./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f08d75c904d21d6573220c7737d451cd978e8a22a153e855f8d685d88a1eb60 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:08:10,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:08:10,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:08:10,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:08:10,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:08:10,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:08:10,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:08:10,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:08:10,266 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:08:10,271 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:08:10,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:08:10,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:08:10,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:08:10,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:08:10,276 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:08:10,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:08:10,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:08:10,277 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:08:10,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:08:10,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:08:10,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:08:10,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:08:10,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:08:10,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:08:10,282 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:08:10,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:08:10,283 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:08:10,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:08:10,284 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:08:10,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:08:10,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:08:10,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:08:10,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:08:10,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:10,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:08:10,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:08:10,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:08:10,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:08:10,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:08:10,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:08:10,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:08:10,290 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:08:10,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:08:10,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:08:10,291 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f08d75c904d21d6573220c7737d451cd978e8a22a153e855f8d685d88a1eb60 [2023-11-21 22:08:10,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:08:10,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:08:10,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:08:10,676 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:08:10,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:08:10,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i [2023-11-21 22:08:13,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:08:14,255 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:08:14,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/sv-benchmarks/c/ldv-memsafety/memleaks_test12-2.i [2023-11-21 22:08:14,288 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/data/5e3489afe/86b3cc75a9e84a8b8a3e80abfd6ac169/FLAG7674b4554 [2023-11-21 22:08:14,307 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/data/5e3489afe/86b3cc75a9e84a8b8a3e80abfd6ac169 [2023-11-21 22:08:14,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:08:14,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:08:14,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:14,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:08:14,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:08:14,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:14" (1/1) ... [2023-11-21 22:08:14,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c919e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:14, skipping insertion in model container [2023-11-21 22:08:14,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:14" (1/1) ... [2023-11-21 22:08:14,414 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:08:14,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:14,885 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:08:14,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:15,006 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:15,012 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:08:15,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15 WrapperNode [2023-11-21 22:08:15,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:15,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:15,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:08:15,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:08:15,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,089 INFO L138 Inliner]: procedures = 174, calls = 145, calls flagged for inlining = 33, calls inlined = 20, statements flattened = 329 [2023-11-21 22:08:15,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:15,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:08:15,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:08:15,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:08:15,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,109 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,236 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:08:15,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:15,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:15,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:15,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:15,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (1/1) ... [2023-11-21 22:08:15,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:15,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:15,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:15,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:08:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:08:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:08:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:08:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:08:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:08:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-11-21 22:08:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-11-21 22:08:15,377 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-11-21 22:08:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-11-21 22:08:15,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:08:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:08:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:08:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:08:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2023-11-21 22:08:15,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2023-11-21 22:08:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:08:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:08:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:08:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:08:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:08:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:08:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:08:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:15,667 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:15,670 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:16,216 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:16,463 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:16,463 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:08:16,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:16 BoogieIcfgContainer [2023-11-21 22:08:16,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:16,468 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:16,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:16,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:16,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:08:14" (1/3) ... [2023-11-21 22:08:16,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc22f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:16, skipping insertion in model container [2023-11-21 22:08:16,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:15" (2/3) ... [2023-11-21 22:08:16,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc22f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:16, skipping insertion in model container [2023-11-21 22:08:16,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:16" (3/3) ... [2023-11-21 22:08:16,475 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test12-2.i [2023-11-21 22:08:16,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:16,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 22:08:16,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:16,562 INFO L357 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, mHoare=true, 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;@7ae06f3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:16,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 22:08:16,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 55 states have (on average 1.4) internal successors, (77), 59 states have internal predecessors, (77), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:08:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-21 22:08:16,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:16,581 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:16,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:08:16,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:16,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1742588733, now seen corresponding path program 1 times [2023-11-21 22:08:16,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:16,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899333176] [2023-11-21 22:08:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:16,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:08:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:08:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:08:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:08:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:08:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:08:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:08:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-21 22:08:17,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:17,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899333176] [2023-11-21 22:08:17,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899333176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:17,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:17,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:08:17,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081913141] [2023-11-21 22:08:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:17,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:17,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:17,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:17,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:17,770 INFO L87 Difference]: Start difference. First operand has 78 states, 55 states have (on average 1.4) internal successors, (77), 59 states have internal predecessors, (77), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 22:08:18,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:18,234 INFO L93 Difference]: Finished difference Result 142 states and 192 transitions. [2023-11-21 22:08:18,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:08:18,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2023-11-21 22:08:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:18,248 INFO L225 Difference]: With dead ends: 142 [2023-11-21 22:08:18,248 INFO L226 Difference]: Without dead ends: 57 [2023-11-21 22:08:18,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:18,259 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 18 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:18,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 315 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:08:18,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-21 22:08:18,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2023-11-21 22:08:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 37 states have internal predecessors, (42), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:08:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2023-11-21 22:08:18,323 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 56 [2023-11-21 22:08:18,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:18,328 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2023-11-21 22:08:18,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 22:08:18,329 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2023-11-21 22:08:18,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-21 22:08:18,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:18,336 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:18,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:08:18,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:08:18,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash 744647708, now seen corresponding path program 1 times [2023-11-21 22:08:18,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:18,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247591040] [2023-11-21 22:08:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:18,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:08:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:08:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:08:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:08:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:08:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:08:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:08:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:08:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,699 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-21 22:08:18,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:18,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247591040] [2023-11-21 22:08:18,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247591040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:18,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:18,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:08:18,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009144651] [2023-11-21 22:08:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:18,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:18,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:18,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:18,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:18,713 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-21 22:08:18,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:18,974 INFO L93 Difference]: Finished difference Result 106 states and 132 transitions. [2023-11-21 22:08:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:08:18,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 59 [2023-11-21 22:08:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:18,977 INFO L225 Difference]: With dead ends: 106 [2023-11-21 22:08:18,977 INFO L226 Difference]: Without dead ends: 70 [2023-11-21 22:08:18,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:08:18,979 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:18,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 180 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:08:18,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-21 22:08:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 54. [2023-11-21 22:08:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:08:18,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2023-11-21 22:08:18,994 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 59 [2023-11-21 22:08:18,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:18,995 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2023-11-21 22:08:18,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-21 22:08:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2023-11-21 22:08:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-21 22:08:18,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:18,998 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-11-21 22:08:18,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:08:19,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:08:19,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash 154835940, now seen corresponding path program 1 times [2023-11-21 22:08:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:19,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958933060] [2023-11-21 22:08:19,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:19,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:08:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:08:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:08:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:08:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:08:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:08:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:08:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:08:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 22:08:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-21 22:08:19,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:19,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958933060] [2023-11-21 22:08:19,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958933060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:19,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:08:19,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573631720] [2023-11-21 22:08:19,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:19,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:19,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:19,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:19,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:19,402 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-21 22:08:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:19,646 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2023-11-21 22:08:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:08:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 65 [2023-11-21 22:08:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:19,649 INFO L225 Difference]: With dead ends: 92 [2023-11-21 22:08:19,649 INFO L226 Difference]: Without dead ends: 57 [2023-11-21 22:08:19,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:08:19,651 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 16 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:19,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 176 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:08:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-21 22:08:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2023-11-21 22:08:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:08:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2023-11-21 22:08:19,663 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 65 [2023-11-21 22:08:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:19,664 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2023-11-21 22:08:19,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-21 22:08:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2023-11-21 22:08:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-21 22:08:19,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:19,667 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-11-21 22:08:19,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:08:19,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:08:19,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:19,668 INFO L85 PathProgramCache]: Analyzing trace with hash 632345644, now seen corresponding path program 1 times [2023-11-21 22:08:19,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:19,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492964302] [2023-11-21 22:08:19,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:19,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:08:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:08:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:08:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:08:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:08:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:08:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:08:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:08:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 22:08:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-21 22:08:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,100 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-21 22:08:20,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:20,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492964302] [2023-11-21 22:08:20,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492964302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:20,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:20,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:08:20,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955753081] [2023-11-21 22:08:20,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:20,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:20,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:20,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:08:20,104 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-21 22:08:20,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:20,412 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2023-11-21 22:08:20,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:08:20,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2023-11-21 22:08:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:20,415 INFO L225 Difference]: With dead ends: 80 [2023-11-21 22:08:20,415 INFO L226 Difference]: Without dead ends: 78 [2023-11-21 22:08:20,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:08:20,417 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 18 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:20,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 155 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:20,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-21 22:08:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2023-11-21 22:08:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 52 states have (on average 1.0769230769230769) internal successors, (56), 53 states have internal predecessors, (56), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-21 22:08:20,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2023-11-21 22:08:20,429 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 69 [2023-11-21 22:08:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:20,430 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2023-11-21 22:08:20,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-21 22:08:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2023-11-21 22:08:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-21 22:08:20,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:20,433 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-21 22:08:20,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:08:20,433 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:08:20,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:20,434 INFO L85 PathProgramCache]: Analyzing trace with hash 986263909, now seen corresponding path program 1 times [2023-11-21 22:08:20,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:20,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42365236] [2023-11-21 22:08:20,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:20,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:08:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:08:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:08:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:08:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:08:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:08:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:08:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:08:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 22:08:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-21 22:08:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:08:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-21 22:08:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:08:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-21 22:08:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-21 22:08:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-21 22:08:21,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:21,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42365236] [2023-11-21 22:08:21,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42365236] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:21,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661725173] [2023-11-21 22:08:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:21,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:21,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:21,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:08:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:08:21,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-21 22:08:21,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:21,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661725173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:21,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:21,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-21 22:08:21,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177946206] [2023-11-21 22:08:21,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:21,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:21,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:21,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:21,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:08:21,718 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-21 22:08:21,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:21,855 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2023-11-21 22:08:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:21,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2023-11-21 22:08:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:21,857 INFO L225 Difference]: With dead ends: 75 [2023-11-21 22:08:21,858 INFO L226 Difference]: Without dead ends: 74 [2023-11-21 22:08:21,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:08:21,859 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 8 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:21,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 254 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:08:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-21 22:08:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-21 22:08:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-21 22:08:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2023-11-21 22:08:21,881 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 102 [2023-11-21 22:08:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:21,884 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2023-11-21 22:08:21,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-21 22:08:21,884 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2023-11-21 22:08:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-21 22:08:21,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:21,891 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-21 22:08:21,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:22,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:22,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:08:22,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:22,108 INFO L85 PathProgramCache]: Analyzing trace with hash 509410277, now seen corresponding path program 1 times [2023-11-21 22:08:22,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:22,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164907518] [2023-11-21 22:08:22,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:22,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:08:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:08:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:08:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:08:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:08:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:08:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:08:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:08:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 22:08:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-21 22:08:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:08:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-21 22:08:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:08:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-21 22:08:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-21 22:08:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-21 22:08:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:22,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164907518] [2023-11-21 22:08:22,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164907518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:22,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511234849] [2023-11-21 22:08:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:22,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:22,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:22,716 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:22,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:08:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:23,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:08:23,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-21 22:08:23,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-21 22:08:23,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511234849] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:23,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:23,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2023-11-21 22:08:23,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65738603] [2023-11-21 22:08:23,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:23,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:08:23,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:23,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:08:23,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:08:23,464 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 6 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-21 22:08:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:23,916 INFO L93 Difference]: Finished difference Result 141 states and 180 transitions. [2023-11-21 22:08:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 22:08:23,916 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 6 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 103 [2023-11-21 22:08:23,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:23,919 INFO L225 Difference]: With dead ends: 141 [2023-11-21 22:08:23,919 INFO L226 Difference]: Without dead ends: 140 [2023-11-21 22:08:23,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:08:23,920 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 25 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:23,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 253 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:08:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-21 22:08:23,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2023-11-21 22:08:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 100 states have (on average 1.03) internal successors, (103), 100 states have internal predecessors, (103), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-21 22:08:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2023-11-21 22:08:23,938 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 103 [2023-11-21 22:08:23,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:23,939 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2023-11-21 22:08:23,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 6 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-21 22:08:23,939 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2023-11-21 22:08:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-11-21 22:08:23,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:23,942 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-21 22:08:23,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:24,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-21 22:08:24,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:08:24,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:24,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1702767550, now seen corresponding path program 2 times [2023-11-21 22:08:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:24,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346526155] [2023-11-21 22:08:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:08:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:08:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:08:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:08:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:08:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:08:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:08:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:08:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:08:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:08:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-21 22:08:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-21 22:08:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:08:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-21 22:08:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:08:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-21 22:08:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-21 22:08:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-21 22:08:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-21 22:08:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-21 22:08:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-21 22:08:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-21 22:08:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-21 22:08:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-21 22:08:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-21 22:08:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-21 22:08:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-21 22:08:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-21 22:08:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-21 22:08:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-21 22:08:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-21 22:08:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-21 22:08:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,468 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 64 proven. 80 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-11-21 22:08:25,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346526155] [2023-11-21 22:08:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346526155] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394216571] [2023-11-21 22:08:25,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:08:25,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:25,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:25,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:25,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:08:26,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:08:26,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:08:26,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 1940 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 22:08:26,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-21 22:08:26,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:26,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394216571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:26,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:26,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2023-11-21 22:08:26,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329300813] [2023-11-21 22:08:26,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:26,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:08:26,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:08:26,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-21 22:08:26,538 INFO L87 Difference]: Start difference. First operand 137 states and 167 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:08:26,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:26,697 INFO L93 Difference]: Finished difference Result 147 states and 175 transitions. [2023-11-21 22:08:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:08:26,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 202 [2023-11-21 22:08:26,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:26,699 INFO L225 Difference]: With dead ends: 147 [2023-11-21 22:08:26,699 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:08:26,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:08:26,701 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 4 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:26,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 225 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:08:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:08:26,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:08:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-21 22:08:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:08:26,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2023-11-21 22:08:26,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:26,704 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:08:26,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:08:26,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:08:26,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:08:26,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 22:08:26,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 22:08:26,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:26,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-21 22:08:26,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:08:27,100 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2023-11-21 22:08:27,100 INFO L902 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: true [2023-11-21 22:08:27,100 INFO L899 garLoopResultBuilder]: For program point #Ultimate.C_memcpyEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:08:27,100 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-21 22:08:27,101 INFO L899 garLoopResultBuilder]: For program point ldv_msg_freeEXIT(lines 591 596) no Hoare annotation was computed. [2023-11-21 22:08:27,101 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 591 596) the Hoare annotation is: (= |old(#valid)| |#valid|) [2023-11-21 22:08:27,101 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 538 542) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-21 22:08:27,102 INFO L899 garLoopResultBuilder]: For program point LDV_INIT_LIST_HEADEXIT(lines 538 542) no Hoare annotation was computed. [2023-11-21 22:08:27,102 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 543 551) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2023-11-21 22:08:27,102 INFO L899 garLoopResultBuilder]: For program point __ldv_list_addEXIT(lines 543 551) no Hoare annotation was computed. [2023-11-21 22:08:27,103 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-21 22:08:27,103 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2023-11-21 22:08:27,103 INFO L902 garLoopResultBuilder]: At program point master_xfer_err_fill#1(lines 793 812) the Hoare annotation is: true [2023-11-21 22:08:27,103 INFO L899 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2023-11-21 22:08:27,103 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 601) no Hoare annotation was computed. [2023-11-21 22:08:27,104 INFO L902 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: true [2023-11-21 22:08:27,104 INFO L899 garLoopResultBuilder]: For program point L846-1(line 846) no Hoare annotation was computed. [2023-11-21 22:08:27,104 INFO L895 garLoopResultBuilder]: At program point L797-2(lines 797 805) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and .cse0 (<= |ULTIMATE.start_master_xfer_~i~0#1| 2147483645) (<= 2 |ULTIMATE.start_master_xfer_~i~0#1|)) (and .cse0 (= |ULTIMATE.start_master_xfer_~i~0#1| 1)) (and (= |ULTIMATE.start_master_xfer_~i~0#1| 0) .cse0))) [2023-11-21 22:08:27,104 INFO L902 garLoopResultBuilder]: At program point L880(line 880) the Hoare annotation is: true [2023-11-21 22:08:27,104 INFO L899 garLoopResultBuilder]: For program point L880-1(line 880) no Hoare annotation was computed. [2023-11-21 22:08:27,104 INFO L899 garLoopResultBuilder]: For program point L847(line 847) no Hoare annotation was computed. [2023-11-21 22:08:27,105 INFO L899 garLoopResultBuilder]: For program point L881(line 881) no Hoare annotation was computed. [2023-11-21 22:08:27,106 INFO L902 garLoopResultBuilder]: At program point L848(line 848) the Hoare annotation is: true [2023-11-21 22:08:27,106 INFO L899 garLoopResultBuilder]: For program point L848-1(line 848) no Hoare annotation was computed. [2023-11-21 22:08:27,106 INFO L899 garLoopResultBuilder]: For program point ldv_msg_fill_returnLabel#1(lines 583 590) no Hoare annotation was computed. [2023-11-21 22:08:27,106 INFO L899 garLoopResultBuilder]: For program point L799(line 799) no Hoare annotation was computed. [2023-11-21 22:08:27,106 INFO L899 garLoopResultBuilder]: For program point master_xfer_returnLabel#1(lines 793 812) no Hoare annotation was computed. [2023-11-21 22:08:27,106 INFO L895 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and .cse0 (= |ULTIMATE.start_master_xfer_~i~0#1| 1)) (and (= |ULTIMATE.start_master_xfer_~i~0#1| 0) .cse0))) [2023-11-21 22:08:27,107 INFO L899 garLoopResultBuilder]: For program point L585-1(line 585) no Hoare annotation was computed. [2023-11-21 22:08:27,108 INFO L899 garLoopResultBuilder]: For program point L899(lines 876 910) no Hoare annotation was computed. [2023-11-21 22:08:27,108 INFO L899 garLoopResultBuilder]: For program point L833(lines 833 838) no Hoare annotation was computed. [2023-11-21 22:08:27,108 INFO L899 garLoopResultBuilder]: For program point L833-2(lines 833 838) no Hoare annotation was computed. [2023-11-21 22:08:27,108 INFO L899 garLoopResultBuilder]: For program point L586(line 586) no Hoare annotation was computed. [2023-11-21 22:08:27,109 INFO L899 garLoopResultBuilder]: For program point ldv_submit_msg_returnLabel#1(lines 597 603) no Hoare annotation was computed. [2023-11-21 22:08:27,109 INFO L902 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: true [2023-11-21 22:08:27,109 INFO L899 garLoopResultBuilder]: For program point L801(line 801) no Hoare annotation was computed. [2023-11-21 22:08:27,109 INFO L899 garLoopResultBuilder]: For program point L834-1(line 834) no Hoare annotation was computed. [2023-11-21 22:08:27,109 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:08:27,110 INFO L902 garLoopResultBuilder]: At program point L884(line 884) the Hoare annotation is: true [2023-11-21 22:08:27,111 INFO L899 garLoopResultBuilder]: For program point L884-1(line 884) no Hoare annotation was computed. [2023-11-21 22:08:27,111 INFO L899 garLoopResultBuilder]: For program point L851(line 851) no Hoare annotation was computed. [2023-11-21 22:08:27,111 INFO L899 garLoopResultBuilder]: For program point alloc_fix_12_returnLabel#1(lines 841 866) no Hoare annotation was computed. [2023-11-21 22:08:27,111 INFO L895 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and .cse0 (= |ULTIMATE.start_master_xfer_~i~0#1| 1)) (and (= |ULTIMATE.start_master_xfer_~i~0#1| 0) .cse0))) [2023-11-21 22:08:27,111 INFO L899 garLoopResultBuilder]: For program point L587-1(line 587) no Hoare annotation was computed. [2023-11-21 22:08:27,111 INFO L899 garLoopResultBuilder]: For program point L901(lines 876 910) no Hoare annotation was computed. [2023-11-21 22:08:27,112 INFO L899 garLoopResultBuilder]: For program point L885(line 885) no Hoare annotation was computed. [2023-11-21 22:08:27,112 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 859) no Hoare annotation was computed. [2023-11-21 22:08:27,112 INFO L899 garLoopResultBuilder]: For program point L803(line 803) no Hoare annotation was computed. [2023-11-21 22:08:27,112 INFO L899 garLoopResultBuilder]: For program point L903(lines 876 910) no Hoare annotation was computed. [2023-11-21 22:08:27,112 INFO L899 garLoopResultBuilder]: For program point L804(line 804) no Hoare annotation was computed. [2023-11-21 22:08:27,112 INFO L899 garLoopResultBuilder]: For program point L804-1(line 804) no Hoare annotation was computed. [2023-11-21 22:08:27,113 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 804) no Hoare annotation was computed. [2023-11-21 22:08:27,113 INFO L902 garLoopResultBuilder]: At program point L887(line 887) the Hoare annotation is: true [2023-11-21 22:08:27,113 INFO L899 garLoopResultBuilder]: For program point L887-1(line 887) no Hoare annotation was computed. [2023-11-21 22:08:27,113 INFO L899 garLoopResultBuilder]: For program point L854(line 854) no Hoare annotation was computed. [2023-11-21 22:08:27,113 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 804) no Hoare annotation was computed. [2023-11-21 22:08:27,113 INFO L902 garLoopResultBuilder]: At program point L607-2(lines 607 610) the Hoare annotation is: true [2023-11-21 22:08:27,113 INFO L899 garLoopResultBuilder]: For program point L888(line 888) no Hoare annotation was computed. [2023-11-21 22:08:27,114 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:08:27,114 INFO L899 garLoopResultBuilder]: For program point L905(lines 876 910) no Hoare annotation was computed. [2023-11-21 22:08:27,114 INFO L899 garLoopResultBuilder]: For program point L856(line 856) no Hoare annotation was computed. [2023-11-21 22:08:27,114 INFO L895 garLoopResultBuilder]: At program point L559(line 559) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and .cse0 (= |ULTIMATE.start_master_xfer_~i~0#1| 1)) (and (= |ULTIMATE.start_master_xfer_~i~0#1| 0) .cse0))) [2023-11-21 22:08:27,115 INFO L899 garLoopResultBuilder]: For program point L559-1(line 559) no Hoare annotation was computed. [2023-11-21 22:08:27,115 INFO L902 garLoopResultBuilder]: At program point L609(line 609) the Hoare annotation is: true [2023-11-21 22:08:27,115 INFO L895 garLoopResultBuilder]: At program point L576(line 576) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and .cse0 (= |ULTIMATE.start_master_xfer_~i~0#1| 1)) (and (= |ULTIMATE.start_master_xfer_~i~0#1| 0) .cse0))) [2023-11-21 22:08:27,115 INFO L899 garLoopResultBuilder]: For program point L609-1(lines 607 610) no Hoare annotation was computed. [2023-11-21 22:08:27,115 INFO L899 garLoopResultBuilder]: For program point L576-1(line 576) no Hoare annotation was computed. [2023-11-21 22:08:27,116 INFO L899 garLoopResultBuilder]: For program point alloc_fix_12_err#1(lines 841 866) no Hoare annotation was computed. [2023-11-21 22:08:27,116 INFO L899 garLoopResultBuilder]: For program point L907(lines 876 910) no Hoare annotation was computed. [2023-11-21 22:08:27,116 INFO L899 garLoopResultBuilder]: For program point L577(lines 577 580) no Hoare annotation was computed. [2023-11-21 22:08:27,116 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 577 580) no Hoare annotation was computed. [2023-11-21 22:08:27,116 INFO L902 garLoopResultBuilder]: At program point L891(line 891) the Hoare annotation is: true [2023-11-21 22:08:27,116 INFO L899 garLoopResultBuilder]: For program point L891-1(line 891) no Hoare annotation was computed. [2023-11-21 22:08:27,116 INFO L899 garLoopResultBuilder]: For program point L809(lines 793 812) no Hoare annotation was computed. [2023-11-21 22:08:27,117 INFO L899 garLoopResultBuilder]: For program point L892(line 892) no Hoare annotation was computed. [2023-11-21 22:08:27,117 INFO L895 garLoopResultBuilder]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_master_xfer_~num#1| 2))) (or (and .cse0 (= |ULTIMATE.start_master_xfer_~i~0#1| 1)) (and (= |ULTIMATE.start_master_xfer_~i~0#1| 0) .cse0))) [2023-11-21 22:08:27,117 INFO L902 garLoopResultBuilder]: At program point L877(line 877) the Hoare annotation is: true [2023-11-21 22:08:27,117 INFO L899 garLoopResultBuilder]: For program point L877-1(line 877) no Hoare annotation was computed. [2023-11-21 22:08:27,120 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-21 22:08:27,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:08:27,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:08:27 BoogieIcfgContainer [2023-11-21 22:08:27,137 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:08:27,137 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:08:27,137 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:08:27,138 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:08:27,138 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:16" (3/4) ... [2023-11-21 22:08:27,141 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:08:27,144 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-21 22:08:27,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2023-11-21 22:08:27,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_free [2023-11-21 22:08:27,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2023-11-21 22:08:27,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2023-11-21 22:08:27,167 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2023-11-21 22:08:27,168 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-21 22:08:27,169 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-21 22:08:27,170 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:08:27,344 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:08:27,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:08:27,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:08:27,346 INFO L158 Benchmark]: Toolchain (without parser) took 13029.05ms. Allocated memory was 121.6MB in the beginning and 287.3MB in the end (delta: 165.7MB). Free memory was 82.5MB in the beginning and 136.5MB in the end (delta: -54.0MB). Peak memory consumption was 114.0MB. Max. memory is 16.1GB. [2023-11-21 22:08:27,347 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 121.6MB. Free memory was 94.1MB in the beginning and 93.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:08:27,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.83ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 57.5MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 22:08:27,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.57ms. Allocated memory is still 121.6MB. Free memory was 57.5MB in the beginning and 54.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:08:27,348 INFO L158 Benchmark]: Boogie Preprocessor took 186.80ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 54.0MB in the beginning and 115.0MB in the end (delta: -60.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-11-21 22:08:27,348 INFO L158 Benchmark]: RCFGBuilder took 1187.95ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 102.8MB in the end (delta: 12.2MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-21 22:08:27,349 INFO L158 Benchmark]: TraceAbstraction took 10669.04ms. Allocated memory was 146.8MB in the beginning and 287.3MB in the end (delta: 140.5MB). Free memory was 101.7MB in the beginning and 145.9MB in the end (delta: -44.2MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2023-11-21 22:08:27,349 INFO L158 Benchmark]: Witness Printer took 208.16ms. Allocated memory is still 287.3MB. Free memory was 144.9MB in the beginning and 136.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:08:27,352 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 121.6MB. Free memory was 94.1MB in the beginning and 93.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.83ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 57.5MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.57ms. Allocated memory is still 121.6MB. Free memory was 57.5MB in the beginning and 54.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 186.80ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 54.0MB in the beginning and 115.0MB in the end (delta: -60.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1187.95ms. Allocated memory is still 146.8MB. Free memory was 115.0MB in the beginning and 102.8MB in the end (delta: 12.2MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10669.04ms. Allocated memory was 146.8MB in the beginning and 287.3MB in the end (delta: 140.5MB). Free memory was 101.7MB in the beginning and 145.9MB in the end (delta: -44.2MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * Witness Printer took 208.16ms. Allocated memory is still 287.3MB. Free memory was 144.9MB in the beginning and 136.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 7, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 1558 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1132 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 916 IncrementalHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 426 mSDtfsCounter, 916 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 775 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=6, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 28 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 92 PreInvPairs, 111 NumberOfFragments, 153 HoareAnnotationTreeSize, 92 FomulaSimplifications, 4359 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1063 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1155 ConstructedInterpolants, 0 QuantifiedInterpolants, 2955 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4037 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 1802/1965 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 797]: Loop Invariant Derived loop invariant: (((((num <= 2) && (i <= 2147483645)) && (2 <= i)) || ((num <= 2) && (i == 1))) || ((i == 0) && (num <= 2))) RESULT: Ultimate proved your program to be correct! [2023-11-21 22:08:27,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c1e42d2-a938-49ce-b278-71aaf83dc952/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE