:03:57,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:57,910 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 [2024-11-28 04:03:57,916 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 7 [2024-11-28 04:03:58,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:03:58,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2024-11-28 04:03:58,166 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:03:58,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:03:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:58,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:58,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394852385] [2024-11-28 04:03:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394852385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642114570] [2024-11-28 04:03:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:58,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:58,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:58,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:58,181 INFO L87 Difference]: Start difference. First operand 182 states and 213 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:58,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:58,850 INFO L93 Difference]: Finished difference Result 231 states and 263 transitions. [2024-11-28 04:03:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:58,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2024-11-28 04:03:58,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:58,852 INFO L225 Difference]: With dead ends: 231 [2024-11-28 04:03:58,852 INFO L226 Difference]: Without dead ends: 231 [2024-11-28 04:03:58,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:03:58,853 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 255 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:58,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 189 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:58,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-28 04:03:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 207. [2024-11-28 04:03:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 156 states have (on average 1.544871794871795) internal successors, (241), 205 states have internal predecessors, (241), 11 states have call successors, (11), 1 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2024-11-28 04:03:58,861 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 21 [2024-11-28 04:03:58,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:58,861 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2024-11-28 04:03:58,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:58,861 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2024-11-28 04:03:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:03:58,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:58,862 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:58,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:03:59,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:59,063 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:59,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:59,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1973383066, now seen corresponding path program 1 times [2024-11-28 04:03:59,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:59,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012717280] [2024-11-28 04:03:59,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:59,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:59,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:59,065 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:59,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:03:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:59,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:03:59,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:59,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:59,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:59,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012717280] [2024-11-28 04:03:59,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012717280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:59,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:59,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:59,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105181360] [2024-11-28 04:03:59,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:59,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:59,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:59,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:59,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:59,195 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:59,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:59,504 INFO L93 Difference]: Finished difference Result 229 states and 260 transitions. [2024-11-28 04:03:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:59,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-28 04:03:59,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:59,506 INFO L225 Difference]: With dead ends: 229 [2024-11-28 04:03:59,506 INFO L226 Difference]: Without dead ends: 229 [2024-11-28 04:03:59,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:59,507 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 217 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:59,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 290 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:59,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-28 04:03:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 206. [2024-11-28 04:03:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 156 states have (on average 1.5320512820512822) internal successors, (239), 204 states have internal predecessors, (239), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 249 transitions. [2024-11-28 04:03:59,514 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 249 transitions. Word has length 24 [2024-11-28 04:03:59,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:59,515 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 249 transitions. [2024-11-28 04:03:59,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:59,515 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 249 transitions. [2024-11-28 04:03:59,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:03:59,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:59,516 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:59,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:03:59,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:59,717 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:03:59,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1799308198, now seen corresponding path program 1 times [2024-11-28 04:03:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:59,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606618532] [2024-11-28 04:03:59,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:59,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:59,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:59,719 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:59,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:03:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:59,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:03:59,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:59,811 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 7 [2024-11-28 04:03:59,826 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 15 treesize of output 1 [2024-11-28 04:03:59,841 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 19 treesize of output 11 [2024-11-28 04:03:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:59,851 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:59,851 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606618532] [2024-11-28 04:03:59,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606618532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:59,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:59,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:59,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580790344] [2024-11-28 04:03:59,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:59,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:59,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:59,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:59,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:59,852 INFO L87 Difference]: Start difference. First operand 206 states and 249 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:00,352 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2024-11-28 04:04:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:04:00,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-28 04:04:00,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:00,354 INFO L225 Difference]: With dead ends: 205 [2024-11-28 04:04:00,354 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 04:04:00,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:04:00,354 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 4 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:00,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 485 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:04:00,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 04:04:00,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-28 04:04:00,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 156 states have (on average 1.5192307692307692) internal successors, (237), 203 states have internal predecessors, (237), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:00,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 247 transitions. [2024-11-28 04:04:00,360 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 247 transitions. Word has length 24 [2024-11-28 04:04:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:00,360 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 247 transitions. [2024-11-28 04:04:00,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:00,361 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 247 transitions. [2024-11-28 04:04:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:04:00,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:00,361 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:00,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:04:00,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:00,562 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:00,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1799308199, now seen corresponding path program 1 times [2024-11-28 04:04:00,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:00,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056595453] [2024-11-28 04:04:00,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:00,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:00,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:00,564 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:00,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:04:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:00,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:04:00,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:00,667 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 [2024-11-28 04:04:00,685 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 15 treesize of output 1 [2024-11-28 04:04:00,690 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 [2024-11-28 04:04:00,729 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 17 treesize of output 9 [2024-11-28 04:04:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:00,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:00,747 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:00,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056595453] [2024-11-28 04:04:00,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056595453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:00,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:00,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:04:00,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146408655] [2024-11-28 04:04:00,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:00,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:04:00,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:00,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:04:00,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:00,749 INFO L87 Difference]: Start difference. First operand 205 states and 247 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:01,337 INFO L93 Difference]: Finished difference Result 204 states and 245 transitions. [2024-11-28 04:04:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:04:01,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-28 04:04:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:01,339 INFO L225 Difference]: With dead ends: 204 [2024-11-28 04:04:01,339 INFO L226 Difference]: Without dead ends: 204 [2024-11-28 04:04:01,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:04:01,340 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:01,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 474 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:04:01,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-28 04:04:01,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-28 04:04:01,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 156 states have (on average 1.5064102564102564) internal successors, (235), 202 states have internal predecessors, (235), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:01,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 245 transitions. [2024-11-28 04:04:01,345 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 245 transitions. Word has length 24 [2024-11-28 04:04:01,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:01,346 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 245 transitions. [2024-11-28 04:04:01,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 245 transitions. [2024-11-28 04:04:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:04:01,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:01,347 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:01,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:04:01,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:01,547 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:01,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1832108969, now seen corresponding path program 1 times [2024-11-28 04:04:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715586533] [2024-11-28 04:04:01,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:01,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:01,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:01,550 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:01,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:04:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:01,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:04:01,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:01,670 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 7 [2024-11-28 04:04:01,737 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 [2024-11-28 04:04:01,751 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:04:01,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:04:01,782 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 [2024-11-28 04:04:01,790 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 [2024-11-28 04:04:01,893 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:01,894 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 50 treesize of output 45 [2024-11-28 04:04:01,902 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 [2024-11-28 04:04:01,933 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 25 treesize of output 13 [2024-11-28 04:04:01,938 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 [2024-11-28 04:04:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:01,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:01,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:01,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715586533] [2024-11-28 04:04:01,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715586533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:01,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:01,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:04:01,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314117777] [2024-11-28 04:04:01,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:01,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:04:01,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:01,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:04:01,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:01,988 INFO L87 Difference]: Start difference. First operand 204 states and 245 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:03,418 INFO L93 Difference]: Finished difference Result 195 states and 236 transitions. [2024-11-28 04:04:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:04:03,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 28 [2024-11-28 04:04:03,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:03,420 INFO L225 Difference]: With dead ends: 195 [2024-11-28 04:04:03,420 INFO L226 Difference]: Without dead ends: 195 [2024-11-28 04:04:03,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:04:03,420 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 239 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:03,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 507 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:04:03,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-28 04:04:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 185. [2024-11-28 04:04:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 147 states have (on average 1.4625850340136055) internal successors, (215), 183 states have internal predecessors, (215), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:03,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 225 transitions. [2024-11-28 04:04:03,426 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 225 transitions. Word has length 28 [2024-11-28 04:04:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:03,427 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 225 transitions. [2024-11-28 04:04:03,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 225 transitions. [2024-11-28 04:04:03,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:04:03,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:03,428 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:03,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:03,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:03,632 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:03,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:03,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1832108968, now seen corresponding path program 1 times [2024-11-28 04:04:03,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:03,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637033132] [2024-11-28 04:04:03,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:03,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:03,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:03,636 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:03,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:04:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:03,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:04:03,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:03,750 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 7 [2024-11-28 04:04:03,825 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:04:03,826 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 19 treesize of output 27 [2024-11-28 04:04:03,863 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 [2024-11-28 04:04:03,952 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:03,952 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 36 treesize of output 35 [2024-11-28 04:04:03,981 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 27 treesize of output 15 [2024-11-28 04:04:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:04,048 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:04,048 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:04,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637033132] [2024-11-28 04:04:04,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637033132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:04,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:04,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:04:04,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15323084] [2024-11-28 04:04:04,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:04,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:04:04,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:04,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:04:04,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:04,050 INFO L87 Difference]: Start difference. First operand 185 states and 225 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:05,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:05,001 INFO L93 Difference]: Finished difference Result 219 states and 266 transitions. [2024-11-28 04:04:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:04:05,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 28 [2024-11-28 04:04:05,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:05,003 INFO L225 Difference]: With dead ends: 219 [2024-11-28 04:04:05,003 INFO L226 Difference]: Without dead ends: 219 [2024-11-28 04:04:05,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:04:05,004 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 261 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:05,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 436 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:04:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-28 04:04:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 184. [2024-11-28 04:04:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 147 states have (on average 1.4557823129251701) internal successors, (214), 182 states have internal predecessors, (214), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:05,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 224 transitions. [2024-11-28 04:04:05,009 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 224 transitions. Word has length 28 [2024-11-28 04:04:05,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:05,009 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 224 transitions. [2024-11-28 04:04:05,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:05,009 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 224 transitions. [2024-11-28 04:04:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:04:05,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:05,010 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:05,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:05,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:05,210 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:05,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:05,215 INFO L85 PathProgramCache]: Analyzing trace with hash -164942589, now seen corresponding path program 1 times [2024-11-28 04:04:05,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:05,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077214006] [2024-11-28 04:04:05,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:05,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:05,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:05,217 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:05,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:04:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:05,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:04:05,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:05,324 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:05,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:05,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077214006] [2024-11-28 04:04:05,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077214006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:05,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:05,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:05,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566050037] [2024-11-28 04:04:05,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:05,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:05,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:05,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:05,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:05,326 INFO L87 Difference]: Start difference. First operand 184 states and 224 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:05,340 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2024-11-28 04:04:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:05,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-28 04:04:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:05,342 INFO L225 Difference]: With dead ends: 196 [2024-11-28 04:04:05,342 INFO L226 Difference]: Without dead ends: 196 [2024-11-28 04:04:05,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:05,343 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 7 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:05,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 309 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:04:05,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-28 04:04:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 190. [2024-11-28 04:04:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 153 states have (on average 1.4509803921568627) internal successors, (222), 188 states have internal predecessors, (222), 10 states have call successors, (10), 1 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2024-11-28 04:04:05,348 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 31 [2024-11-28 04:04:05,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:05,349 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2024-11-28 04:04:05,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:05,349 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2024-11-28 04:04:05,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:04:05,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:05,350 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:05,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:05,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:05,550 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:05,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:05,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1628418508, now seen corresponding path program 1 times [2024-11-28 04:04:05,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:05,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144320985] [2024-11-28 04:04:05,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:05,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:05,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:05,553 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:05,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:04:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:05,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:04:05,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:05,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 11 [2024-11-28 04:04:05,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 11 [2024-11-28 04:04:05,744 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:04:05,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:04:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:05,751 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:05,751 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:05,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144320985] [2024-11-28 04:04:05,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144320985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:05,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:05,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:05,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673970184] [2024-11-28 04:04:05,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:05,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:04:05,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:05,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:04:05,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:04:05,753 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:06,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:06,035 INFO L93 Difference]: Finished difference Result 193 states and 234 transitions. [2024-11-28 04:04:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:06,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-28 04:04:06,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:06,036 INFO L225 Difference]: With dead ends: 193 [2024-11-28 04:04:06,036 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 04:04:06,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:06,036 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 193 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:06,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 146 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:04:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 04:04:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2024-11-28 04:04:06,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 153 states have (on average 1.4379084967320261) internal successors, (220), 186 states have internal predecessors, (220), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 228 transitions. [2024-11-28 04:04:06,041 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 228 transitions. Word has length 32 [2024-11-28 04:04:06,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:06,041 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 228 transitions. [2024-11-28 04:04:06,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:06,041 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 228 transitions. [2024-11-28 04:04:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:04:06,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:06,042 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:06,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:06,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:06,242 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:06,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:06,243 INFO L85 PathProgramCache]: Analyzing trace with hash -169310624, now seen corresponding path program 1 times [2024-11-28 04:04:06,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:06,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1295637270] [2024-11-28 04:04:06,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:06,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:06,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:06,245 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:06,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:04:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:06,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:04:06,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:06,360 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 [2024-11-28 04:04:06,368 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 [2024-11-28 04:04:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:06,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:06,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:06,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295637270] [2024-11-28 04:04:06,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295637270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:06,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:06,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:04:06,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388175392] [2024-11-28 04:04:06,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:06,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:06,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:06,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:06,537 INFO L87 Difference]: Start difference. First operand 188 states and 228 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:07,229 INFO L93 Difference]: Finished difference Result 283 states and 331 transitions. [2024-11-28 04:04:07,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:04:07,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 31 [2024-11-28 04:04:07,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:07,232 INFO L225 Difference]: With dead ends: 283 [2024-11-28 04:04:07,232 INFO L226 Difference]: Without dead ends: 283 [2024-11-28 04:04:07,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:04:07,232 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 264 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:07,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 686 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:04:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-28 04:04:07,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 203. [2024-11-28 04:04:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 168 states have (on average 1.4047619047619047) internal successors, (236), 201 states have internal predecessors, (236), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 244 transitions. [2024-11-28 04:04:07,238 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 244 transitions. Word has length 31 [2024-11-28 04:04:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:07,239 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 244 transitions. [2024-11-28 04:04:07,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 244 transitions. [2024-11-28 04:04:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:04:07,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:07,240 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:04:07,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:07,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:07,440 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:07,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash -442292435, now seen corresponding path program 1 times [2024-11-28 04:04:07,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:07,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13904124] [2024-11-28 04:04:07,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:07,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:07,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:07,443 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:07,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:04:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:07,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:04:07,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:07,554 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 [2024-11-28 04:04:07,560 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 [2024-11-28 04:04:07,575 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 04:04:07,587 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 27 treesize of output 11 [2024-11-28 04:04:07,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:07,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-28 04:04:07,698 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 21 treesize of output 20 [2024-11-28 04:04:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:08,239 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:08,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:08,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13904124] [2024-11-28 04:04:08,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13904124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:04:08,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:08,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 9 [2024-11-28 04:04:08,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903722257] [2024-11-28 04:04:08,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:08,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:04:08,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:08,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:04:08,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:08,450 INFO L87 Difference]: Start difference. First operand 203 states and 244 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:09,748 INFO L93 Difference]: Finished difference Result 305 states and 364 transitions. [2024-11-28 04:04:09,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:04:09,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 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 34 [2024-11-28 04:04:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:09,750 INFO L225 Difference]: With dead ends: 305 [2024-11-28 04:04:09,750 INFO L226 Difference]: Without dead ends: 305 [2024-11-28 04:04:09,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:04:09,751 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 335 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:09,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 620 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:04:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-28 04:04:09,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 232. [2024-11-28 04:04:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 197 states have (on average 1.416243654822335) internal successors, (279), 230 states have internal predecessors, (279), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 287 transitions. [2024-11-28 04:04:09,759 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 287 transitions. Word has length 34 [2024-11-28 04:04:09,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:09,759 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 287 transitions. [2024-11-28 04:04:09,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:09,760 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 287 transitions. [2024-11-28 04:04:09,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:04:09,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:09,760 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:09,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:09,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:09,961 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:09,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:09,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2036333064, now seen corresponding path program 1 times [2024-11-28 04:04:09,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:09,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503910371] [2024-11-28 04:04:09,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:09,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:09,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:09,965 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:09,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:04:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:10,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:04:10,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:10,079 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 7 [2024-11-28 04:04:10,120 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 [2024-11-28 04:04:10,132 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:04:10,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:04:10,166 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 [2024-11-28 04:04:10,176 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 [2024-11-28 04:04:10,266 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:10,266 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 50 treesize of output 45 [2024-11-28 04:04:10,275 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 [2024-11-28 04:04:10,353 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:10,354 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 50 treesize of output 45 [2024-11-28 04:04:10,364 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 [2024-11-28 04:04:10,605 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 25 treesize of output 13 [2024-11-28 04:04:10,610 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 [2024-11-28 04:04:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:10,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:10,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:10,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503910371] [2024-11-28 04:04:10,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503910371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:10,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:10,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:04:10,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829867731] [2024-11-28 04:04:10,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:10,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:04:10,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:10,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:04:10,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:04:10,669 INFO L87 Difference]: Start difference. First operand 232 states and 287 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:12,419 INFO L93 Difference]: Finished difference Result 302 states and 357 transitions. [2024-11-28 04:04:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:04:12,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 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 36 [2024-11-28 04:04:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:12,421 INFO L225 Difference]: With dead ends: 302 [2024-11-28 04:04:12,421 INFO L226 Difference]: Without dead ends: 302 [2024-11-28 04:04:12,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:04:12,422 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 308 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:12,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 758 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:04:12,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-28 04:04:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 241. [2024-11-28 04:04:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 206 states have (on average 1.4271844660194175) internal successors, (294), 239 states have internal predecessors, (294), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:12,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 302 transitions. [2024-11-28 04:04:12,430 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 302 transitions. Word has length 36 [2024-11-28 04:04:12,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:12,431 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 302 transitions. [2024-11-28 04:04:12,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 302 transitions. [2024-11-28 04:04:12,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:04:12,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:12,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:12,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:12,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:12,632 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:12,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:12,633 INFO L85 PathProgramCache]: Analyzing trace with hash 2036333063, now seen corresponding path program 1 times [2024-11-28 04:04:12,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:12,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142546507] [2024-11-28 04:04:12,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:12,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:12,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:12,635 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:12,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:04:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:12,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:04:12,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:12,750 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 7 [2024-11-28 04:04:12,801 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:04:12,801 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 19 treesize of output 27 [2024-11-28 04:04:12,830 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 [2024-11-28 04:04:12,932 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:12,932 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 36 treesize of output 35 [2024-11-28 04:04:13,006 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:13,006 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 36 treesize of output 35 [2024-11-28 04:04:13,197 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 27 treesize of output 15 [2024-11-28 04:04:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:13,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:13,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:13,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142546507] [2024-11-28 04:04:13,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142546507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:13,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:13,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:04:13,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882287123] [2024-11-28 04:04:13,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:13,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:04:13,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:13,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:04:13,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:04:13,302 INFO L87 Difference]: Start difference. First operand 241 states and 302 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:14,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:14,927 INFO L93 Difference]: Finished difference Result 297 states and 348 transitions. [2024-11-28 04:04:14,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:04:14,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 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 36 [2024-11-28 04:04:14,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:14,929 INFO L225 Difference]: With dead ends: 297 [2024-11-28 04:04:14,929 INFO L226 Difference]: Without dead ends: 297 [2024-11-28 04:04:14,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:04:14,930 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 232 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:14,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 849 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:04:14,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-28 04:04:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 241. [2024-11-28 04:04:14,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 206 states have (on average 1.4029126213592233) internal successors, (289), 239 states have internal predecessors, (289), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 297 transitions. [2024-11-28 04:04:14,937 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 297 transitions. Word has length 36 [2024-11-28 04:04:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:14,937 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 297 transitions. [2024-11-28 04:04:14,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 297 transitions. [2024-11-28 04:04:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 04:04:14,938 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:14,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:14,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:04:15,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:15,138 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:15,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1298117832, now seen corresponding path program 1 times [2024-11-28 04:04:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:15,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [259074075] [2024-11-28 04:04:15,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:15,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:15,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:15,141 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:15,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:04:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:15,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:04:15,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:15,263 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:15,263 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:15,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259074075] [2024-11-28 04:04:15,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259074075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:15,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:15,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:15,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549916842] [2024-11-28 04:04:15,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:15,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:15,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:15,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:15,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:15,264 INFO L87 Difference]: Start difference. First operand 241 states and 297 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:15,299 INFO L93 Difference]: Finished difference Result 240 states and 292 transitions. [2024-11-28 04:04:15,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:15,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-28 04:04:15,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:15,300 INFO L225 Difference]: With dead ends: 240 [2024-11-28 04:04:15,301 INFO L226 Difference]: Without dead ends: 240 [2024-11-28 04:04:15,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:15,301 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 11 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:15,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 275 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:04:15,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-28 04:04:15,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-28 04:04:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 206 states have (on average 1.383495145631068) internal successors, (285), 238 states have internal predecessors, (285), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 292 transitions. [2024-11-28 04:04:15,307 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 292 transitions. Word has length 37 [2024-11-28 04:04:15,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:15,307 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 292 transitions. [2024-11-28 04:04:15,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 292 transitions. [2024-11-28 04:04:15,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:04:15,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:15,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:15,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:04:15,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:15,510 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:15,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1052521886, now seen corresponding path program 1 times [2024-11-28 04:04:15,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:15,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271856431] [2024-11-28 04:04:15,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:15,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:15,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:15,514 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:15,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:04:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:15,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:04:15,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:15,650 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 7 [2024-11-28 04:04:15,663 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 19 treesize of output 1 [2024-11-28 04:04:15,680 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 23 treesize of output 11 [2024-11-28 04:04:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:15,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:15,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:15,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271856431] [2024-11-28 04:04:15,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271856431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:15,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:15,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:04:15,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721910224] [2024-11-28 04:04:15,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:15,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:04:15,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:15,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:04:15,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:15,692 INFO L87 Difference]: Start difference. First operand 240 states and 292 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:16,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:16,147 INFO L93 Difference]: Finished difference Result 239 states and 291 transitions. [2024-11-28 04:04:16,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:04:16,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2024-11-28 04:04:16,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:16,149 INFO L225 Difference]: With dead ends: 239 [2024-11-28 04:04:16,149 INFO L226 Difference]: Without dead ends: 239 [2024-11-28 04:04:16,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:04:16,150 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 2 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:16,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 436 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:04:16,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-28 04:04:16,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2024-11-28 04:04:16,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 206 states have (on average 1.3786407766990292) internal successors, (284), 237 states have internal predecessors, (284), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:16,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 291 transitions. [2024-11-28 04:04:16,155 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 291 transitions. Word has length 38 [2024-11-28 04:04:16,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:16,155 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 291 transitions. [2024-11-28 04:04:16,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:16,156 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 291 transitions. [2024-11-28 04:04:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:04:16,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:16,156 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:16,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:16,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:16,361 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:16,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:16,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1052521885, now seen corresponding path program 1 times [2024-11-28 04:04:16,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:16,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803522515] [2024-11-28 04:04:16,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:16,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:16,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:16,365 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:16,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:04:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:16,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:04:16,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:16,495 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 [2024-11-28 04:04:16,512 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 19 treesize of output 1 [2024-11-28 04:04:16,516 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 13 treesize of output 9 [2024-11-28 04:04:16,541 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 21 treesize of output 9 [2024-11-28 04:04:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:16,554 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:16,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:16,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803522515] [2024-11-28 04:04:16,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803522515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:16,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:16,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:04:16,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479225981] [2024-11-28 04:04:16,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:16,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:04:16,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:16,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:04:16,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:16,556 INFO L87 Difference]: Start difference. First operand 239 states and 291 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:17,033 INFO L93 Difference]: Finished difference Result 238 states and 290 transitions. [2024-11-28 04:04:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:04:17,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2024-11-28 04:04:17,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:17,034 INFO L225 Difference]: With dead ends: 238 [2024-11-28 04:04:17,034 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 04:04:17,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:04:17,035 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:17,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 436 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:04:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 04:04:17,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2024-11-28 04:04:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 206 states have (on average 1.3737864077669903) internal successors, (283), 236 states have internal predecessors, (283), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 290 transitions. [2024-11-28 04:04:17,040 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 290 transitions. Word has length 38 [2024-11-28 04:04:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:17,040 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 290 transitions. [2024-11-28 04:04:17,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 290 transitions. [2024-11-28 04:04:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 04:04:17,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:17,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:17,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:17,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:17,241 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:17,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:17,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2080892474, now seen corresponding path program 1 times [2024-11-28 04:04:17,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:17,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947961752] [2024-11-28 04:04:17,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:17,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:17,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:17,243 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:17,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:04:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:17,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:04:17,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:17,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:04:17,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:17,580 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:17,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947961752] [2024-11-28 04:04:17,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947961752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:17,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:17,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:04:17,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266528266] [2024-11-28 04:04:17,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:17,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:17,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:17,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:17,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:17,581 INFO L87 Difference]: Start difference. First operand 238 states and 290 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:18,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:18,298 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2024-11-28 04:04:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:04:18,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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 39 [2024-11-28 04:04:18,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:18,300 INFO L225 Difference]: With dead ends: 298 [2024-11-28 04:04:18,300 INFO L226 Difference]: Without dead ends: 298 [2024-11-28 04:04:18,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:04:18,301 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 30 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:18,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 762 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:04:18,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-28 04:04:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 283. [2024-11-28 04:04:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 251 states have (on average 1.3585657370517927) internal successors, (341), 281 states have internal predecessors, (341), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 348 transitions. [2024-11-28 04:04:18,307 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 348 transitions. Word has length 39 [2024-11-28 04:04:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:18,307 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 348 transitions. [2024-11-28 04:04:18,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 348 transitions. [2024-11-28 04:04:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:04:18,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:18,308 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:18,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:04:18,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:18,508 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:18,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:18,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1975151208, now seen corresponding path program 1 times [2024-11-28 04:04:18,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:18,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693580275] [2024-11-28 04:04:18,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:18,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:18,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:18,511 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:18,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:04:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:18,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:04:18,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:18,698 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 7 [2024-11-28 04:04:18,741 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:04:18,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:04:18,760 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 [2024-11-28 04:04:18,817 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:18,817 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 25 treesize of output 26 [2024-11-28 04:04:18,882 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2024-11-28 04:04:18,882 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 59 treesize of output 45 [2024-11-28 04:04:18,889 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2024-11-28 04:04:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:19,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:19,480 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:19,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693580275] [2024-11-28 04:04:19,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693580275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:19,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:19,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:04:19,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928606674] [2024-11-28 04:04:19,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:19,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:04:19,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:19,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:04:19,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:04:19,483 INFO L87 Difference]: Start difference. First operand 283 states and 348 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:24,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:04:28,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:04:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:30,471 INFO L93 Difference]: Finished difference Result 343 states and 402 transitions. [2024-11-28 04:04:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:04:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-28 04:04:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:30,473 INFO L225 Difference]: With dead ends: 343 [2024-11-28 04:04:30,473 INFO L226 Difference]: Without dead ends: 343 [2024-11-28 04:04:30,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:04:30,474 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 298 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:30,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1022 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 754 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-28 04:04:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-28 04:04:30,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 283. [2024-11-28 04:04:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 251 states have (on average 1.350597609561753) internal successors, (339), 281 states have internal predecessors, (339), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2024-11-28 04:04:30,479 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 40 [2024-11-28 04:04:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:30,480 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2024-11-28 04:04:30,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2024-11-28 04:04:30,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:04:30,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:30,481 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:30,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:04:30,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:30,681 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:30,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash -11833437, now seen corresponding path program 1 times [2024-11-28 04:04:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:30,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033303676] [2024-11-28 04:04:30,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:30,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:30,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:30,683 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:30,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:04:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:30,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:04:30,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:04:30,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:30,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:30,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033303676] [2024-11-28 04:04:30,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033303676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:30,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:30,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:04:30,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238060767] [2024-11-28 04:04:30,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:30,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:30,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:30,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:30,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:30,872 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:31,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:31,018 INFO L93 Difference]: Finished difference Result 292 states and 350 transitions. [2024-11-28 04:04:31,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:31,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2024-11-28 04:04:31,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:31,021 INFO L225 Difference]: With dead ends: 292 [2024-11-28 04:04:31,021 INFO L226 Difference]: Without dead ends: 292 [2024-11-28 04:04:31,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:31,021 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 94 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:31,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 157 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:04:31,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-28 04:04:31,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 284. [2024-11-28 04:04:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 252 states have (on average 1.3492063492063493) internal successors, (340), 282 states have internal predecessors, (340), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 347 transitions. [2024-11-28 04:04:31,027 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 347 transitions. Word has length 40 [2024-11-28 04:04:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:31,027 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 347 transitions. [2024-11-28 04:04:31,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 347 transitions. [2024-11-28 04:04:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:04:31,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:31,028 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:31,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 04:04:31,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:31,229 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:31,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:31,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1876878206, now seen corresponding path program 1 times [2024-11-28 04:04:31,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:31,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958066698] [2024-11-28 04:04:31,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:31,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:31,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:31,232 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:31,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:04:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:31,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:04:31,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:31,419 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:04:31,419 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 19 treesize of output 27 [2024-11-28 04:04:31,448 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 19 treesize of output 1 [2024-11-28 04:04:31,552 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:04:31,552 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 44 treesize of output 43 [2024-11-28 04:04:31,573 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 33 treesize of output 15 [2024-11-28 04:04:31,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:31,596 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:31,596 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:31,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958066698] [2024-11-28 04:04:31,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958066698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:31,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:31,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:04:31,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388879056] [2024-11-28 04:04:31,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:31,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:31,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:31,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:31,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:31,601 INFO L87 Difference]: Start difference. First operand 284 states and 347 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:32,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:32,127 INFO L93 Difference]: Finished difference Result 285 states and 348 transitions. [2024-11-28 04:04:32,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:04:32,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2024-11-28 04:04:32,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:32,129 INFO L225 Difference]: With dead ends: 285 [2024-11-28 04:04:32,129 INFO L226 Difference]: Without dead ends: 285 [2024-11-28 04:04:32,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:04:32,129 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 60 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:32,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 344 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:04:32,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-28 04:04:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283. [2024-11-28 04:04:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 252 states have (on average 1.3452380952380953) internal successors, (339), 281 states have internal predecessors, (339), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2024-11-28 04:04:32,138 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 41 [2024-11-28 04:04:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:32,138 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2024-11-28 04:04:32,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:32,138 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2024-11-28 04:04:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:04:32,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:32,139 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:32,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:32,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:32,339 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:32,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1876878207, now seen corresponding path program 1 times [2024-11-28 04:04:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:32,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923997722] [2024-11-28 04:04:32,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:32,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:32,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:32,341 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:32,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:04:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:32,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:04:32,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:32,486 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 7 [2024-11-28 04:04:32,547 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:04:32,547 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 19 treesize of output 27 [2024-11-28 04:04:32,590 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 [2024-11-28 04:04:32,682 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:32,682 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 36 treesize of output 35 [2024-11-28 04:04:32,707 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 27 treesize of output 15 [2024-11-28 04:04:32,819 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 [2024-11-28 04:04:32,843 INFO L349 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2024-11-28 04:04:32,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-28 04:04:32,873 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 13 treesize of output 9 [2024-11-28 04:04:32,880 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 19 treesize of output 1 [2024-11-28 04:04:32,987 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:04:32,987 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 62 treesize of output 57 [2024-11-28 04:04:32,995 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 30 treesize of output 13 [2024-11-28 04:04:33,018 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 31 treesize of output 13 [2024-11-28 04:04:33,024 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 9 treesize of output 3 [2024-11-28 04:04:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:33,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:33,045 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923997722] [2024-11-28 04:04:33,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923997722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:33,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:33,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:04:33,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676269578] [2024-11-28 04:04:33,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:33,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:04:33,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:33,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:04:33,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:04:33,047 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:34,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:34,721 INFO L93 Difference]: Finished difference Result 292 states and 349 transitions. [2024-11-28 04:04:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:04:34,722 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 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 41 [2024-11-28 04:04:34,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:34,723 INFO L225 Difference]: With dead ends: 292 [2024-11-28 04:04:34,723 INFO L226 Difference]: Without dead ends: 292 [2024-11-28 04:04:34,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:04:34,724 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 233 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:34,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 773 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:04:34,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-28 04:04:34,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 282. [2024-11-28 04:04:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 252 states have (on average 1.3412698412698412) internal successors, (338), 280 states have internal predecessors, (338), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 345 transitions. [2024-11-28 04:04:34,730 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 345 transitions. Word has length 41 [2024-11-28 04:04:34,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:34,730 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 345 transitions. [2024-11-28 04:04:34,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:34,730 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 345 transitions. [2024-11-28 04:04:34,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:04:34,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:34,731 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:34,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 04:04:34,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:34,931 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:34,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2059213292, now seen corresponding path program 1 times [2024-11-28 04:04:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:34,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017078229] [2024-11-28 04:04:34,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:34,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:34,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:34,934 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:34,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:04:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:35,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:04:35,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:35,071 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:35,071 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017078229] [2024-11-28 04:04:35,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017078229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:35,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:35,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:35,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425731872] [2024-11-28 04:04:35,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:35,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:35,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:35,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:35,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:35,072 INFO L87 Difference]: Start difference. First operand 282 states and 345 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:35,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:35,081 INFO L93 Difference]: Finished difference Result 283 states and 346 transitions. [2024-11-28 04:04:35,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:35,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-28 04:04:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:35,082 INFO L225 Difference]: With dead ends: 283 [2024-11-28 04:04:35,082 INFO L226 Difference]: Without dead ends: 283 [2024-11-28 04:04:35,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:35,083 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:35,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 294 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:04:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-28 04:04:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2024-11-28 04:04:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 253 states have (on average 1.3399209486166008) internal successors, (339), 281 states have internal predecessors, (339), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:35,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2024-11-28 04:04:35,088 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 42 [2024-11-28 04:04:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:35,088 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2024-11-28 04:04:35,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2024-11-28 04:04:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:04:35,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:35,089 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:35,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:35,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:35,293 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:35,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash -705776026, now seen corresponding path program 1 times [2024-11-28 04:04:35,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:35,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740282819] [2024-11-28 04:04:35,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:35,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:35,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:35,295 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:35,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:04:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:35,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:04:35,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:35,441 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 7 [2024-11-28 04:04:35,484 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:04:35,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:04:35,510 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 [2024-11-28 04:04:35,516 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 [2024-11-28 04:04:35,587 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2024-11-28 04:04:35,596 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 27 treesize of output 22 [2024-11-28 04:04:35,741 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2024-11-28 04:04:35,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 58 [2024-11-28 04:04:35,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 25 [2024-11-28 04:04:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:36,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:36,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:36,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740282819] [2024-11-28 04:04:36,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740282819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:36,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:36,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:04:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399080912] [2024-11-28 04:04:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:36,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:04:36,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:36,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:04:36,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:04:36,424 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:38,611 INFO L93 Difference]: Finished difference Result 342 states and 399 transitions. [2024-11-28 04:04:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:04:38,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-28 04:04:38,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:38,613 INFO L225 Difference]: With dead ends: 342 [2024-11-28 04:04:38,613 INFO L226 Difference]: Without dead ends: 342 [2024-11-28 04:04:38,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:04:38,614 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 367 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:38,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 910 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:04:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-28 04:04:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 283. [2024-11-28 04:04:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 253 states have (on average 1.33201581027668) internal successors, (337), 281 states have internal predecessors, (337), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 344 transitions. [2024-11-28 04:04:38,621 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 344 transitions. Word has length 43 [2024-11-28 04:04:38,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:38,621 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 344 transitions. [2024-11-28 04:04:38,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 344 transitions. [2024-11-28 04:04:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:04:38,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:38,622 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:38,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:04:38,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:38,823 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:38,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash 243099665, now seen corresponding path program 1 times [2024-11-28 04:04:38,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:38,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396880683] [2024-11-28 04:04:38,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:38,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:38,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:38,825 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:38,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:04:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:38,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:04:38,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:39,084 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:39,084 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:39,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396880683] [2024-11-28 04:04:39,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396880683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:39,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:04:39,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763407848] [2024-11-28 04:04:39,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:39,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:39,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:39,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:39,085 INFO L87 Difference]: Start difference. First operand 283 states and 344 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:39,733 INFO L93 Difference]: Finished difference Result 294 states and 355 transitions. [2024-11-28 04:04:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:04:39,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-28 04:04:39,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:39,734 INFO L225 Difference]: With dead ends: 294 [2024-11-28 04:04:39,734 INFO L226 Difference]: Without dead ends: 294 [2024-11-28 04:04:39,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:04:39,735 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 13 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:39,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 701 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:04:39,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-28 04:04:39,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 284. [2024-11-28 04:04:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 255 states have (on average 1.3254901960784313) internal successors, (338), 282 states have internal predecessors, (338), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 344 transitions. [2024-11-28 04:04:39,740 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 344 transitions. Word has length 44 [2024-11-28 04:04:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:39,740 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 344 transitions. [2024-11-28 04:04:39,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 344 transitions. [2024-11-28 04:04:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:04:39,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:39,741 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:04:39,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:04:39,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:39,942 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:39,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:39,942 INFO L85 PathProgramCache]: Analyzing trace with hash -342103010, now seen corresponding path program 1 times [2024-11-28 04:04:39,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:39,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221034831] [2024-11-28 04:04:39,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:39,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:39,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:39,944 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:39,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:04:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:40,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:04:40,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:40,072 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 8 treesize of output 1 [2024-11-28 04:04:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:40,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:40,409 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-28 04:04:40,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2024-11-28 04:04:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:40,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:40,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221034831] [2024-11-28 04:04:40,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221034831] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:04:40,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:40,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2024-11-28 04:04:40,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920347659] [2024-11-28 04:04:40,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:40,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:04:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:40,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:04:40,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:04:40,539 INFO L87 Difference]: Start difference. First operand 284 states and 344 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:41,895 INFO L93 Difference]: Finished difference Result 377 states and 443 transitions. [2024-11-28 04:04:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:04:41,895 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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 43 [2024-11-28 04:04:41,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:41,896 INFO L225 Difference]: With dead ends: 377 [2024-11-28 04:04:41,897 INFO L226 Difference]: Without dead ends: 377 [2024-11-28 04:04:41,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:04:41,897 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 421 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:41,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 925 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:04:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-28 04:04:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 308. [2024-11-28 04:04:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 279 states have (on average 1.3369175627240144) internal successors, (373), 306 states have internal predecessors, (373), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:41,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 379 transitions. [2024-11-28 04:04:41,903 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 379 transitions. Word has length 43 [2024-11-28 04:04:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:41,903 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 379 transitions. [2024-11-28 04:04:41,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 379 transitions. [2024-11-28 04:04:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:04:41,904 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:41,904 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:41,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:04:42,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:42,104 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:42,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2015253368, now seen corresponding path program 1 times [2024-11-28 04:04:42,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:42,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143675214] [2024-11-28 04:04:42,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:42,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:42,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:42,107 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:42,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:04:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:42,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:04:42,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:42,427 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~list~0#1.base_49| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~list~0#1.base_49| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~list~0#1.base_49|)))) is different from true [2024-11-28 04:04:42,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2024-11-28 04:04:42,436 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:04:42,626 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:42,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143675214] [2024-11-28 04:04:42,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143675214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:04:42,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:42,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2024-11-28 04:04:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459882372] [2024-11-28 04:04:42,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:42,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:04:42,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:42,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:04:42,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-28 04:04:42,627 INFO L87 Difference]: Start difference. First operand 308 states and 379 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:42,984 INFO L93 Difference]: Finished difference Result 326 states and 396 transitions. [2024-11-28 04:04:42,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:04:42,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 44 [2024-11-28 04:04:42,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:42,986 INFO L225 Difference]: With dead ends: 326 [2024-11-28 04:04:42,986 INFO L226 Difference]: Without dead ends: 301 [2024-11-28 04:04:42,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2024-11-28 04:04:42,987 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:42,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 316 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 182 Unchecked, 0.3s Time] [2024-11-28 04:04:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-28 04:04:42,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2024-11-28 04:04:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 271 states have (on average 1.3431734317343174) internal successors, (364), 298 states have internal predecessors, (364), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 370 transitions. [2024-11-28 04:04:42,991 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 370 transitions. Word has length 44 [2024-11-28 04:04:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:42,992 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 370 transitions. [2024-11-28 04:04:42,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:42,992 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 370 transitions. [2024-11-28 04:04:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:04:42,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:42,993 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:43,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:04:43,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:43,193 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:43,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:43,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1422563986, now seen corresponding path program 1 times [2024-11-28 04:04:43,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:43,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910541415] [2024-11-28 04:04:43,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:43,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:43,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:43,195 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:43,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:04:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:43,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:04:43,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:43,543 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 25 treesize of output 17 [2024-11-28 04:04:43,545 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 21 treesize of output 13 [2024-11-28 04:04:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:43,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:43,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:43,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910541415] [2024-11-28 04:04:43,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910541415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:43,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:43,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:04:43,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106393993] [2024-11-28 04:04:43,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:43,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:04:43,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:43,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:04:43,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:43,577 INFO L87 Difference]: Start difference. First operand 300 states and 370 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:44,705 INFO L93 Difference]: Finished difference Result 347 states and 411 transitions. [2024-11-28 04:04:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:04:44,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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 44 [2024-11-28 04:04:44,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:44,706 INFO L225 Difference]: With dead ends: 347 [2024-11-28 04:04:44,706 INFO L226 Difference]: Without dead ends: 347 [2024-11-28 04:04:44,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:04:44,707 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 234 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:44,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 728 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:04:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-28 04:04:44,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 299. [2024-11-28 04:04:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 270 states have (on average 1.3407407407407408) internal successors, (362), 297 states have internal predecessors, (362), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 368 transitions. [2024-11-28 04:04:44,715 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 368 transitions. Word has length 44 [2024-11-28 04:04:44,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:44,715 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 368 transitions. [2024-11-28 04:04:44,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 368 transitions. [2024-11-28 04:04:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 04:04:44,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:44,716 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:44,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:04:44,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:44,916 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:44,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1264357658, now seen corresponding path program 1 times [2024-11-28 04:04:44,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:44,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111945170] [2024-11-28 04:04:44,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:44,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:44,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:44,919 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:44,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:04:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:45,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:04:45,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:45,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:45,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:45,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111945170] [2024-11-28 04:04:45,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111945170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:45,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:45,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:04:45,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483236582] [2024-11-28 04:04:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:45,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:04:45,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:45,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:04:45,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:45,086 INFO L87 Difference]: Start difference. First operand 299 states and 368 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:45,102 INFO L93 Difference]: Finished difference Result 372 states and 467 transitions. [2024-11-28 04:04:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:04:45,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-28 04:04:45,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:45,104 INFO L225 Difference]: With dead ends: 372 [2024-11-28 04:04:45,104 INFO L226 Difference]: Without dead ends: 372 [2024-11-28 04:04:45,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:04:45,104 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 13 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:45,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 306 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:04:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-28 04:04:45,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 348. [2024-11-28 04:04:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 319 states have (on average 1.3887147335423198) internal successors, (443), 346 states have internal predecessors, (443), 6 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:45,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 449 transitions. [2024-11-28 04:04:45,110 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 449 transitions. Word has length 48 [2024-11-28 04:04:45,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:45,111 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 449 transitions. [2024-11-28 04:04:45,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 449 transitions. [2024-11-28 04:04:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 04:04:45,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:45,112 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] [2024-11-28 04:04:45,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:45,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:45,312 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:45,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1268666111, now seen corresponding path program 1 times [2024-11-28 04:04:45,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:45,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821970549] [2024-11-28 04:04:45,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:45,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:45,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:45,315 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:45,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:04:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:45,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:04:45,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:45,554 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:45,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:45,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821970549] [2024-11-28 04:04:45,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821970549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:45,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:45,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:04:45,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041147480] [2024-11-28 04:04:45,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:45,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:04:45,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:45,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:04:45,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:04:45,555 INFO L87 Difference]: Start difference. First operand 348 states and 449 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:45,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:45,904 INFO L93 Difference]: Finished difference Result 273 states and 318 transitions. [2024-11-28 04:04:45,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:04:45,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2024-11-28 04:04:45,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:45,906 INFO L225 Difference]: With dead ends: 273 [2024-11-28 04:04:45,906 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 04:04:45,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:04:45,906 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:45,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 591 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:04:45,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 04:04:45,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-28 04:04:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 245 states have (on average 1.2775510204081633) internal successors, (313), 271 states have internal predecessors, (313), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:45,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 318 transitions. [2024-11-28 04:04:45,910 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 318 transitions. Word has length 48 [2024-11-28 04:04:45,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:45,910 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 318 transitions. [2024-11-28 04:04:45,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:45,911 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 318 transitions. [2024-11-28 04:04:45,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:04:45,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:45,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:45,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:04:46,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:46,112 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:46,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:46,112 INFO L85 PathProgramCache]: Analyzing trace with hash -320045563, now seen corresponding path program 1 times [2024-11-28 04:04:46,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:46,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481381342] [2024-11-28 04:04:46,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:46,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:46,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:46,116 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:46,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:04:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:46,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:04:46,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:46,294 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-28 04:04:46,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-11-28 04:04:46,365 INFO L349 Elim1Store]: treesize reduction 34, result has 26.1 percent of original size [2024-11-28 04:04:46,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 34 [2024-11-28 04:04:46,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:04:46,526 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:04:46,527 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 41 treesize of output 40 [2024-11-28 04:04:46,621 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:04:46,621 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 54 treesize of output 51 [2024-11-28 04:04:46,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:46,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 28 [2024-11-28 04:04:46,787 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 30 treesize of output 12 [2024-11-28 04:04:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:04:46,817 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:46,817 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481381342] [2024-11-28 04:04:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481381342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:46,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:46,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:04:46,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478817749] [2024-11-28 04:04:46,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:46,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:04:46,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:46,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:04:46,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:04:46,818 INFO L87 Difference]: Start difference. First operand 273 states and 318 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:48,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:48,094 INFO L93 Difference]: Finished difference Result 298 states and 345 transitions. [2024-11-28 04:04:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:04:48,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 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 51 [2024-11-28 04:04:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:48,095 INFO L225 Difference]: With dead ends: 298 [2024-11-28 04:04:48,095 INFO L226 Difference]: Without dead ends: 269 [2024-11-28 04:04:48,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:04:48,096 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 467 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:48,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 538 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:04:48,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-28 04:04:48,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 242. [2024-11-28 04:04:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 214 states have (on average 1.308411214953271) internal successors, (280), 240 states have internal predecessors, (280), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:48,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 285 transitions. [2024-11-28 04:04:48,100 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 285 transitions. Word has length 51 [2024-11-28 04:04:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:48,100 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 285 transitions. [2024-11-28 04:04:48,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:48,100 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 285 transitions. [2024-11-28 04:04:48,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:04:48,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:48,101 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:04:48,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:48,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:48,301 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:48,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:48,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1972076818, now seen corresponding path program 1 times [2024-11-28 04:04:48,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:48,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [776125906] [2024-11-28 04:04:48,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:48,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:48,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:48,304 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:48,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:04:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:48,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:04:48,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:48,491 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 7 [2024-11-28 04:04:48,542 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 [2024-11-28 04:04:48,549 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 [2024-11-28 04:04:48,745 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:04:48,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:04:48,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:04:48,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:04:48,938 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:48,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 48 treesize of output 43 [2024-11-28 04:04:48,947 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 [2024-11-28 04:04:49,096 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:04:49,096 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 22 [2024-11-28 04:04:49,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:04:49,110 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 16 treesize of output 11 [2024-11-28 04:04:49,219 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:04:49,220 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 48 treesize of output 43 [2024-11-28 04:04:49,227 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 [2024-11-28 04:04:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:49,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:49,654 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1297 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1297) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) (_ bv0 32))) (forall ((v_ArrVal_1298 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1298) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))))) is different from false [2024-11-28 04:04:49,936 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1294 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1297 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1294) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1293) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1297) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (forall ((v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1298 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1293))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1298)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))))) is different from false [2024-11-28 04:04:49,962 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1298 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_1293))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1298)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (forall ((v_ArrVal_1294 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1297 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_1294) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_1293) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1297) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))))) is different from false [2024-11-28 04:04:50,019 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|))) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1298 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (let ((.cse0 (store .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1293))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1298)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (forall ((v_ArrVal_1294 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1297 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32))) (= (_ bv0 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1294) (select (select (store .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1293) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1297) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))))) is different from false [2024-11-28 04:04:50,812 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:50,813 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 41 [2024-11-28 04:04:50,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:50,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 88 [2024-11-28 04:04:50,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:50,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-11-28 04:04:50,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 7 [2024-11-28 04:04:50,853 INFO L349 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2024-11-28 04:04:50,853 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 1 [2024-11-28 04:04:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:50,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776125906] [2024-11-28 04:04:50,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776125906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:04:50,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:50,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2024-11-28 04:04:50,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969166805] [2024-11-28 04:04:50,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:50,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:04:50,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:50,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:04:50,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=327, Unknown=30, NotChecked=164, Total=600 [2024-11-28 04:04:50,917 INFO L87 Difference]: Start difference. First operand 242 states and 285 transitions. Second operand has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:55,451 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|)) (.cse5 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|))) (let ((.cse1 (select .cse5 |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse4 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse7 (bvadd |c_ULTIMATE.start_main_~end~0#1.offset| (_ bv8 32))) (.cse3 (select .cse8 (_ bv0 32)))) (and (forall ((v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1298 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_1293))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1298)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (forall ((v_ArrVal_1294 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1297 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_1294) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_1293) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1297) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (not (= |c_ULTIMATE.start_main_~list~0#1.base| .cse3)) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_14| (_ BitVec 32))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_14|) (_ bv0 1))) (forall ((v_ArrVal_1294 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1297 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32))) (= (_ bv0 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_14| v_ArrVal_1294) (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_14|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_14| v_ArrVal_1293) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1297) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|))) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_14| (_ BitVec 32))) (or (forall ((v_ArrVal_1293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1298 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (select (let ((.cse6 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_14|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_14| v_ArrVal_1293))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1298)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_14|) (_ bv0 1))))) (= (_ bv0 32) (select .cse5 .cse7)) (= (_ bv0 32) (select .cse4 .cse7)) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse3) (= (_ bv0 32) |c_ULTIMATE.start_main_~list~0#1.offset|) (= (select .cse8 (_ bv8 32)) (_ bv0 32)) (= (_ bv0 32) (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base|) (_ bv8 32)))))) is different from false [2024-11-28 04:04:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:58,450 INFO L93 Difference]: Finished difference Result 755 states and 896 transitions. [2024-11-28 04:04:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 04:04:58,451 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 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 56 [2024-11-28 04:04:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:58,453 INFO L225 Difference]: With dead ends: 755 [2024-11-28 04:04:58,453 INFO L226 Difference]: Without dead ends: 755 [2024-11-28 04:04:58,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=329, Invalid=1187, Unknown=64, NotChecked=400, Total=1980 [2024-11-28 04:04:58,453 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 693 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 44 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 2397 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:58,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1695 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1324 Invalid, 45 Unknown, 2397 Unchecked, 5.6s Time] [2024-11-28 04:04:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-28 04:04:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 317. [2024-11-28 04:04:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 289 states have (on average 1.245674740484429) internal successors, (360), 315 states have internal predecessors, (360), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 365 transitions. [2024-11-28 04:04:58,458 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 365 transitions. Word has length 56 [2024-11-28 04:04:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:58,458 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 365 transitions. [2024-11-28 04:04:58,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 365 transitions. [2024-11-28 04:04:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:04:58,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:58,459 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:58,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:58,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:58,661 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:04:58,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash 592300201, now seen corresponding path program 1 times [2024-11-28 04:04:58,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:58,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223949736] [2024-11-28 04:04:58,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:58,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:58,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:58,664 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:58,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:04:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:58,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:04:58,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:59,612 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 38 treesize of output 26 [2024-11-28 04:04:59,615 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 58 treesize of output 30 [2024-11-28 04:04:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:59,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:00,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:00,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 58 [2024-11-28 04:05:01,599 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-28 04:05:01,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 60 [2024-11-28 04:05:01,620 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-28 04:05:01,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 26 [2024-11-28 04:05:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:01,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223949736] [2024-11-28 04:05:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223949736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:01,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:05:01,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2024-11-28 04:05:01,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071475725] [2024-11-28 04:05:01,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:01,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:05:01,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:01,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:05:01,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:05:01,693 INFO L87 Difference]: Start difference. First operand 317 states and 365 transitions. Second operand has 17 states, 16 states have (on average 6.9375) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:05,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:05,933 INFO L93 Difference]: Finished difference Result 422 states and 476 transitions. [2024-11-28 04:05:05,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:05:05,935 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.9375) internal successors, (111), 17 states have internal predecessors, (111), 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 56 [2024-11-28 04:05:05,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:05,935 INFO L225 Difference]: With dead ends: 422 [2024-11-28 04:05:05,935 INFO L226 Difference]: Without dead ends: 422 [2024-11-28 04:05:05,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=185, Invalid=627, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:05:05,936 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 428 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:05,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 843 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:05:05,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-28 04:05:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 364. [2024-11-28 04:05:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 336 states have (on average 1.2738095238095237) internal successors, (428), 362 states have internal predecessors, (428), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 433 transitions. [2024-11-28 04:05:05,941 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 433 transitions. Word has length 56 [2024-11-28 04:05:05,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:05,941 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 433 transitions. [2024-11-28 04:05:05,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.9375) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:05,941 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 433 transitions. [2024-11-28 04:05:05,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:05:05,942 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:05,942 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:05,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:06,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:06,143 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:05:06,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:06,143 INFO L85 PathProgramCache]: Analyzing trace with hash 592300200, now seen corresponding path program 1 times [2024-11-28 04:05:06,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:06,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626933422] [2024-11-28 04:05:06,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:06,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:06,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:06,145 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:06,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:05:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:06,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:05:06,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:06,577 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 19 treesize of output 11 [2024-11-28 04:05:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:06,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:06,703 INFO L349 Elim1Store]: treesize reduction 7, result has 56.3 percent of original size [2024-11-28 04:05:06,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2024-11-28 04:05:06,775 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-28 04:05:06,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 04:05:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:06,821 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:06,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626933422] [2024-11-28 04:05:06,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626933422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:06,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:05:06,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2024-11-28 04:05:06,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874857127] [2024-11-28 04:05:06,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:06,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:05:06,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:06,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:05:06,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:05:06,823 INFO L87 Difference]: Start difference. First operand 364 states and 433 transitions. Second operand has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:08,855 INFO L93 Difference]: Finished difference Result 417 states and 468 transitions. [2024-11-28 04:05:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:05:08,856 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 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 56 [2024-11-28 04:05:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:08,857 INFO L225 Difference]: With dead ends: 417 [2024-11-28 04:05:08,857 INFO L226 Difference]: Without dead ends: 417 [2024-11-28 04:05:08,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:05:08,857 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 304 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:08,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 913 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:05:08,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-28 04:05:08,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 364. [2024-11-28 04:05:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 336 states have (on average 1.2619047619047619) internal successors, (424), 362 states have internal predecessors, (424), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:08,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 429 transitions. [2024-11-28 04:05:08,863 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 429 transitions. Word has length 56 [2024-11-28 04:05:08,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:08,864 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 429 transitions. [2024-11-28 04:05:08,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:08,864 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 429 transitions. [2024-11-28 04:05:08,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:05:08,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:08,865 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] [2024-11-28 04:05:08,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-28 04:05:09,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:09,066 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:05:09,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:09,066 INFO L85 PathProgramCache]: Analyzing trace with hash 481744699, now seen corresponding path program 1 times [2024-11-28 04:05:09,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:09,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421202222] [2024-11-28 04:05:09,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:09,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:09,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:09,070 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:09,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:05:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:09,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:05:09,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:09,243 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 7 [2024-11-28 04:05:09,361 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:05:09,361 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 19 treesize of output 27 [2024-11-28 04:05:09,426 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 [2024-11-28 04:05:09,590 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:05:09,590 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 36 treesize of output 35 [2024-11-28 04:05:09,739 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:05:09,739 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2024-11-28 04:05:09,869 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:05:09,869 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 36 treesize of output 35 [2024-11-28 04:05:10,103 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 27 treesize of output 15 [2024-11-28 04:05:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:10,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:10,325 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1418 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1418) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:05:10,361 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1418 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1418) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:05:10,429 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1418 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1416 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1416))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1418)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:05:10,438 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1418 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1416 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1416))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1418)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:05:10,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:10,455 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 33 [2024-11-28 04:05:10,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:10,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 139 [2024-11-28 04:05:10,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 88 treesize of output 84 [2024-11-28 04:05:10,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:10,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 82 [2024-11-28 04:05:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:30,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421202222] [2024-11-28 04:05:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421202222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:30,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:05:30,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2024-11-28 04:05:30,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96619879] [2024-11-28 04:05:30,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:30,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:05:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:30,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:05:30,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=321, Unknown=14, NotChecked=164, Total=600 [2024-11-28 04:05:30,118 INFO L87 Difference]: Start difference. First operand 364 states and 429 transitions. Second operand has 25 states, 24 states have (on average 4.875) internal successors, (117), 25 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:37,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:37,371 INFO L93 Difference]: Finished difference Result 619 states and 731 transitions. [2024-11-28 04:05:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:05:37,371 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.875) internal successors, (117), 25 states have internal predecessors, (117), 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 59 [2024-11-28 04:05:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:37,373 INFO L225 Difference]: With dead ends: 619 [2024-11-28 04:05:37,373 INFO L226 Difference]: Without dead ends: 619 [2024-11-28 04:05:37,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 93 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=16, NotChecked=204, Total=870 [2024-11-28 04:05:37,374 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 577 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1452 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:37,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1109 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1257 Invalid, 0 Unknown, 1452 Unchecked, 3.0s Time] [2024-11-28 04:05:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-28 04:05:37,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 431. [2024-11-28 04:05:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 403 states have (on average 1.248138957816377) internal successors, (503), 429 states have internal predecessors, (503), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 508 transitions. [2024-11-28 04:05:37,380 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 508 transitions. Word has length 59 [2024-11-28 04:05:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:37,381 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 508 transitions. [2024-11-28 04:05:37,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.875) internal successors, (117), 25 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 508 transitions. [2024-11-28 04:05:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:05:37,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:37,383 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] [2024-11-28 04:05:37,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-28 04:05:37,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:37,584 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:05:37,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash 481744700, now seen corresponding path program 1 times [2024-11-28 04:05:37,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:37,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944021973] [2024-11-28 04:05:37,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:37,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:37,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:37,586 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:37,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:05:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:37,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 04:05:37,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:37,853 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 [2024-11-28 04:05:37,869 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:05:37,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:05:37,912 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 [2024-11-28 04:05:37,917 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 [2024-11-28 04:05:38,041 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:05:38,042 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 50 treesize of output 45 [2024-11-28 04:05:38,050 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 [2024-11-28 04:05:38,185 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 04:05:38,185 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-28 04:05:38,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-28 04:05:38,214 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:05:38,214 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-28 04:05:38,366 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:05:38,367 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 50 treesize of output 45 [2024-11-28 04:05:38,377 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 [2024-11-28 04:05:38,648 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 25 treesize of output 13 [2024-11-28 04:05:38,654 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 [2024-11-28 04:05:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:38,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:39,151 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_1472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1472) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:05:39,457 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_1472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_1472) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) is different from false [2024-11-28 04:05:39,535 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1468 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1469 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1469))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1468) .cse0 v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) (select |c_#length| (select (select (store .cse1 .cse0 v_ArrVal_1472) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) (forall ((v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1468 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1469 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1468) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1469) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd (_ bv12 32) .cse2))))) is different from false [2024-11-28 04:05:39,571 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_1472 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1468 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1469 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1469))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1468) .cse1 v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1472) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) (forall ((v_ArrVal_1473 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1468 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1469 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1468) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1469) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1473) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-28 04:05:39,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:39,613 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 74 [2024-11-28 04:05:39,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:39,626 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 50 [2024-11-28 04:05:39,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:39,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 632 treesize of output 567 [2024-11-28 04:05:39,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:39,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1831 treesize of output 1742 [2024-11-28 04:05:39,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 547 treesize of output 523 [2024-11-28 04:05:39,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 523 treesize of output 499 [2024-11-28 04:05:39,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 499 treesize of output 491 [2024-11-28 04:05:39,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:39,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 491 treesize of output 447 [2024-11-28 04:05:41,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:41,773 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-28 04:05:41,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:41,791 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 50 [2024-11-28 04:05:41,809 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 84 treesize of output 72 [2024-11-28 04:05:41,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:05:41,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 232 treesize of output 215 [2024-11-28 04:05:41,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 78 treesize of output 74 [2024-11-28 04:05:41,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 74 treesize of output 70 [2024-11-28 04:05:41,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 104 treesize of output 92 [2024-11-28 04:05:42,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:42,434 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:05:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944021973] [2024-11-28 04:05:42,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944021973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:42,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:05:42,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2024-11-28 04:05:42,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141581805] [2024-11-28 04:05:42,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:42,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:05:42,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:05:42,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:05:42,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=314, Unknown=15, NotChecked=156, Total=552 [2024-11-28 04:05:42,436 INFO L87 Difference]: Start difference. First operand 431 states and 508 transitions. Second operand has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:47,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:47,433 INFO L93 Difference]: Finished difference Result 615 states and 734 transitions. [2024-11-28 04:05:47,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:05:47,434 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-28 04:05:47,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:47,435 INFO L225 Difference]: With dead ends: 615 [2024-11-28 04:05:47,435 INFO L226 Difference]: Without dead ends: 615 [2024-11-28 04:05:47,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 94 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=196, Invalid=924, Unknown=18, NotChecked=268, Total=1406 [2024-11-28 04:05:47,435 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 660 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1359 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:47,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 1163 Invalid, 2785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1391 Invalid, 0 Unknown, 1359 Unchecked, 4.0s Time] [2024-11-28 04:05:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-28 04:05:47,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 465. [2024-11-28 04:05:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 437 states have (on average 1.265446224256293) internal successors, (553), 463 states have internal predecessors, (553), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 558 transitions. [2024-11-28 04:05:47,442 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 558 transitions. Word has length 59 [2024-11-28 04:05:47,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:47,442 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 558 transitions. [2024-11-28 04:05:47,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 558 transitions. [2024-11-28 04:05:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:05:47,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:47,443 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:47,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-28 04:05:47,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:47,643 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:05:47,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:47,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1054799839, now seen corresponding path program 1 times [2024-11-28 04:05:47,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:05:47,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698629765] [2024-11-28 04:05:47,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:47,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:47,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:47,645 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:47,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:05:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:55,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 04:05:55,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:55,085 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 7 [2024-11-28 04:05:55,131 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:05:55,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:05:55,164 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 [2024-11-28 04:05:55,180 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 [2024-11-28 04:05:55,277 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:05:55,278 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 41 treesize of output 38 [2024-11-28 04:05:55,286 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 [2024-11-28 04:05:55,362 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-28 04:05:55,363 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 47 treesize of output 33 [2024-11-28 04:05:55,372 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 27 treesize of output 22 [2024-11-28 04:05:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:05:56,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:03,841 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (let ((.cse6 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1512 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (let ((.cse5 (store |c_#memory_$Pointer$#1.offset| .cse6 v_ArrVal_1511)) (.cse2 (store |c_#memory_$Pointer$#1.base| .cse6 v_ArrVal_1512))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (.cse4 (bvadd (_ bv8 32) (select (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) (select (let ((.cse0 (store .cse2 .cse3 (store (select .cse2 .cse3) .cse4 (_ bv0 32))))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (bvadd (select (select (store .cse5 .cse3 (store (select .cse5 .cse3) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) (_ bv8 32))))))) (forall ((v_ArrVal_1511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1512 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (let ((.cse11 (store |c_#memory_$Pointer$#1.offset| .cse6 v_ArrVal_1511)) (.cse8 (store |c_#memory_$Pointer$#1.base| .cse6 v_ArrVal_1512))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (.cse10 (bvadd (_ bv8 32) (select (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) (let ((.cse7 (store .cse11 .cse9 (store (select .cse11 .cse9) .cse10 (_ bv0 32))))) (select (select .cse7 (select (select (store .cse8 .cse9 (store (select .cse8 .cse9) .cse10 (_ bv0 32))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (bvadd (select (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) (_ bv8 32))))))))))) is different from false [2024-11-28 04:06:04,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:06:04,110 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 300 treesize of output 261 [2024-11-28 04:06:04,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:06:04,127 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 250 treesize of output 161 [2024-11-28 04:06:05,090 INFO L349 Elim1Store]: treesize reduction 206, result has 10.8 percent of original size [2024-11-28 04:06:05,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 14121 treesize of output 11957 [2024-11-28 04:06:05,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:06:05,217 INFO L349 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2024-11-28 04:06:05,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12511 treesize of output 11623 [2024-11-28 04:06:05,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1202 treesize of output 1098 [2024-11-28 04:06:05,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1199 treesize of output 991 [2024-11-28 04:06:05,552 INFO L349 Elim1Store]: treesize reduction 20, result has 59.2 percent of original size [2024-11-28 04:06:05,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1060 treesize of output 912 [2024-11-28 04:06:07,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4 [2024-11-28 04:06:07,297 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-28 04:06:07,297 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 300 treesize of output 1 [2024-11-28 04:06:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:06:07,680 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:06:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698629765] [2024-11-28 04:06:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698629765] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:07,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 22 [2024-11-28 04:06:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418587649] [2024-11-28 04:06:07,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:07,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:06:07,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:06:07,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:06:07,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=355, Unknown=5, NotChecked=38, Total=462 [2024-11-28 04:06:07,681 INFO L87 Difference]: Start difference. First operand 465 states and 558 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:06:12,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:15,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:19,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:28,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 04:06:35,287 WARN L286 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 59 DAG size of output: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:06:42,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:46,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:51,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:55,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:06:59,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:05,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:07,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:13,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:14,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:20,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:33,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:36,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:42,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:46,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:50,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:54,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:07:57,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:08:01,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:08:05,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:08:09,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:08:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:12,412 INFO L93 Difference]: Finished difference Result 507 states and 606 transitions. [2024-11-28 04:08:12,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:08:12,416 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-28 04:08:12,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:12,417 INFO L225 Difference]: With dead ends: 507 [2024-11-28 04:08:12,417 INFO L226 Difference]: Without dead ends: 507 [2024-11-28 04:08:12,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=127, Invalid=800, Unknown=7, NotChecked=58, Total=992 [2024-11-28 04:08:12,418 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 230 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 15 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 220 IncrementalHoareTripleChecker+Unchecked, 101.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:12,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 839 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 673 Invalid, 9 Unknown, 220 Unchecked, 101.8s Time] [2024-11-28 04:08:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-28 04:08:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 468. [2024-11-28 04:08:12,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 440 states have (on average 1.2636363636363637) internal successors, (556), 466 states have internal predecessors, (556), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:08:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 561 transitions. [2024-11-28 04:08:12,426 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 561 transitions. Word has length 60 [2024-11-28 04:08:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:12,426 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 561 transitions. [2024-11-28 04:08:12,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:08:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 561 transitions. [2024-11-28 04:08:12,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:08:12,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:12,427 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:08:12,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-28 04:08:12,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:12,628 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:08:12,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:12,628 INFO L85 PathProgramCache]: Analyzing trace with hash -857081238, now seen corresponding path program 1 times [2024-11-28 04:08:12,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:08:12,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953675127] [2024-11-28 04:08:12,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:12,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:12,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:12,631 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:12,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:08:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:12,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 04:08:12,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:12,998 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:08:12,998 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 19 treesize of output 27 [2024-11-28 04:08:13,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-28 04:08:13,135 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 [2024-11-28 04:08:13,158 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 [2024-11-28 04:08:13,463 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:13,463 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 61 treesize of output 54 [2024-11-28 04:08:13,486 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 [2024-11-28 04:08:13,736 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:13,737 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 61 treesize of output 54 [2024-11-28 04:08:13,753 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 [2024-11-28 04:08:14,458 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-11-28 04:08:14,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2024-11-28 04:08:14,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-28 04:08:14,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:08:14,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2024-11-28 04:08:15,164 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:15,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 70 treesize of output 59 [2024-11-28 04:08:15,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2024-11-28 04:08:15,734 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:08:15,734 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 38 [2024-11-28 04:08:15,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:08:15,792 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 16 treesize of output 11 [2024-11-28 04:08:16,199 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:16,199 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 70 treesize of output 59 [2024-11-28 04:08:16,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2024-11-28 04:08:17,135 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 45 treesize of output 21 [2024-11-28 04:08:17,147 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 [2024-11-28 04:08:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:08:17,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:18,171 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)))) (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false [2024-11-28 04:08:18,360 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:08:18,412 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd (_ bv12 32) .cse2)))))) is different from false [2024-11-28 04:08:18,523 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1589) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1588) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1588))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1589) .cse2 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:08:18,578 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1588))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1589) .cse1 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)))))) (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1589) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1588) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32))))))) is different from false [2024-11-28 04:08:18,741 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (and (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1589) (select (select (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1588) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1588))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1589) .cse4 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)))))))) is different from false [2024-11-28 04:08:20,729 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1584 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1583 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc10#1.base_26| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))) (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store (let ((.cse1 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1583))) (store .cse1 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1589) (select (select (store (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1584))) (store .cse2 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1588) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))))) (forall ((v_ArrVal_1584 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1583 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc10#1.base_26| (_ BitVec 32))) (or (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1585 (_ BitVec 32))) (let ((.cse6 (store (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1584))) (store .cse7 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1588))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (bvule (bvadd (select (select (store (store (let ((.cse4 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1583))) (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1589) .cse5 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) (_ bv12 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1585) (select (select (store .cse6 .cse5 v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))))))) is different from false [2024-11-28 04:08:21,990 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (and (forall ((v_ArrVal_1581 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1584 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1582 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1583 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc10#1.base_26| (_ BitVec 32))) (or (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1585 (_ BitVec 32))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1581))) (let ((.cse1 (select (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (let ((.cse4 (store (let ((.cse5 (store .cse6 .cse1 v_ArrVal_1584))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1588))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (bvule (bvadd (_ bv12 32) (select (select (store (store (let ((.cse0 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1582) .cse1 v_ArrVal_1583))) (store .cse0 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1589) .cse2 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1585) (select (select (store .cse4 .cse2 v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)))))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))))) (forall ((v_ArrVal_1581 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1584 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1582 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1583 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc10#1.base_26| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))) (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1581))) (let ((.cse9 (select (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (store (store (let ((.cse8 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1582) .cse9 v_ArrVal_1583))) (store .cse8 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1589) (select (select (store (let ((.cse10 (store .cse11 .cse9 v_ArrVal_1584))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_26|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_26| v_ArrVal_1588) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) v_ArrVal_1593))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse7) (bvadd (_ bv12 32) .cse7)))))))) is different from false [2024-11-28 04:08:24,082 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:08:24,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:08:24,100 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 535 treesize of output 535 [2024-11-28 04:08:24,115 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:08:24,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:08:24,134 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 230 treesize of output 180 [2024-11-28 04:08:24,148 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 430 treesize of output 364 [2024-11-28 04:08:24,164 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 568 treesize of output 532 [2024-11-28 04:08:24,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 79 treesize of output 75 [2024-11-28 04:08:24,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 75 treesize of output 71 [2024-11-28 04:08:24,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 71 treesize of output 59 [2024-11-28 04:08:24,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 55 [2024-11-28 04:08:24,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 treesize of output 18 [2024-11-28 04:08:24,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 [2024-11-28 04:08:24,756 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:08:24,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:08:24,774 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 264 treesize of output 254 [2024-11-28 04:08:24,788 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:08:24,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:08:24,817 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 84 [2024-11-28 04:08:24,829 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 108 treesize of output 90 [2024-11-28 04:08:24,841 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 180 treesize of output 150 [2024-11-28 04:08:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 70 treesize of output 62 [2024-11-28 04:08:24,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 62 treesize of output 54 [2024-11-28 04:08:24,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 54 treesize of output 46 [2024-11-28 04:08:24,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 11 [2024-11-28 04:08:25,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:08:25,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 441 treesize of output 478 [2024-11-28 04:08:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:08:28,141 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:08:28,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953675127] [2024-11-28 04:08:28,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953675127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:28,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:28,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 35 [2024-11-28 04:08:28,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415554734] [2024-11-28 04:08:28,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:28,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 04:08:28,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:08:28,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 04:08:28,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=623, Unknown=31, NotChecked=472, Total=1260 [2024-11-28 04:08:28,143 INFO L87 Difference]: Start difference. First operand 468 states and 561 transitions. Second operand has 36 states, 35 states have (on average 3.4571428571428573) internal successors, (121), 36 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:08:40,601 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|))) (let ((.cse3 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|))) (.cse1 (select .cse8 (_ bv8 32))) (.cse0 (select .cse8 (_ bv0 32)))) (and (not (= |c_ULTIMATE.start_main_~list~0#1.base| .cse0)) (not (= .cse1 |c_ULTIMATE.start_main_~list~0#1.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|))) (= (_ bv12 32) (select |c_#length| .cse1)) (forall ((v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1589) (select (select (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1588) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse5))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd (_ bv12 32) .cse2)))) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse0) (= (_ bv0 32) |c_ULTIMATE.start_main_~list~0#1.offset|) (forall ((v_ArrVal_1592 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1593 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_#t~malloc10#1.offset| (_ BitVec 32)) (v_ArrVal_1588 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1588))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1589) .cse6 v_ArrVal_1593) |c_ULTIMATE.start_main_~list~0#1.base|) .cse5)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_1592) |c_ULTIMATE.start_main_~list~0#1.base|) .cse5)))))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| .cse1))) (not (= .cse1 .cse0)) (= (_ bv0 32) (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base|) (_ bv8 32)))))) is different from false [2024-11-28 04:08:53,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:53,288 INFO L93 Difference]: Finished difference Result 990 states and 1216 transitions. [2024-11-28 04:08:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 04:08:53,289 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.4571428571428573) internal successors, (121), 36 states have internal predecessors, (121), 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 61 [2024-11-28 04:08:53,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:53,290 INFO L225 Difference]: With dead ends: 990 [2024-11-28 04:08:53,290 INFO L226 Difference]: Without dead ends: 990 [2024-11-28 04:08:53,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=435, Invalid=1821, Unknown=36, NotChecked=900, Total=3192 [2024-11-28 04:08:53,291 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 1110 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 60 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 6836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 4532 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:53,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 2455 Invalid, 6836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2228 Invalid, 16 Unknown, 4532 Unchecked, 19.8s Time] [2024-11-28 04:08:53,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-11-28 04:08:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 504. [2024-11-28 04:08:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 477 states have (on average 1.2389937106918238) internal successors, (591), 502 states have internal predecessors, (591), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:08:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 596 transitions. [2024-11-28 04:08:53,298 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 596 transitions. Word has length 61 [2024-11-28 04:08:53,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:53,299 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 596 transitions. [2024-11-28 04:08:53,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.4571428571428573) internal successors, (121), 36 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:08:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 596 transitions. [2024-11-28 04:08:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:08:53,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:53,300 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:08:53,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 04:08:53,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:53,501 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:08:53,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:53,501 INFO L85 PathProgramCache]: Analyzing trace with hash -857081239, now seen corresponding path program 1 times [2024-11-28 04:08:53,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:08:53,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335568953] [2024-11-28 04:08:53,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:53,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:53,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:53,503 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:53,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:08:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:53,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:08:53,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:53,715 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 7 [2024-11-28 04:08:53,879 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:08:53,879 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 19 treesize of output 27 [2024-11-28 04:08:53,950 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 [2024-11-28 04:08:54,177 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:54,177 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 36 treesize of output 35 [2024-11-28 04:08:54,426 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:54,426 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 36 treesize of output 35 [2024-11-28 04:08:54,968 INFO L349 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2024-11-28 04:08:54,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 44 [2024-11-28 04:08:55,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2024-11-28 04:08:55,643 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:55,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 56 treesize of output 49 [2024-11-28 04:08:56,217 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:08:56,217 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 40 [2024-11-28 04:08:56,665 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:08:56,665 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 56 treesize of output 49 [2024-11-28 04:08:57,549 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 47 treesize of output 23 [2024-11-28 04:08:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:08:57,858 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:58,273 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1663) |c_ULTIMATE.start_main_~list~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)))) (_ bv0 1))) is different from false [2024-11-28 04:08:58,347 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1663) |c_ULTIMATE.start_main_~list~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) is different from false [2024-11-28 04:08:58,520 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) is different from false [2024-11-28 04:08:58,541 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) is different from false [2024-11-28 04:08:58,575 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) is different from false [2024-11-28 04:09:01,004 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_29| (_ BitVec 32)) (v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1659 (_ BitVec 1))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1659) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (select (select (let ((.cse0 (store (let ((.cse1 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) v_ArrVal_1658))) (store .cse1 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))))) is different from false [2024-11-28 04:09:01,086 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_29| (_ BitVec 32)) (v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1659 (_ BitVec 1)) (v_ArrVal_1657 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))) (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1659) (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (select (select (let ((.cse0 (store (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1657))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) v_ArrVal_1658)))) (store .cse1 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))))))) is different from false [2024-11-28 04:09:01,148 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_29| (_ BitVec 32)) (v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1658 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1659 (_ BitVec 1)) (v_ArrVal_1657 (Array (_ BitVec 32) (_ BitVec 32)))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1659) (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))) (select (select (let ((.cse0 (store (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) v_ArrVal_1657))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) v_ArrVal_1658)))) (store .cse1 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))))) is different from false [2024-11-28 04:09:01,206 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:09:01,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:09:01,220 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 65 [2024-11-28 04:09:01,230 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 196 treesize of output 160 [2024-11-28 04:09:01,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 71 treesize of output 67 [2024-11-28 04:09:01,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 67 treesize of output 55 [2024-11-28 04:09:01,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 [2024-11-28 04:09:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:07,044 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:09:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335568953] [2024-11-28 04:09:07,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335568953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:07,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:09:07,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 34 [2024-11-28 04:09:07,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291418951] [2024-11-28 04:09:07,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:07,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 04:09:07,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:09:07,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 04:09:07,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=530, Unknown=60, NotChecked=456, Total=1190 [2024-11-28 04:09:07,045 INFO L87 Difference]: Start difference. First operand 504 states and 596 transitions. Second operand has 35 states, 34 states have (on average 3.5588235294117645) internal successors, (121), 35 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:10,939 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|))) (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|)) (.cse2 (select .cse4 (_ bv8 32))) (.cse1 (select .cse4 (_ bv0 32)))) (and (forall ((v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1663) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (_ bv0 1))) (not (= |c_ULTIMATE.start_main_~list~0#1.base| .cse1)) (not (= .cse2 |c_ULTIMATE.start_main_~list~0#1.base|)) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_29| (_ BitVec 32)) (v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1659 (_ BitVec 1))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1659) (select (select (let ((.cse3 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1661))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|))) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse1) (= (_ bv0 32) |c_ULTIMATE.start_main_~list~0#1.offset|) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| .cse2))) (not (= .cse2 .cse1))))) is different from false [2024-11-28 04:09:12,208 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base|))) (let ((.cse1 (select .cse3 (_ bv8 32))) (.cse0 (select .cse3 (_ bv0 32)))) (and (not (= |c_ULTIMATE.start_main_~list~0#1.base| .cse0)) (not (= .cse1 |c_ULTIMATE.start_main_~list~0#1.base|)) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_29| (_ BitVec 32)) (v_ArrVal_1661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1663 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1659 (_ BitVec 1))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1659) (select (select (let ((.cse2 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_29| v_ArrVal_1661))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1663)) |c_ULTIMATE.start_main_~list~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~list~0#1.offset|))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_29|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|))) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse0) (= (_ bv0 32) |c_ULTIMATE.start_main_~list~0#1.offset|) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| .cse1))) (not (= .cse1 .cse0))))) is different from false [2024-11-28 04:09:20,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 04:09:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:20,938 INFO L93 Difference]: Finished difference Result 834 states and 1004 transitions. [2024-11-28 04:09:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:09:20,939 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 3.5588235294117645) internal successors, (121), 35 states have internal predecessors, (121), 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 61 [2024-11-28 04:09:20,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:20,941 INFO L225 Difference]: With dead ends: 834 [2024-11-28 04:09:20,941 INFO L226 Difference]: Without dead ends: 834 [2024-11-28 04:09:20,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 86 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=225, Invalid=802, Unknown=69, NotChecked=710, Total=1806 [2024-11-28 04:09:20,942 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 523 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 5176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3120 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:20,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2511 Invalid, 5176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2027 Invalid, 0 Unknown, 3120 Unchecked, 12.6s Time] [2024-11-28 04:09:20,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-28 04:09:20,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 502. [2024-11-28 04:09:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 477 states have (on average 1.220125786163522) internal successors, (582), 500 states have internal predecessors, (582), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 587 transitions. [2024-11-28 04:09:20,947 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 587 transitions. Word has length 61 [2024-11-28 04:09:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:20,947 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 587 transitions. [2024-11-28 04:09:20,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.5588235294117645) internal successors, (121), 35 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 587 transitions. [2024-11-28 04:09:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:09:20,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:20,948 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:20,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 04:09:21,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:21,148 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:09:21,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:21,148 INFO L85 PathProgramCache]: Analyzing trace with hash 139485869, now seen corresponding path program 1 times [2024-11-28 04:09:21,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:09:21,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757950013] [2024-11-28 04:09:21,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:21,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:21,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:21,150 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:21,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:09:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:21,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:09:21,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:22,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:24,783 INFO L349 Elim1Store]: treesize reduction 8, result has 92.8 percent of original size [2024-11-28 04:09:24,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 146 [2024-11-28 04:09:25,098 INFO L349 Elim1Store]: treesize reduction 22, result has 70.7 percent of original size [2024-11-28 04:09:25,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 131 [2024-11-28 04:09:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:25,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:09:25,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757950013] [2024-11-28 04:09:25,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757950013] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:25,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:09:25,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2024-11-28 04:09:25,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351410536] [2024-11-28 04:09:25,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:25,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:09:25,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:09:25,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:09:25,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:09:25,899 INFO L87 Difference]: Start difference. First operand 502 states and 587 transitions. Second operand has 18 states, 18 states have (on average 6.666666666666667) internal successors, (120), 18 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:30,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:36,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:39,702 INFO L93 Difference]: Finished difference Result 546 states and 620 transitions. [2024-11-28 04:09:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:09:39,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.666666666666667) internal successors, (120), 18 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-28 04:09:39,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:39,705 INFO L225 Difference]: With dead ends: 546 [2024-11-28 04:09:39,705 INFO L226 Difference]: Without dead ends: 546 [2024-11-28 04:09:39,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:09:39,705 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 260 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:39,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1138 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 868 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2024-11-28 04:09:39,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-28 04:09:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 504. [2024-11-28 04:09:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 479 states have (on average 1.2192066805845512) internal successors, (584), 502 states have internal predecessors, (584), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 589 transitions. [2024-11-28 04:09:39,712 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 589 transitions. Word has length 63 [2024-11-28 04:09:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:39,712 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 589 transitions. [2024-11-28 04:09:39,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.666666666666667) internal successors, (120), 18 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 589 transitions. [2024-11-28 04:09:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:09:39,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:39,713 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:39,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 04:09:39,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:39,914 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:09:39,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash 4502011, now seen corresponding path program 1 times [2024-11-28 04:09:39,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:09:39,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189168532] [2024-11-28 04:09:39,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:39,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:39,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:39,916 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:39,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:09:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:40,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:09:40,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:40,108 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 7 [2024-11-28 04:09:40,187 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:09:40,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:09:40,240 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 19 treesize of output 1 [2024-11-28 04:09:40,248 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 13 treesize of output 9 [2024-11-28 04:09:40,415 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:40,415 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 51 treesize of output 48 [2024-11-28 04:09:40,424 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 30 treesize of output 13 [2024-11-28 04:09:40,467 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 20 treesize of output 8 [2024-11-28 04:09:40,526 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 18 treesize of output 13 [2024-11-28 04:09:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:09:40,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:40,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:09:40,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189168532] [2024-11-28 04:09:40,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189168532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:40,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:40,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:09:40,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249763754] [2024-11-28 04:09:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:40,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:09:40,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:09:40,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:09:40,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:09:40,965 INFO L87 Difference]: Start difference. First operand 504 states and 589 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:43,349 INFO L93 Difference]: Finished difference Result 522 states and 610 transitions. [2024-11-28 04:09:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:09:43,350 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 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 62 [2024-11-28 04:09:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:43,351 INFO L225 Difference]: With dead ends: 522 [2024-11-28 04:09:43,351 INFO L226 Difference]: Without dead ends: 522 [2024-11-28 04:09:43,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:09:43,351 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 221 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:43,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 615 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:09:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-28 04:09:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 509. [2024-11-28 04:09:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 484 states have (on average 1.2169421487603307) internal successors, (589), 507 states have internal predecessors, (589), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 594 transitions. [2024-11-28 04:09:43,357 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 594 transitions. Word has length 62 [2024-11-28 04:09:43,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:43,357 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 594 transitions. [2024-11-28 04:09:43,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:43,357 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 594 transitions. [2024-11-28 04:09:43,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:09:43,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:43,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:43,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:43,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:43,559 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:09:43,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash 139562830, now seen corresponding path program 1 times [2024-11-28 04:09:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:09:43,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213340836] [2024-11-28 04:09:43,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:43,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:43,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:43,561 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:43,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 04:09:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:43,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:09:43,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:43,835 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:09:43,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:09:43,890 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 19 treesize of output 1 [2024-11-28 04:09:44,064 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:44,064 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 40 treesize of output 39 [2024-11-28 04:09:44,216 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:09:44,216 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 40 treesize of output 39 [2024-11-28 04:09:44,794 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 29 treesize of output 11 [2024-11-28 04:09:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:09:44,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:44,970 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:09:44,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213340836] [2024-11-28 04:09:44,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213340836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:44,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:09:44,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:09:44,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829891739] [2024-11-28 04:09:44,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:44,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:09:44,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:09:44,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:09:44,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:44,971 INFO L87 Difference]: Start difference. First operand 509 states and 594 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:47,386 INFO L93 Difference]: Finished difference Result 512 states and 598 transitions. [2024-11-28 04:09:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:09:47,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 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 63 [2024-11-28 04:09:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:47,388 INFO L225 Difference]: With dead ends: 512 [2024-11-28 04:09:47,388 INFO L226 Difference]: Without dead ends: 512 [2024-11-28 04:09:47,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:09:47,389 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 174 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:47,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 566 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:09:47,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-28 04:09:47,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 510. [2024-11-28 04:09:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 485 states have (on average 1.2164948453608246) internal successors, (590), 508 states have internal predecessors, (590), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 595 transitions. [2024-11-28 04:09:47,393 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 595 transitions. Word has length 63 [2024-11-28 04:09:47,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:47,393 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 595 transitions. [2024-11-28 04:09:47,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:09:47,393 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 595 transitions. [2024-11-28 04:09:47,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:09:47,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:47,394 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] [2024-11-28 04:09:47,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-28 04:09:47,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:47,594 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 71 more)] === [2024-11-28 04:09:47,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:47,595 INFO L85 PathProgramCache]: Analyzing trace with hash 56291343, now seen corresponding path program 1 times [2024-11-28 04:09:47,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:09:47,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684837438] [2024-11-28 04:09:47,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:47,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:47,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:47,597 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:47,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0391ac8-694e-47e3-ab12-8c680a1c70a9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 04:09:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:47,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:09:47,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:47,811 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 7 [2024-11-28 04:09:48,088 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:09:48,089 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 19 treesize of output 27 [2024-11-28 04:09:48,191 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 [2024-11-28 04:09:48,469 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:09:48,470 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 36 treesize of output 35 [2024-11-28 04:09:48,733 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:09:48,733 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2024-11-28 04:09:48,971 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-11-28 04:09:48,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2024-11-28 04:09:49,140 INFO L349 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2024-11-28 04:09:49,141 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 1 case distinctions, treesize of input 49 treesize of output 25 [2024-11-28 04:09:49,518 INFO L349 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2024-11-28 04:09:49,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 50 [2024-11-28 04:09:49,808 INFO L349 Elim1Store]: treesize reduction 48, result has 18.6 percent of original size [2024-11-28 04:09:49,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 67 [2024-11-28 04:09:50,582 INFO L349 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2024-11-28 04:09:50,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 26 [2024-11-28 04:09:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:09:50,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:51,187 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) (bvadd |c_ULTIMATE.start_main_~end~0#1.offset| (_ bv8 32))) v_ArrVal_1843) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:09:51,215 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1842))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) (bvadd |c_ULTIMATE.start_main_~end~0#1.offset| (_ bv8 32))) v_ArrVal_1843)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:09:51,235 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse1 (bvadd |c_ULTIMATE.start_main_~end~0#1.offset| (_ bv8 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) .cse1) v_ArrVal_1842))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) .cse1) v_ArrVal_1843))) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (_ bv0 1))) is different from false [2024-11-28 04:09:51,292 INFO L349 Elim1Store]: treesize reduction 7, result has 85.7 percent of original size [2024-11-28 04:09:51,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 54 [2024-11-28 04:09:51,318 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~end~0#1.offset| (_ BitVec 32)) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (let ((.cse1 (bvadd (_ bv8 32) |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~malloc14#1.base|)) |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_1842))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) .cse1) v_ArrVal_1843))) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) |c_ULTIMATE.start_main_~end~0#1.base|)) is different from false [2024-11-28 04:09:51,401 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc14#1.base_17| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc14#1.base_17|))) (forall ((v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~end~0#1.offset| (_ BitVec 32)) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~end~0#1.base| (select (select (let ((.cse1 (bvadd (_ bv8 32) |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc14#1.base_17|)) |v_ULTIMATE.start_main_#t~malloc14#1.base_17| v_ArrVal_1842))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) .cse1) v_ArrVal_1843))) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))))) is different from false [2024-11-28 04:09:51,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:09:51,514 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2024-11-28 04:09:51,541 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_16 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~end~0#1.offset| (_ BitVec 32)) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse0 (select v_arrayElimArr_16 .cse2))) (or (not (= (_ bv0 1) (select |c_#valid| .cse0))) (= |c_ULTIMATE.start_main_~end~0#1.base| (select (select (let ((.cse1 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_16) .cse0 v_ArrVal_1842))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) .cse2) v_ArrVal_1843)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) is different from false [2024-11-28 04:09:51,572 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_16 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~end~0#1.offset| (_ BitVec 32)) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse0 (select v_arrayElimArr_16 .cse2))) (or (not (= (_ bv0 1) (select |c_#valid| .cse0))) (= (select (select (let ((.cse1 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem12#1.base| v_arrayElimArr_16) .cse0 v_ArrVal_1842))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_#t~mem12#1.base|) .cse2) v_ArrVal_1843)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) |c_ULTIMATE.start_main_#t~mem12#1.base|))))) is different from false [2024-11-28 04:09:51,608 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_122| (_ BitVec 32)) (v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_16 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~end~0#1.offset_122| (_ bv8 32)))) (let ((.cse3 (select v_arrayElimArr_16 .cse2))) (or (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| .cse1 v_arrayElimArr_16) .cse3 v_ArrVal_1842))) (store .cse0 (select (select .cse0 .cse1) .cse2) v_ArrVal_1843)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) .cse1)) (not (= (_ bv0 1) (select |c_#valid| .cse3))))))) is different from false [2024-11-28 04:09:51,668 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1838 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~end~0#1.offset_122| (_ BitVec 32)) (v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_16 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~end~0#1.offset_122| (_ bv8 32)))) (let ((.cse4 (select v_arrayElimArr_16 .cse2))) (or (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1838))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (= .cse0 (select (select (let ((.cse1 (store (store .cse3 .cse0 v_arrayElimArr_16) .cse4 v_ArrVal_1842))) (store .cse1 (select (select .cse1 .cse0) .cse2) v_ArrVal_1843)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| .cse4))))))) is different from false [2024-11-28 04:09:51,708 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1838 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~end~0#1.offset_122| (_ BitVec 32)) (v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_16 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1843 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~end~0#1.offset_122| (_ bv8 32)))) (let ((.cse4 (select v_arrayElimArr_16 .cse2))) (or (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1838))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (= (select (select (let ((.cse0 (store (store .cse3 .cse1 v_arrayElimArr_16) .cse4 v_ArrVal_1842))) (store .cse0 (select (select .cse0 .cse1) .cse2) v_ArrVal_1843)) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) .cse1))) (not (= (_ bv0 1) (select |c_#valid| .cse4))))))) is different from false [2024-11-28 04:09:51,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:09:51,759 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 79 [2024-11-28 04:09:51,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:09:51,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4024 treesize of output 3607 [2024-11-28 04:09:51,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:09:51,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2377 treesize of output 2047 [2024-11-28 04:09:52,035 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:09:52,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2031 treesize of output 1753 [2024-11-28 04:09:52,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:09:52,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1743 treesize of output 1607 [2024-11-28 04:09:52,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1599 treesize of output 1535