./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/cut-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/cut-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu --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 64bit --witnessprinter.graph.data.programhash d445b49cc9b8ac35e0bc0720b38b344ba4949e5ca588b470eb7e5c5212b50a30 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:38,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:38,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:33:38,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:38,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:39,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:39,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:39,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:39,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:39,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:39,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:39,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:39,033 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:39,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:39,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:39,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:39,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:39,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:39,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:39,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:39,041 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:33:39,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:33:39,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:39,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:39,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:39,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:39,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:39,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:39,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:39,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:39,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:39,050 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:39,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:39,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:39,051 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:39,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:39,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:39,053 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:39,054 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_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d445b49cc9b8ac35e0bc0720b38b344ba4949e5ca588b470eb7e5c5212b50a30 [2023-11-19 07:33:39,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:39,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:39,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:39,504 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:39,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:39,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/cut-1.i [2023-11-19 07:33:42,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:43,276 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:43,277 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/sv-benchmarks/c/busybox-1.22.0/cut-1.i [2023-11-19 07:33:43,318 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/data/a4011f0fe/b39925f367fa4a409852bd66203986eb/FLAG72b28dad1 [2023-11-19 07:33:43,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/data/a4011f0fe/b39925f367fa4a409852bd66203986eb [2023-11-19 07:33:43,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:43,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:43,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:43,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:43,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:43,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:43" (1/1) ... [2023-11-19 07:33:43,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671dcd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:43, skipping insertion in model container [2023-11-19 07:33:43,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:43" (1/1) ... [2023-11-19 07:33:43,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:45,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:45,257 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:45,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:45,649 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,649 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,649 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,649 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,649 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,650 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,650 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,650 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,650 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,650 WARN L675 CHandler]: The function strtok is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,650 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:33:45,658 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:45,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45 WrapperNode [2023-11-19 07:33:45,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:45,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:45,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:45,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:45,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:45,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:45,860 INFO L138 Inliner]: procedures = 581, calls = 569, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 2197 [2023-11-19 07:33:45,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:45,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:45,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:45,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:45,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:45,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:45,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:45,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:46,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:46,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:46,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:46,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:46,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:46,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:46,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:46,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:46,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (1/1) ... [2023-11-19 07:33:46,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:46,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:46,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:46,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-19 07:33:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-19 07:33:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-19 07:33:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure xatoi_positive [2023-11-19 07:33:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoi_positive [2023-11-19 07:33:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-19 07:33:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-19 07:33:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 07:33:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:33:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-11-19 07:33:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-11-19 07:33:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:33:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 07:33:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 07:33:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-19 07:33:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:33:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:33:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:33:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-19 07:33:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:33:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:33:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:33:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:33:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 07:33:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 07:33:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:33:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:33:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2023-11-19 07:33:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2023-11-19 07:33:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 07:33:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:33:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:33:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:33:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:33:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:33:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:33:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-19 07:33:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:33:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-11-19 07:33:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:33:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 07:33:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2023-11-19 07:33:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 07:33:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 07:33:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 07:33:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:46,803 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:46,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:48,836 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:48,860 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:48,860 INFO L302 CfgBuilder]: Removed 35 assume(true) statements. [2023-11-19 07:33:48,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:48 BoogieIcfgContainer [2023-11-19 07:33:48,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:48,878 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:48,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:48,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:48,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:43" (1/3) ... [2023-11-19 07:33:48,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2539ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:48, skipping insertion in model container [2023-11-19 07:33:48,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:45" (2/3) ... [2023-11-19 07:33:48,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2539ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:48, skipping insertion in model container [2023-11-19 07:33:48,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:48" (3/3) ... [2023-11-19 07:33:48,889 INFO L112 eAbstractionObserver]: Analyzing ICFG cut-1.i [2023-11-19 07:33:48,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:48,916 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 97 error locations. [2023-11-19 07:33:49,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:33:49,024 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;@7ffcc5b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:33:49,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-11-19 07:33:49,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 704 states, 556 states have (on average 1.6942446043165467) internal successors, (942), 652 states have internal predecessors, (942), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-19 07:33:49,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:33:49,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:49,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:33:49,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:49,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:49,051 INFO L85 PathProgramCache]: Analyzing trace with hash 14501509, now seen corresponding path program 1 times [2023-11-19 07:33:49,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:49,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536946576] [2023-11-19 07:33:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:49,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:49,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:49,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536946576] [2023-11-19 07:33:49,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536946576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:49,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:49,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:49,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334139809] [2023-11-19 07:33:49,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:49,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:49,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:49,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:49,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:49,732 INFO L87 Difference]: Start difference. First operand has 704 states, 556 states have (on average 1.6942446043165467) internal successors, (942), 652 states have internal predecessors, (942), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 07:33:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:49,945 INFO L93 Difference]: Finished difference Result 1394 states and 2052 transitions. [2023-11-19 07:33:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:49,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 07:33:49,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:49,967 INFO L225 Difference]: With dead ends: 1394 [2023-11-19 07:33:49,968 INFO L226 Difference]: Without dead ends: 690 [2023-11-19 07:33:49,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:49,986 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 1 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:49,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1894 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:50,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-19 07:33:50,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2023-11-19 07:33:50,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 543 states have (on average 1.6243093922651934) internal successors, (882), 649 states have internal predecessors, (882), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:50,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 951 transitions. [2023-11-19 07:33:50,094 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 951 transitions. Word has length 4 [2023-11-19 07:33:50,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:50,094 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 951 transitions. [2023-11-19 07:33:50,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 07:33:50,095 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 951 transitions. [2023-11-19 07:33:50,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:33:50,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:50,096 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-19 07:33:50,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:33:50,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:50,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:50,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1776759836, now seen corresponding path program 1 times [2023-11-19 07:33:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:50,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955796185] [2023-11-19 07:33:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:50,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:50,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955796185] [2023-11-19 07:33:50,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955796185] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615804908] [2023-11-19 07:33:50,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:50,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:50,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:50,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:50,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:33:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:50,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:33:50,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:50,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:50,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:50,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615804908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:50,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:50,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:33:50,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000346457] [2023-11-19 07:33:50,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:50,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:33:50,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:50,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:33:50,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:50,903 INFO L87 Difference]: Start difference. First operand 690 states and 951 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-19 07:33:50,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:50,993 INFO L93 Difference]: Finished difference Result 690 states and 951 transitions. [2023-11-19 07:33:50,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:33:51,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:33:51,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:51,010 INFO L225 Difference]: With dead ends: 690 [2023-11-19 07:33:51,011 INFO L226 Difference]: Without dead ends: 689 [2023-11-19 07:33:51,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:51,013 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 5 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:51,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1882 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:51,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-11-19 07:33:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2023-11-19 07:33:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 543 states have (on average 1.6224677716390423) internal successors, (881), 648 states have internal predecessors, (881), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 950 transitions. [2023-11-19 07:33:51,082 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 950 transitions. Word has length 7 [2023-11-19 07:33:51,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:51,083 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 950 transitions. [2023-11-19 07:33:51,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-19 07:33:51,083 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 950 transitions. [2023-11-19 07:33:51,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:33:51,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:51,084 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-19 07:33:51,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:51,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:51,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:51,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash 755020418, now seen corresponding path program 1 times [2023-11-19 07:33:51,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:51,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841973388] [2023-11-19 07:33:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:51,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:33:51,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:51,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841973388] [2023-11-19 07:33:51,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841973388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:51,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:51,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:51,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604281112] [2023-11-19 07:33:51,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:51,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:51,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:51,470 INFO L87 Difference]: Start difference. First operand 689 states and 950 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-19 07:33:51,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:51,512 INFO L93 Difference]: Finished difference Result 689 states and 950 transitions. [2023-11-19 07:33:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:51,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:33:51,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:51,518 INFO L225 Difference]: With dead ends: 689 [2023-11-19 07:33:51,519 INFO L226 Difference]: Without dead ends: 688 [2023-11-19 07:33:51,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:51,521 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 0 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:51,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1883 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2023-11-19 07:33:51,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 686. [2023-11-19 07:33:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 541 states have (on average 1.6229205175600738) internal successors, (878), 645 states have internal predecessors, (878), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:51,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 947 transitions. [2023-11-19 07:33:51,549 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 947 transitions. Word has length 8 [2023-11-19 07:33:51,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:51,549 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 947 transitions. [2023-11-19 07:33:51,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-19 07:33:51,550 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 947 transitions. [2023-11-19 07:33:51,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:33:51,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:51,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:51,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:33:51,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:51,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:51,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1118685560, now seen corresponding path program 1 times [2023-11-19 07:33:51,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:51,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658344890] [2023-11-19 07:33:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:51,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:51,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:51,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658344890] [2023-11-19 07:33:51,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658344890] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:51,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015833979] [2023-11-19 07:33:51,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:51,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:51,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:51,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:51,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:33:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:52,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:33:52,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:33:52,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:52,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015833979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:52,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:52,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:33:52,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349763467] [2023-11-19 07:33:52,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:52,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:52,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:52,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:52,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:52,241 INFO L87 Difference]: Start difference. First operand 686 states and 947 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:52,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:52,311 INFO L93 Difference]: Finished difference Result 686 states and 947 transitions. [2023-11-19 07:33:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:52,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-19 07:33:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:52,320 INFO L225 Difference]: With dead ends: 686 [2023-11-19 07:33:52,321 INFO L226 Difference]: Without dead ends: 684 [2023-11-19 07:33:52,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:52,325 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 657 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:52,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1200 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-11-19 07:33:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2023-11-19 07:33:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 541 states have (on average 1.6192236598890943) internal successors, (876), 643 states have internal predecessors, (876), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 945 transitions. [2023-11-19 07:33:52,363 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 945 transitions. Word has length 13 [2023-11-19 07:33:52,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:52,365 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 945 transitions. [2023-11-19 07:33:52,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:52,370 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 945 transitions. [2023-11-19 07:33:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:33:52,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:52,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:52,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:52,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:52,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:52,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:52,593 INFO L85 PathProgramCache]: Analyzing trace with hash 319514487, now seen corresponding path program 1 times [2023-11-19 07:33:52,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:52,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426798103] [2023-11-19 07:33:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:52,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426798103] [2023-11-19 07:33:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426798103] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:52,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545032134] [2023-11-19 07:33:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:52,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:52,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:52,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:52,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:33:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:53,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:33:53,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:53,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:53,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:53,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545032134] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:53,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:33:53,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:33:53,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971901349] [2023-11-19 07:33:53,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:53,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:53,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:53,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:53,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:53,281 INFO L87 Difference]: Start difference. First operand 684 states and 945 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:53,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:53,371 INFO L93 Difference]: Finished difference Result 1371 states and 1895 transitions. [2023-11-19 07:33:53,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:33:53,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-19 07:33:53,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:53,376 INFO L225 Difference]: With dead ends: 1371 [2023-11-19 07:33:53,377 INFO L226 Difference]: Without dead ends: 693 [2023-11-19 07:33:53,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:53,383 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 4 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:53,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1879 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-11-19 07:33:53,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2023-11-19 07:33:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 550 states have (on average 1.6090909090909091) internal successors, (885), 652 states have internal predecessors, (885), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 954 transitions. [2023-11-19 07:33:53,420 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 954 transitions. Word has length 14 [2023-11-19 07:33:53,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:53,420 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 954 transitions. [2023-11-19 07:33:53,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 954 transitions. [2023-11-19 07:33:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:33:53,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:53,422 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:53,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:53,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:53,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:53,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:53,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1466935690, now seen corresponding path program 2 times [2023-11-19 07:33:53,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:53,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080241737] [2023-11-19 07:33:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:53,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:53,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:33:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:53,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:53,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080241737] [2023-11-19 07:33:53,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080241737] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:53,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896306246] [2023-11-19 07:33:53,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:33:53,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:53,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:53,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:53,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:33:54,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:33:54,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:33:54,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:33:54,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:33:54,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:54,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896306246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:54,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:54,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-19 07:33:54,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626682064] [2023-11-19 07:33:54,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:54,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:33:54,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:54,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:33:54,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:33:54,392 INFO L87 Difference]: Start difference. First operand 693 states and 954 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:54,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:54,537 INFO L93 Difference]: Finished difference Result 693 states and 954 transitions. [2023-11-19 07:33:54,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:33:54,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-19 07:33:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:54,545 INFO L225 Difference]: With dead ends: 693 [2023-11-19 07:33:54,545 INFO L226 Difference]: Without dead ends: 691 [2023-11-19 07:33:54,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:33:54,547 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 656 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:54,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 3038 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:33:54,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-11-19 07:33:54,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2023-11-19 07:33:54,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 550 states have (on average 1.6054545454545455) internal successors, (883), 650 states have internal predecessors, (883), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:54,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 952 transitions. [2023-11-19 07:33:54,584 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 952 transitions. Word has length 23 [2023-11-19 07:33:54,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:54,585 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 952 transitions. [2023-11-19 07:33:54,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:54,585 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 952 transitions. [2023-11-19 07:33:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:33:54,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:54,586 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:54,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:54,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:54,802 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:54,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:54,803 INFO L85 PathProgramCache]: Analyzing trace with hash -673748602, now seen corresponding path program 1 times [2023-11-19 07:33:54,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:54,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851235759] [2023-11-19 07:33:54,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:54,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:33:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:33:55,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:55,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851235759] [2023-11-19 07:33:55,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851235759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:55,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:55,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:55,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236241326] [2023-11-19 07:33:55,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:55,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:55,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:55,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:55,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:55,078 INFO L87 Difference]: Start difference. First operand 691 states and 952 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:55,145 INFO L93 Difference]: Finished difference Result 1364 states and 1887 transitions. [2023-11-19 07:33:55,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:55,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-19 07:33:55,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:55,151 INFO L225 Difference]: With dead ends: 1364 [2023-11-19 07:33:55,151 INFO L226 Difference]: Without dead ends: 694 [2023-11-19 07:33:55,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:55,154 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 1 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:55,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1872 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:55,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-11-19 07:33:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2023-11-19 07:33:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 553 states have (on average 1.6021699819168174) internal successors, (886), 653 states have internal predecessors, (886), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 955 transitions. [2023-11-19 07:33:55,195 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 955 transitions. Word has length 28 [2023-11-19 07:33:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:55,195 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 955 transitions. [2023-11-19 07:33:55,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:55,196 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 955 transitions. [2023-11-19 07:33:55,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:33:55,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:55,201 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:55,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:33:55,202 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:55,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:55,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1066379976, now seen corresponding path program 1 times [2023-11-19 07:33:55,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:55,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727208873] [2023-11-19 07:33:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:55,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:33:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:33:55,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:55,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727208873] [2023-11-19 07:33:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727208873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:55,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:55,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:55,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729760401] [2023-11-19 07:33:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:55,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:55,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:55,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:55,435 INFO L87 Difference]: Start difference. First operand 694 states and 955 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:55,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:55,511 INFO L93 Difference]: Finished difference Result 948 states and 1334 transitions. [2023-11-19 07:33:55,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:55,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-19 07:33:55,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:55,518 INFO L225 Difference]: With dead ends: 948 [2023-11-19 07:33:55,518 INFO L226 Difference]: Without dead ends: 946 [2023-11-19 07:33:55,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:55,519 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 357 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:55,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1860 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:55,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2023-11-19 07:33:55,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 698. [2023-11-19 07:33:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 557 states have (on average 1.5996409335727109) internal successors, (891), 657 states have internal predecessors, (891), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 960 transitions. [2023-11-19 07:33:55,555 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 960 transitions. Word has length 30 [2023-11-19 07:33:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:55,555 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 960 transitions. [2023-11-19 07:33:55,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:55,556 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 960 transitions. [2023-11-19 07:33:55,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:33:55,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:55,557 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:55,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:33:55,557 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:55,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:55,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1261911771, now seen corresponding path program 1 times [2023-11-19 07:33:55,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:55,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211636671] [2023-11-19 07:33:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:33:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:55,802 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:33:55,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:55,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211636671] [2023-11-19 07:33:55,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211636671] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:55,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776149071] [2023-11-19 07:33:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:55,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:55,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:55,804 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:55,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:33:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:56,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:33:56,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:33:56,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:33:56,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776149071] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:56,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:33:56,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 07:33:56,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853952953] [2023-11-19 07:33:56,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:56,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:33:56,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:56,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:33:56,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:33:56,392 INFO L87 Difference]: Start difference. First operand 698 states and 960 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:33:56,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:56,566 INFO L93 Difference]: Finished difference Result 1398 states and 1928 transitions. [2023-11-19 07:33:56,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:33:56,567 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-19 07:33:56,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:56,572 INFO L225 Difference]: With dead ends: 1398 [2023-11-19 07:33:56,572 INFO L226 Difference]: Without dead ends: 715 [2023-11-19 07:33:56,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:33:56,575 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 7 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4653 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:56,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4653 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:33:56,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-11-19 07:33:56,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-11-19 07:33:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 575 states have (on average 1.5791304347826087) internal successors, (908), 674 states have internal predecessors, (908), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 977 transitions. [2023-11-19 07:33:56,610 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 977 transitions. Word has length 31 [2023-11-19 07:33:56,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:56,611 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 977 transitions. [2023-11-19 07:33:56,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:33:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 977 transitions. [2023-11-19 07:33:56,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:33:56,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:56,613 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:56,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-19 07:33:56,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 07:33:56,831 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:56,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:56,832 INFO L85 PathProgramCache]: Analyzing trace with hash 830002594, now seen corresponding path program 1 times [2023-11-19 07:33:56,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:56,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470458255] [2023-11-19 07:33:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:56,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:33:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:33:57,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:57,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470458255] [2023-11-19 07:33:57,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470458255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:57,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:57,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:57,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745297750] [2023-11-19 07:33:57,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:57,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:57,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:57,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:57,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:57,100 INFO L87 Difference]: Start difference. First operand 715 states and 977 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:57,180 INFO L93 Difference]: Finished difference Result 729 states and 993 transitions. [2023-11-19 07:33:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:57,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-19 07:33:57,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:57,186 INFO L225 Difference]: With dead ends: 729 [2023-11-19 07:33:57,187 INFO L226 Difference]: Without dead ends: 727 [2023-11-19 07:33:57,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:57,188 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 3 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:57,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1867 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-11-19 07:33:57,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 725. [2023-11-19 07:33:57,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 585 states have (on average 1.5743589743589743) internal successors, (921), 684 states have internal predecessors, (921), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 990 transitions. [2023-11-19 07:33:57,235 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 990 transitions. Word has length 50 [2023-11-19 07:33:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:57,236 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 990 transitions. [2023-11-19 07:33:57,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 990 transitions. [2023-11-19 07:33:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:33:57,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:57,242 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:57,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:33:57,244 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:57,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:57,245 INFO L85 PathProgramCache]: Analyzing trace with hash 830004323, now seen corresponding path program 1 times [2023-11-19 07:33:57,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:57,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086350260] [2023-11-19 07:33:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:57,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:57,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:33:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:33:57,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:57,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086350260] [2023-11-19 07:33:57,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086350260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:57,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:57,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021530227] [2023-11-19 07:33:57,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:57,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:57,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:57,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:57,489 INFO L87 Difference]: Start difference. First operand 725 states and 990 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:57,545 INFO L93 Difference]: Finished difference Result 725 states and 990 transitions. [2023-11-19 07:33:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-19 07:33:57,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:57,553 INFO L225 Difference]: With dead ends: 725 [2023-11-19 07:33:57,553 INFO L226 Difference]: Without dead ends: 724 [2023-11-19 07:33:57,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:33:57,555 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 0 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:57,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1870 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:57,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-11-19 07:33:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 720. [2023-11-19 07:33:57,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 581 states have (on average 1.5748709122203097) internal successors, (915), 679 states have internal predecessors, (915), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 984 transitions. [2023-11-19 07:33:57,593 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 984 transitions. Word has length 50 [2023-11-19 07:33:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:57,594 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 984 transitions. [2023-11-19 07:33:57,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 984 transitions. [2023-11-19 07:33:57,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 07:33:57,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:57,598 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:57,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:33:57,599 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:57,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -262860735, now seen corresponding path program 1 times [2023-11-19 07:33:57,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:57,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298156468] [2023-11-19 07:33:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:33:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:33:57,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:57,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298156468] [2023-11-19 07:33:57,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298156468] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:57,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203293827] [2023-11-19 07:33:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:57,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:57,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:57,919 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:57,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:33:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:58,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:33:58,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:58,485 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:33:58,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:58,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203293827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:58,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:58,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:33:58,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548644285] [2023-11-19 07:33:58,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:58,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:33:58,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:58,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:33:58,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:58,488 INFO L87 Difference]: Start difference. First operand 720 states and 984 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:58,620 INFO L93 Difference]: Finished difference Result 972 states and 1361 transitions. [2023-11-19 07:33:58,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:33:58,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-19 07:33:58,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:58,628 INFO L225 Difference]: With dead ends: 972 [2023-11-19 07:33:58,628 INFO L226 Difference]: Without dead ends: 971 [2023-11-19 07:33:58,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:58,630 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 714 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:58,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 2800 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:33:58,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-11-19 07:33:58,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 719. [2023-11-19 07:33:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 581 states have (on average 1.5731497418244407) internal successors, (914), 678 states have internal predecessors, (914), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:33:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 983 transitions. [2023-11-19 07:33:58,672 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 983 transitions. Word has length 52 [2023-11-19 07:33:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:58,672 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 983 transitions. [2023-11-19 07:33:58,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:33:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 983 transitions. [2023-11-19 07:33:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:33:58,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:58,674 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:58,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:58,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:33:58,887 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:33:58,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash 441252354, now seen corresponding path program 1 times [2023-11-19 07:33:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:58,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331386323] [2023-11-19 07:33:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:33:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:59,253 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:33:59,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:59,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331386323] [2023-11-19 07:33:59,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331386323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:59,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225911861] [2023-11-19 07:33:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:59,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:59,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:59,256 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:59,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:33:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:59,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:33:59,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:33:59,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:33:59,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225911861] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:59,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:33:59,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:33:59,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115249423] [2023-11-19 07:33:59,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:59,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:59,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:59,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:59,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:59,868 INFO L87 Difference]: Start difference. First operand 719 states and 983 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:00,106 INFO L93 Difference]: Finished difference Result 1724 states and 2489 transitions. [2023-11-19 07:34:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2023-11-19 07:34:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:00,118 INFO L225 Difference]: With dead ends: 1724 [2023-11-19 07:34:00,118 INFO L226 Difference]: Without dead ends: 1723 [2023-11-19 07:34:00,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:34:00,120 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 2133 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 4132 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:00,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 4132 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:34:00,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-11-19 07:34:00,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 731. [2023-11-19 07:34:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 593 states have (on average 1.566610455311973) internal successors, (929), 690 states have internal predecessors, (929), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:34:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 998 transitions. [2023-11-19 07:34:00,170 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 998 transitions. Word has length 53 [2023-11-19 07:34:00,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:00,171 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 998 transitions. [2023-11-19 07:34:00,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 998 transitions. [2023-11-19 07:34:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:34:00,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:00,172 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:00,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:00,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:00,395 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:00,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:00,395 INFO L85 PathProgramCache]: Analyzing trace with hash -173103797, now seen corresponding path program 1 times [2023-11-19 07:34:00,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:00,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663951042] [2023-11-19 07:34:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:00,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:00,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:00,674 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:34:00,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:00,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663951042] [2023-11-19 07:34:00,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663951042] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:00,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163968209] [2023-11-19 07:34:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:00,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:00,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:00,676 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:00,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:34:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:01,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:01,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:34:01,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:34:01,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163968209] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:01,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:34:01,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:34:01,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585125832] [2023-11-19 07:34:01,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:01,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:34:01,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:01,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:34:01,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:34:01,217 INFO L87 Difference]: Start difference. First operand 731 states and 998 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:01,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:01,308 INFO L93 Difference]: Finished difference Result 1436 states and 1972 transitions. [2023-11-19 07:34:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:01,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-19 07:34:01,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:01,314 INFO L225 Difference]: With dead ends: 1436 [2023-11-19 07:34:01,314 INFO L226 Difference]: Without dead ends: 749 [2023-11-19 07:34:01,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:34:01,316 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 4 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4664 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:01,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4664 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:01,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-11-19 07:34:01,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2023-11-19 07:34:01,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 611 states have (on average 1.5499181669394435) internal successors, (947), 708 states have internal predecessors, (947), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:34:01,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1016 transitions. [2023-11-19 07:34:01,353 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1016 transitions. Word has length 58 [2023-11-19 07:34:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:01,353 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1016 transitions. [2023-11-19 07:34:01,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:01,354 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1016 transitions. [2023-11-19 07:34:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:34:01,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:01,355 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:01,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-19 07:34:01,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:01,577 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:01,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1273131599, now seen corresponding path program 1 times [2023-11-19 07:34:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931640963] [2023-11-19 07:34:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:34:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:34:01,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:01,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931640963] [2023-11-19 07:34:01,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931640963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:01,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:01,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:01,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583879947] [2023-11-19 07:34:01,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:01,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:01,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:01,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:01,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:01,868 INFO L87 Difference]: Start difference. First operand 749 states and 1016 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:02,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:02,743 INFO L93 Difference]: Finished difference Result 1538 states and 2121 transitions. [2023-11-19 07:34:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:02,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2023-11-19 07:34:02,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:02,751 INFO L225 Difference]: With dead ends: 1538 [2023-11-19 07:34:02,751 INFO L226 Difference]: Without dead ends: 893 [2023-11-19 07:34:02,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:02,754 INFO L413 NwaCegarLoop]: 958 mSDtfsCounter, 208 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:02,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2492 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:34:02,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-11-19 07:34:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 790. [2023-11-19 07:34:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 651 states have (on average 1.5391705069124424) internal successors, (1002), 748 states have internal predecessors, (1002), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1073 transitions. [2023-11-19 07:34:02,799 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1073 transitions. Word has length 62 [2023-11-19 07:34:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:02,799 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1073 transitions. [2023-11-19 07:34:02,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1073 transitions. [2023-11-19 07:34:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:34:02,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:02,800 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:02,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:34:02,801 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:02,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:02,801 INFO L85 PathProgramCache]: Analyzing trace with hash 586231606, now seen corresponding path program 1 times [2023-11-19 07:34:02,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:02,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517070717] [2023-11-19 07:34:02,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:02,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:34:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:34:03,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:03,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517070717] [2023-11-19 07:34:03,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517070717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:03,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:03,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599857465] [2023-11-19 07:34:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:03,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:03,034 INFO L87 Difference]: Start difference. First operand 790 states and 1073 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:03,723 INFO L93 Difference]: Finished difference Result 838 states and 1135 transitions. [2023-11-19 07:34:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:03,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2023-11-19 07:34:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:03,731 INFO L225 Difference]: With dead ends: 838 [2023-11-19 07:34:03,731 INFO L226 Difference]: Without dead ends: 836 [2023-11-19 07:34:03,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:03,732 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 86 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:03,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2481 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:34:03,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-11-19 07:34:03,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 790. [2023-11-19 07:34:03,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 651 states have (on average 1.5360983102918586) internal successors, (1000), 748 states have internal predecessors, (1000), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1071 transitions. [2023-11-19 07:34:03,779 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1071 transitions. Word has length 64 [2023-11-19 07:34:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:03,779 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1071 transitions. [2023-11-19 07:34:03,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1071 transitions. [2023-11-19 07:34:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:34:03,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:03,781 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:03,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:34:03,782 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:03,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:03,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1074287977, now seen corresponding path program 2 times [2023-11-19 07:34:03,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:03,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96112695] [2023-11-19 07:34:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:34:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:04,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96112695] [2023-11-19 07:34:04,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96112695] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:04,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979356248] [2023-11-19 07:34:04,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:34:04,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:04,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:04,230 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:04,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:34:04,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:34:04,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:34:04,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:34:04,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-19 07:34:04,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:04,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979356248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:04,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:34:04,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-19 07:34:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105533470] [2023-11-19 07:34:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:04,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:04,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:34:04,847 INFO L87 Difference]: Start difference. First operand 790 states and 1071 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:05,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:05,069 INFO L93 Difference]: Finished difference Result 1505 states and 2061 transitions. [2023-11-19 07:34:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:05,069 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-19 07:34:05,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:05,074 INFO L225 Difference]: With dead ends: 1505 [2023-11-19 07:34:05,074 INFO L226 Difference]: Without dead ends: 790 [2023-11-19 07:34:05,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:34:05,077 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 657 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:05,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 3922 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:34:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-19 07:34:05,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2023-11-19 07:34:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 651 states have (on average 1.5345622119815667) internal successors, (999), 748 states have internal predecessors, (999), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1070 transitions. [2023-11-19 07:34:05,116 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1070 transitions. Word has length 65 [2023-11-19 07:34:05,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:05,118 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1070 transitions. [2023-11-19 07:34:05,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:05,119 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1070 transitions. [2023-11-19 07:34:05,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:34:05,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:05,124 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:05,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:05,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:34:05,337 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:05,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1434220039, now seen corresponding path program 2 times [2023-11-19 07:34:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:05,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565698811] [2023-11-19 07:34:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:05,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-19 07:34:05,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:05,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565698811] [2023-11-19 07:34:05,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565698811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:05,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926532191] [2023-11-19 07:34:05,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:34:05,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:05,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:05,743 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:05,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:34:06,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:34:06,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:34:06,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:34:06,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-19 07:34:06,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-19 07:34:06,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926532191] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:06,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:34:06,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 07:34:06,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123667510] [2023-11-19 07:34:06,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:06,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:34:06,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:06,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:34:06,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:34:06,713 INFO L87 Difference]: Start difference. First operand 790 states and 1070 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:07,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:07,187 INFO L93 Difference]: Finished difference Result 1562 states and 2132 transitions. [2023-11-19 07:34:07,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 07:34:07,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2023-11-19 07:34:07,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:07,192 INFO L225 Difference]: With dead ends: 1562 [2023-11-19 07:34:07,193 INFO L226 Difference]: Without dead ends: 825 [2023-11-19 07:34:07,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-19 07:34:07,196 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 11 mSDsluCounter, 7416 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:07,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8348 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:07,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2023-11-19 07:34:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2023-11-19 07:34:07,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 687 states have (on average 1.50509461426492) internal successors, (1034), 783 states have internal predecessors, (1034), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:07,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1105 transitions. [2023-11-19 07:34:07,236 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1105 transitions. Word has length 76 [2023-11-19 07:34:07,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:07,236 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1105 transitions. [2023-11-19 07:34:07,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:07,237 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1105 transitions. [2023-11-19 07:34:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 07:34:07,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:07,238 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-19 07:34:07,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:07,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:34:07,453 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:07,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:07,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1601277681, now seen corresponding path program 1 times [2023-11-19 07:34:07,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:07,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173105080] [2023-11-19 07:34:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:07,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:34:07,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:07,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173105080] [2023-11-19 07:34:07,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173105080] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:07,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687592640] [2023-11-19 07:34:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:07,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:07,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:07,938 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:07,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:34:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:08,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:34:08,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:34:08,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:34:08,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687592640] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:08,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:34:08,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-19 07:34:08,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679726348] [2023-11-19 07:34:08,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:08,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:34:08,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:08,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:34:08,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:34:08,697 INFO L87 Difference]: Start difference. First operand 825 states and 1105 transitions. Second operand has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:09,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:09,303 INFO L93 Difference]: Finished difference Result 3740 states and 5411 transitions. [2023-11-19 07:34:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:34:09,304 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2023-11-19 07:34:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:09,326 INFO L225 Difference]: With dead ends: 3740 [2023-11-19 07:34:09,326 INFO L226 Difference]: Without dead ends: 3739 [2023-11-19 07:34:09,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:34:09,328 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 5286 mSDsluCounter, 6748 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5356 SdHoareTripleChecker+Valid, 7684 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:09,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5356 Valid, 7684 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2023-11-19 07:34:09,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 849. [2023-11-19 07:34:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 711 states have (on average 1.4964838255977497) internal successors, (1064), 807 states have internal predecessors, (1064), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1135 transitions. [2023-11-19 07:34:09,400 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1135 transitions. Word has length 100 [2023-11-19 07:34:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:09,401 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1135 transitions. [2023-11-19 07:34:09,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:34:09,401 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1135 transitions. [2023-11-19 07:34:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 07:34:09,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:09,403 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:09,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:09,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:09,619 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:09,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:09,620 INFO L85 PathProgramCache]: Analyzing trace with hash 849350847, now seen corresponding path program 1 times [2023-11-19 07:34:09,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:09,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639083592] [2023-11-19 07:34:09,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:09,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:09,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:34:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:34:09,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:09,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639083592] [2023-11-19 07:34:09,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639083592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:09,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:09,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:09,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008215793] [2023-11-19 07:34:09,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:09,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:09,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:09,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:09,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:09,976 INFO L87 Difference]: Start difference. First operand 849 states and 1135 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:10,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:10,638 INFO L93 Difference]: Finished difference Result 899 states and 1202 transitions. [2023-11-19 07:34:10,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:10,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 106 [2023-11-19 07:34:10,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:10,645 INFO L225 Difference]: With dead ends: 899 [2023-11-19 07:34:10,646 INFO L226 Difference]: Without dead ends: 894 [2023-11-19 07:34:10,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:10,647 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 395 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:10,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 2052 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:34:10,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2023-11-19 07:34:10,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 844. [2023-11-19 07:34:10,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 711 states have (on average 1.489451476793249) internal successors, (1059), 802 states have internal predecessors, (1059), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1130 transitions. [2023-11-19 07:34:10,735 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1130 transitions. Word has length 106 [2023-11-19 07:34:10,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:10,736 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1130 transitions. [2023-11-19 07:34:10,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:10,736 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1130 transitions. [2023-11-19 07:34:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-19 07:34:10,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:10,738 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:10,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-19 07:34:10,739 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:10,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:10,739 INFO L85 PathProgramCache]: Analyzing trace with hash 560073323, now seen corresponding path program 1 times [2023-11-19 07:34:10,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:10,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250887463] [2023-11-19 07:34:10,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:10,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:11,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:34:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:34:11,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:11,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250887463] [2023-11-19 07:34:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250887463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:11,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:11,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:11,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142781453] [2023-11-19 07:34:11,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:11,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:11,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:11,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:11,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:11,068 INFO L87 Difference]: Start difference. First operand 844 states and 1130 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:11,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:11,854 INFO L93 Difference]: Finished difference Result 939 states and 1265 transitions. [2023-11-19 07:34:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:11,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 107 [2023-11-19 07:34:11,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:11,862 INFO L225 Difference]: With dead ends: 939 [2023-11-19 07:34:11,862 INFO L226 Difference]: Without dead ends: 934 [2023-11-19 07:34:11,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:11,864 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 424 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:11,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 2114 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:34:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-11-19 07:34:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 827. [2023-11-19 07:34:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 699 states have (on average 1.4835479256080115) internal successors, (1037), 785 states have internal predecessors, (1037), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1108 transitions. [2023-11-19 07:34:11,917 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1108 transitions. Word has length 107 [2023-11-19 07:34:11,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:11,917 INFO L495 AbstractCegarLoop]: Abstraction has 827 states and 1108 transitions. [2023-11-19 07:34:11,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:11,918 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1108 transitions. [2023-11-19 07:34:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 07:34:11,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:11,920 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-19 07:34:11,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-19 07:34:11,920 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:11,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash 643855938, now seen corresponding path program 1 times [2023-11-19 07:34:11,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:11,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980946290] [2023-11-19 07:34:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:11,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:12,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:34:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:34:12,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:12,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980946290] [2023-11-19 07:34:12,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980946290] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:34:12,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459587632] [2023-11-19 07:34:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:12,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:12,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:12,448 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:12,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:34:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:13,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:34:13,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:34:13,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:13,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459587632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:13,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:34:13,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-19 07:34:13,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549421371] [2023-11-19 07:34:13,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:13,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:13,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:13,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:13,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:34:13,321 INFO L87 Difference]: Start difference. First operand 827 states and 1108 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:13,550 INFO L93 Difference]: Finished difference Result 1541 states and 2111 transitions. [2023-11-19 07:34:13,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:13,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 108 [2023-11-19 07:34:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:13,558 INFO L225 Difference]: With dead ends: 1541 [2023-11-19 07:34:13,558 INFO L226 Difference]: Without dead ends: 904 [2023-11-19 07:34:13,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:34:13,563 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 432 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:13,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 2565 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-11-19 07:34:13,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 828. [2023-11-19 07:34:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 702 states have (on average 1.4786324786324787) internal successors, (1038), 786 states have internal predecessors, (1038), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1109 transitions. [2023-11-19 07:34:13,634 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1109 transitions. Word has length 108 [2023-11-19 07:34:13,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:13,634 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1109 transitions. [2023-11-19 07:34:13,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1109 transitions. [2023-11-19 07:34:13,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 07:34:13,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:13,637 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:13,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:13,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935fdcdd-9a91-42fd-94be-66e6985ff0d7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:34:13,851 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:13,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash 270284741, now seen corresponding path program 1 times [2023-11-19 07:34:13,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:13,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992877429] [2023-11-19 07:34:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:13,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:34:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:34:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:14,156 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-19 07:34:14,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:14,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992877429] [2023-11-19 07:34:14,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992877429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:14,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:14,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:14,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993692389] [2023-11-19 07:34:14,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:14,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:14,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:14,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:14,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:14,159 INFO L87 Difference]: Start difference. First operand 828 states and 1109 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:14,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:14,816 INFO L93 Difference]: Finished difference Result 874 states and 1171 transitions. [2023-11-19 07:34:14,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:14,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 110 [2023-11-19 07:34:14,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:14,823 INFO L225 Difference]: With dead ends: 874 [2023-11-19 07:34:14,823 INFO L226 Difference]: Without dead ends: 873 [2023-11-19 07:34:14,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:14,824 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 87 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:14,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2438 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:34:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-11-19 07:34:14,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 827. [2023-11-19 07:34:14,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 702 states have (on average 1.4772079772079771) internal successors, (1037), 785 states have internal predecessors, (1037), 41 states have call successors, (41), 11 states have call predecessors, (41), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 07:34:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1108 transitions. [2023-11-19 07:34:14,905 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1108 transitions. Word has length 110 [2023-11-19 07:34:14,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:14,905 INFO L495 AbstractCegarLoop]: Abstraction has 827 states and 1108 transitions. [2023-11-19 07:34:14,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1108 transitions. [2023-11-19 07:34:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:34:14,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:14,908 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:14,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-19 07:34:14,908 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-11-19 07:34:14,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:14,909 INFO L85 PathProgramCache]: Analyzing trace with hash -211107024, now seen corresponding path program 1 times [2023-11-19 07:34:14,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:14,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942069505] [2023-11-19 07:34:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:14,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat