./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/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_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:41:41,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:41:41,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:41:41,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:41:41,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:41:41,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:41:41,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:41:41,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:41:41,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:41:41,246 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:41:41,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:41:41,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:41:41,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:41:41,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:41:41,248 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:41:41,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:41:41,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:41:41,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:41:41,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:41:41,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:41:41,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:41:41,249 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:41,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:41,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:41,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:41,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:41:41,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:41,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:41,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:41,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:41,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:41:41,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:41:41,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:41:41,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:41:41,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:41:41,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:41:41,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:41:41,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:41:41,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:41:41,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:41:41,253 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_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 [2024-11-28 02:41:41,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:41:41,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:41:41,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:41:41,596 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:41:41,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:41:41,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2024-11-28 02:41:44,717 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/data/ca4664ffa/65245a42ff724864a2a7a8d660138c4d/FLAGdfb6206cd [2024-11-28 02:41:45,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:41:45,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2024-11-28 02:41:45,368 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/data/ca4664ffa/65245a42ff724864a2a7a8d660138c4d/FLAGdfb6206cd [2024-11-28 02:41:45,387 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/data/ca4664ffa/65245a42ff724864a2a7a8d660138c4d [2024-11-28 02:41:45,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:41:45,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:41:45,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:45,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:41:45,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:41:45,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:45" (1/1) ... [2024-11-28 02:41:45,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b156afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:45, skipping insertion in model container [2024-11-28 02:41:45,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:45" (1/1) ... [2024-11-28 02:41:45,488 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:41:46,048 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2024-11-28 02:41:46,260 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2024-11-28 02:41:46,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:46,296 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:41:46,341 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2024-11-28 02:41:46,514 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2024-11-28 02:41:46,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:46,596 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:41:46,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46 WrapperNode [2024-11-28 02:41:46,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:46,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:46,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:41:46,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:41:46,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:46,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:46,769 INFO L138 Inliner]: procedures = 177, calls = 424, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2151 [2024-11-28 02:41:46,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:46,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:41:46,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:41:46,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:41:46,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:46,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:46,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,013 INFO L175 MemorySlicer]: Split 397 memory accesses to 3 slices as follows [2, 24, 371]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 91 writes are split as follows [0, 1, 90]. [2024-11-28 02:41:47,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,080 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:41:47,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:41:47,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:41:47,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:41:47,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (1/1) ... [2024-11-28 02:41:47,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:47,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:47,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:47,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:41:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:41:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:41:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:41:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:41:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:41:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:41:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:41:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:41:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:41:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:41:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:41:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:41:47,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:41:47,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:41:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:41:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:41:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:41:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:41:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:41:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:41:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:41:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:41:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:41:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:41:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:41:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:41:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:41:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:41:47,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:41:47,624 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:41:47,626 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:41:51,442 INFO L? ?]: Removed 509 outVars from TransFormulas that were not future-live. [2024-11-28 02:41:51,442 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:41:51,475 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:41:51,475 INFO L312 CfgBuilder]: Removed 52 assume(true) statements. [2024-11-28 02:41:51,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:51 BoogieIcfgContainer [2024-11-28 02:41:51,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:41:51,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:41:51,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:41:51,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:41:51,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:41:45" (1/3) ... [2024-11-28 02:41:51,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abedbb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:51, skipping insertion in model container [2024-11-28 02:41:51,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:46" (2/3) ... [2024-11-28 02:41:51,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abedbb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:51, skipping insertion in model container [2024-11-28 02:41:51,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:51" (3/3) ... [2024-11-28 02:41:51,496 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-2.i [2024-11-28 02:41:51,512 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:41:51,514 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test5-2.i that has 5 procedures, 621 locations, 1 initial locations, 54 loop locations, and 2 error locations. [2024-11-28 02:41:51,608 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:41:51,624 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f9e07cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:41:51,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:41:51,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 613 states, 597 states have (on average 1.6147403685092128) internal successors, (964), 604 states have internal predecessors, (964), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:41:51,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:41:51,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:51,640 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:51,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:51,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash -38742070, now seen corresponding path program 1 times [2024-11-28 02:41:51,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:51,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57747410] [2024-11-28 02:41:51,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:51,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:51,924 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 02:41:51,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:51,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57747410] [2024-11-28 02:41:51,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57747410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:51,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:51,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:51,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34963413] [2024-11-28 02:41:51,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:51,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:51,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:51,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:51,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:51,961 INFO L87 Difference]: Start difference. First operand has 613 states, 597 states have (on average 1.6147403685092128) internal successors, (964), 604 states have internal predecessors, (964), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 02:41:52,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:52,214 INFO L93 Difference]: Finished difference Result 1786 states and 2894 transitions. [2024-11-28 02:41:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:52,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 02:41:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:52,243 INFO L225 Difference]: With dead ends: 1786 [2024-11-28 02:41:52,244 INFO L226 Difference]: Without dead ends: 1137 [2024-11-28 02:41:52,249 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 02:41:52,253 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 797 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:52,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1759 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2024-11-28 02:41:52,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 576. [2024-11-28 02:41:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 561 states have (on average 1.4491978609625669) internal successors, (813), 567 states have internal predecessors, (813), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:41:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 835 transitions. [2024-11-28 02:41:52,423 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 835 transitions. Word has length 9 [2024-11-28 02:41:52,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:52,423 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 835 transitions. [2024-11-28 02:41:52,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 02:41:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 835 transitions. [2024-11-28 02:41:52,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 02:41:52,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:52,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:52,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:41:52,435 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:52,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:52,437 INFO L85 PathProgramCache]: Analyzing trace with hash 512053535, now seen corresponding path program 1 times [2024-11-28 02:41:52,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:52,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762815032] [2024-11-28 02:41:52,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:52,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:53,452 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 02:41:53,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:53,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762815032] [2024-11-28 02:41:53,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762815032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:53,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:53,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:53,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402655449] [2024-11-28 02:41:53,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:53,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:53,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:53,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:53,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:53,457 INFO L87 Difference]: Start difference. First operand 576 states and 835 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 02:41:53,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:53,601 INFO L93 Difference]: Finished difference Result 1152 states and 1670 transitions. [2024-11-28 02:41:53,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:53,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 210 [2024-11-28 02:41:53,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:53,605 INFO L225 Difference]: With dead ends: 1152 [2024-11-28 02:41:53,606 INFO L226 Difference]: Without dead ends: 579 [2024-11-28 02:41:53,608 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 02:41:53,610 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 107 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:53,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 2324 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:53,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-28 02:41:53,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 576. [2024-11-28 02:41:53,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 561 states have (on average 1.4367201426024956) internal successors, (806), 567 states have internal predecessors, (806), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:41:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 828 transitions. [2024-11-28 02:41:53,649 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 828 transitions. Word has length 210 [2024-11-28 02:41:53,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:53,650 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 828 transitions. [2024-11-28 02:41:53,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 02:41:53,651 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 828 transitions. [2024-11-28 02:41:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 02:41:53,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:53,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:53,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:41:53,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:53,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:53,665 INFO L85 PathProgramCache]: Analyzing trace with hash -29900245, now seen corresponding path program 1 times [2024-11-28 02:41:53,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:53,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108105058] [2024-11-28 02:41:53,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:53,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:54,229 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 02:41:54,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:54,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108105058] [2024-11-28 02:41:54,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108105058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:54,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:54,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:54,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425176354] [2024-11-28 02:41:54,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:54,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:54,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:54,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:54,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:54,233 INFO L87 Difference]: Start difference. First operand 576 states and 828 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 02:41:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:54,324 INFO L93 Difference]: Finished difference Result 1155 states and 1662 transitions. [2024-11-28 02:41:54,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:54,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 210 [2024-11-28 02:41:54,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:54,331 INFO L225 Difference]: With dead ends: 1155 [2024-11-28 02:41:54,331 INFO L226 Difference]: Without dead ends: 582 [2024-11-28 02:41:54,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 02:41:54,334 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 2 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:54,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1620 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-28 02:41:54,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2024-11-28 02:41:54,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 567 states have (on average 1.4320987654320987) internal successors, (812), 573 states have internal predecessors, (812), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:41:54,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 834 transitions. [2024-11-28 02:41:54,360 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 834 transitions. Word has length 210 [2024-11-28 02:41:54,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:54,360 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 834 transitions. [2024-11-28 02:41:54,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 02:41:54,361 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 834 transitions. [2024-11-28 02:41:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 02:41:54,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:54,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:54,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:41:54,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:54,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1187432535, now seen corresponding path program 1 times [2024-11-28 02:41:54,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:54,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825374744] [2024-11-28 02:41:54,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:54,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:54,764 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 02:41:54,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825374744] [2024-11-28 02:41:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825374744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:54,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:54,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326670646] [2024-11-28 02:41:54,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:54,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:54,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:54,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:54,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:54,769 INFO L87 Difference]: Start difference. First operand 582 states and 834 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 02:41:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:54,863 INFO L93 Difference]: Finished difference Result 1298 states and 1862 transitions. [2024-11-28 02:41:54,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:54,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 210 [2024-11-28 02:41:54,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:54,870 INFO L225 Difference]: With dead ends: 1298 [2024-11-28 02:41:54,870 INFO L226 Difference]: Without dead ends: 719 [2024-11-28 02:41:54,872 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 02:41:54,874 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 135 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:54,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1645 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:54,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-28 02:41:54,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2024-11-28 02:41:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 704 states have (on average 1.4318181818181819) internal successors, (1008), 710 states have internal predecessors, (1008), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:41:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1030 transitions. [2024-11-28 02:41:54,911 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1030 transitions. Word has length 210 [2024-11-28 02:41:54,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:54,913 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 1030 transitions. [2024-11-28 02:41:54,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 02:41:54,914 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1030 transitions. [2024-11-28 02:41:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 02:41:54,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:54,917 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:54,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:41:54,918 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:54,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash 825347073, now seen corresponding path program 1 times [2024-11-28 02:41:54,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:54,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742032589] [2024-11-28 02:41:54,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:41:55,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:55,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742032589] [2024-11-28 02:41:55,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742032589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:55,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:55,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:55,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320175636] [2024-11-28 02:41:55,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:55,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:55,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:55,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:55,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:55,597 INFO L87 Difference]: Start difference. First operand 719 states and 1030 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:41:55,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:55,735 INFO L93 Difference]: Finished difference Result 1255 states and 1794 transitions. [2024-11-28 02:41:55,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:55,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 225 [2024-11-28 02:41:55,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:55,740 INFO L225 Difference]: With dead ends: 1255 [2024-11-28 02:41:55,740 INFO L226 Difference]: Without dead ends: 676 [2024-11-28 02:41:55,742 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 02:41:55,743 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 36 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:55,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2149 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-28 02:41:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 676. [2024-11-28 02:41:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 661 states have (on average 1.4069591527987897) internal successors, (930), 667 states have internal predecessors, (930), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:41:55,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 952 transitions. [2024-11-28 02:41:55,772 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 952 transitions. Word has length 225 [2024-11-28 02:41:55,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:55,774 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 952 transitions. [2024-11-28 02:41:55,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:41:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 952 transitions. [2024-11-28 02:41:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 02:41:55,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:55,781 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:55,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:41:55,782 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:55,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash 396566893, now seen corresponding path program 1 times [2024-11-28 02:41:55,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:55,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944878146] [2024-11-28 02:41:55,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:55,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:56,263 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:41:56,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:56,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944878146] [2024-11-28 02:41:56,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944878146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:56,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:56,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:56,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967359282] [2024-11-28 02:41:56,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:56,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:56,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:56,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:56,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:56,266 INFO L87 Difference]: Start difference. First operand 676 states and 952 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:41:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:56,365 INFO L93 Difference]: Finished difference Result 1206 states and 1699 transitions. [2024-11-28 02:41:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 225 [2024-11-28 02:41:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:56,369 INFO L225 Difference]: With dead ends: 1206 [2024-11-28 02:41:56,370 INFO L226 Difference]: Without dead ends: 670 [2024-11-28 02:41:56,371 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 02:41:56,372 INFO L435 NwaCegarLoop]: 723 mSDtfsCounter, 9 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:56,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2150 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-28 02:41:56,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2024-11-28 02:41:56,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 655 states have (on average 1.4045801526717556) internal successors, (920), 661 states have internal predecessors, (920), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:41:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 942 transitions. [2024-11-28 02:41:56,394 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 942 transitions. Word has length 225 [2024-11-28 02:41:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:56,395 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 942 transitions. [2024-11-28 02:41:56,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:41:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 942 transitions. [2024-11-28 02:41:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 02:41:56,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:56,399 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:56,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:41:56,399 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:56,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2027840373, now seen corresponding path program 1 times [2024-11-28 02:41:56,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:56,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824702544] [2024-11-28 02:41:56,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:56,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:41:56,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:56,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824702544] [2024-11-28 02:41:56,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824702544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:56,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:56,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62753976] [2024-11-28 02:41:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:56,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:56,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:56,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:56,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:56,823 INFO L87 Difference]: Start difference. First operand 670 states and 942 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:41:56,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:56,936 INFO L93 Difference]: Finished difference Result 1491 states and 2101 transitions. [2024-11-28 02:41:56,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:56,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 225 [2024-11-28 02:41:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:56,943 INFO L225 Difference]: With dead ends: 1491 [2024-11-28 02:41:56,943 INFO L226 Difference]: Without dead ends: 961 [2024-11-28 02:41:56,945 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 02:41:56,945 INFO L435 NwaCegarLoop]: 935 mSDtfsCounter, 456 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:56,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1660 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:56,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-28 02:41:57,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 959. [2024-11-28 02:41:57,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 936 states have (on average 1.4070512820512822) internal successors, (1317), 947 states have internal predecessors, (1317), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:41:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1355 transitions. [2024-11-28 02:41:57,017 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1355 transitions. Word has length 225 [2024-11-28 02:41:57,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:57,018 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1355 transitions. [2024-11-28 02:41:57,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:41:57,018 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1355 transitions. [2024-11-28 02:41:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-28 02:41:57,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:57,022 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:57,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:41:57,023 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:57,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:57,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1485708441, now seen corresponding path program 1 times [2024-11-28 02:41:57,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:57,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232677713] [2024-11-28 02:41:57,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:57,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:41:57,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:57,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232677713] [2024-11-28 02:41:57,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232677713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:57,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574967692] [2024-11-28 02:41:57,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:57,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:57,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:57,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:57,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:41:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:58,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:41:58,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 02:41:58,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:58,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574967692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:58,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:58,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-28 02:41:58,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573856776] [2024-11-28 02:41:58,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:58,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:58,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:58,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:58,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:58,502 INFO L87 Difference]: Start difference. First operand 959 states and 1355 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:41:58,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:58,621 INFO L93 Difference]: Finished difference Result 1323 states and 1900 transitions. [2024-11-28 02:41:58,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:58,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 240 [2024-11-28 02:41:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:58,627 INFO L225 Difference]: With dead ends: 1323 [2024-11-28 02:41:58,627 INFO L226 Difference]: Without dead ends: 999 [2024-11-28 02:41:58,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:58,629 INFO L435 NwaCegarLoop]: 719 mSDtfsCounter, 8 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:58,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1423 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:58,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-28 02:41:58,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 999. [2024-11-28 02:41:58,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 976 states have (on average 1.3903688524590163) internal successors, (1357), 987 states have internal predecessors, (1357), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:41:58,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1395 transitions. [2024-11-28 02:41:58,665 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1395 transitions. Word has length 240 [2024-11-28 02:41:58,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:58,665 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1395 transitions. [2024-11-28 02:41:58,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:41:58,666 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1395 transitions. [2024-11-28 02:41:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-28 02:41:58,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:58,669 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:58,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:41:58,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 02:41:58,870 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:41:58,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash 563679401, now seen corresponding path program 1 times [2024-11-28 02:41:58,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:58,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109818246] [2024-11-28 02:41:58,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:58,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:41:59,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:59,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109818246] [2024-11-28 02:41:59,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109818246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:59,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013210728] [2024-11-28 02:41:59,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:59,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:59,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:59,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:59,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:42:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:00,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:42:00,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 02:42:00,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:42:00,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013210728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:42:00,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:00,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 02:42:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432304357] [2024-11-28 02:42:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:42:00,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:42:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:00,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:42:00,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:42:00,272 INFO L87 Difference]: Start difference. First operand 999 states and 1395 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:42:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:00,412 INFO L93 Difference]: Finished difference Result 1335 states and 1892 transitions. [2024-11-28 02:42:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:42:00,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 240 [2024-11-28 02:42:00,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:00,421 INFO L225 Difference]: With dead ends: 1335 [2024-11-28 02:42:00,421 INFO L226 Difference]: Without dead ends: 971 [2024-11-28 02:42:00,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:42:00,423 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 106 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:00,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2039 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:42:00,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-11-28 02:42:00,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2024-11-28 02:42:00,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 948 states have (on average 1.3871308016877637) internal successors, (1315), 959 states have internal predecessors, (1315), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:42:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1353 transitions. [2024-11-28 02:42:00,463 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1353 transitions. Word has length 240 [2024-11-28 02:42:00,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:00,464 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1353 transitions. [2024-11-28 02:42:00,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:42:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1353 transitions. [2024-11-28 02:42:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-28 02:42:00,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:00,468 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:00,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:00,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:00,669 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:42:00,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:00,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1979642021, now seen corresponding path program 1 times [2024-11-28 02:42:00,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:00,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122207322] [2024-11-28 02:42:00,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:00,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:42:01,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:01,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122207322] [2024-11-28 02:42:01,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122207322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:01,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127927986] [2024-11-28 02:42:01,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:01,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:01,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:01,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:42:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:01,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:42:01,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:02,375 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:42:02,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:42:02,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127927986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:42:02,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:42:02,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:42:02,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998035810] [2024-11-28 02:42:02,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:02,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:42:02,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:02,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:42:02,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:42:02,804 INFO L87 Difference]: Start difference. First operand 971 states and 1353 transitions. Second operand has 7 states, 7 states have (on average 77.14285714285714) internal successors, (540), 7 states have internal predecessors, (540), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:42:03,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:03,086 INFO L93 Difference]: Finished difference Result 2593 states and 3638 transitions. [2024-11-28 02:42:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:42:03,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 77.14285714285714) internal successors, (540), 7 states have internal predecessors, (540), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 240 [2024-11-28 02:42:03,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:03,098 INFO L225 Difference]: With dead ends: 2593 [2024-11-28 02:42:03,098 INFO L226 Difference]: Without dead ends: 2256 [2024-11-28 02:42:03,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:42:03,100 INFO L435 NwaCegarLoop]: 775 mSDtfsCounter, 3245 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3276 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:03,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3276 Valid, 2721 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:42:03,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-11-28 02:42:03,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1732. [2024-11-28 02:42:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1694 states have (on average 1.370720188902007) internal successors, (2322), 1705 states have internal predecessors, (2322), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 26 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 02:42:03,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2390 transitions. [2024-11-28 02:42:03,175 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2390 transitions. Word has length 240 [2024-11-28 02:42:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:03,175 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2390 transitions. [2024-11-28 02:42:03,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.14285714285714) internal successors, (540), 7 states have internal predecessors, (540), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:42:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2390 transitions. [2024-11-28 02:42:03,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2024-11-28 02:42:03,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:03,194 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:03,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:42:03,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:03,398 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:42:03,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:03,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1796185874, now seen corresponding path program 1 times [2024-11-28 02:42:03,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:03,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240189533] [2024-11-28 02:42:03,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:03,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 7 proven. 536 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-11-28 02:42:05,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:05,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240189533] [2024-11-28 02:42:05,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240189533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:05,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117747288] [2024-11-28 02:42:05,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:05,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:05,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:05,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:05,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:42:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:07,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:42:07,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:08,469 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 0 proven. 874 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:42:08,469 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 0 proven. 874 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:42:09,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117747288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:42:09,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:42:09,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2024-11-28 02:42:09,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821065341] [2024-11-28 02:42:09,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:09,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:42:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:09,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:42:09,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:42:09,931 INFO L87 Difference]: Start difference. First operand 1732 states and 2390 transitions. Second operand has 16 states, 16 states have (on average 105.0625) internal successors, (1681), 16 states have internal predecessors, (1681), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 02:42:21,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:42:26,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:26,147 INFO L93 Difference]: Finished difference Result 17227 states and 24137 transitions. [2024-11-28 02:42:26,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-28 02:42:26,149 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 105.0625) internal successors, (1681), 16 states have internal predecessors, (1681), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 681 [2024-11-28 02:42:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:26,225 INFO L225 Difference]: With dead ends: 17227 [2024-11-28 02:42:26,226 INFO L226 Difference]: Without dead ends: 16125 [2024-11-28 02:42:26,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1452 GetRequests, 1384 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1513 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1240, Invalid=3590, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 02:42:26,232 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 35694 mSDsluCounter, 16276 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35694 SdHoareTripleChecker+Valid, 17877 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:26,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35694 Valid, 17877 Invalid, 2957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2024-11-28 02:42:26,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-28 02:42:26,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 9563. [2024-11-28 02:42:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9563 states, 9433 states have (on average 1.365631294392028) internal successors, (12882), 9449 states have internal predecessors, (12882), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 114 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-28 02:42:26,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9563 states to 9563 states and 13134 transitions. [2024-11-28 02:42:26,638 INFO L78 Accepts]: Start accepts. Automaton has 9563 states and 13134 transitions. Word has length 681 [2024-11-28 02:42:26,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:26,640 INFO L471 AbstractCegarLoop]: Abstraction has 9563 states and 13134 transitions. [2024-11-28 02:42:26,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 105.0625) internal successors, (1681), 16 states have internal predecessors, (1681), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 02:42:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 9563 states and 13134 transitions. [2024-11-28 02:42:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1574 [2024-11-28 02:42:26,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:26,751 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:26,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:42:26,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a09e8c-32c0-4d48-afcd-b1c06b3fe464/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:26,952 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:42:26,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1759998938, now seen corresponding path program 1 times [2024-11-28 02:42:26,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:26,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363161196] [2024-11-28 02:42:26,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:26,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms