./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/cut-4.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/cut-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU --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 834f3c4db6eac95b569985cbf4e9b11a41ec2b2fe65b4e3186a42d429220e0e6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:57:25,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:57:25,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-31 21:57:25,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:57:25,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:57:25,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:57:25,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:57:25,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:57:25,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:57:25,880 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:57:25,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:57:25,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:57:25,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:57:25,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:57:25,882 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:57:25,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:57:25,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:57:25,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:57:25,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:57:25,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:57:25,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:57:25,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:57:25,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:57:25,886 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:57:25,887 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:57:25,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:57:25,888 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:57:25,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:57:25,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:57:25,889 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:57:25,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:57:25,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:25,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:57:25,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:57:25,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:57:25,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:57:25,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:57:25,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:57:25,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:57:25,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:57:25,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:57:25,905 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_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 834f3c4db6eac95b569985cbf4e9b11a41ec2b2fe65b4e3186a42d429220e0e6 [2024-10-31 21:57:26,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:57:26,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:57:26,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:57:26,248 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:57:26,249 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:57:26,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/busybox-1.22.0/cut-4.i Unable to find full path for "g++" [2024-10-31 21:57:28,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:57:28,666 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:57:28,667 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/sv-benchmarks/c/busybox-1.22.0/cut-4.i [2024-10-31 21:57:28,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/data/8542e466d/62f770e1d8ea406b8264e82d4a9ff85a/FLAG13c765d3f [2024-10-31 21:57:28,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/data/8542e466d/62f770e1d8ea406b8264e82d4a9ff85a [2024-10-31 21:57:28,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:57:28,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:57:28,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:28,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:57:28,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:57:28,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:28" (1/1) ... [2024-10-31 21:57:28,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d231a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:28, skipping insertion in model container [2024-10-31 21:57:28,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:28" (1/1) ... [2024-10-31 21:57:28,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:57:30,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:30,913 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:57:31,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:31,321 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:57:31,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31 WrapperNode [2024-10-31 21:57:31,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:31,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:31,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:57:31,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:57:31,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,599 INFO L138 Inliner]: procedures = 578, calls = 852, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 2269 [2024-10-31 21:57:31,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:31,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:57:31,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:57:31,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:57:31,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,623 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,634 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-10-31 21:57:31,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:57:31,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:57:31,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:57:31,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:57:31,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (1/1) ... [2024-10-31 21:57:31,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:31,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:31,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:31,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:57:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure xatoi_positive [2024-10-31 21:57:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoi_positive [2024-10-31 21:57:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2024-10-31 21:57:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2024-10-31 21:57:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:57:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2024-10-31 21:57:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2024-10-31 21:57:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2024-10-31 21:57:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2024-10-31 21:57:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-10-31 21:57:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 21:57:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:57:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:57:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 21:57:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:57:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:57:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-10-31 21:57:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-10-31 21:57:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2024-10-31 21:57:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2024-10-31 21:57:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2024-10-31 21:57:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2024-10-31 21:57:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-10-31 21:57:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-10-31 21:57:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 21:57:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 21:57:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:57:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 21:57:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-31 21:57:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 21:57:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2024-10-31 21:57:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2024-10-31 21:57:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:57:32,343 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:57:32,345 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:57:42,596 INFO L? ?]: Removed 591 outVars from TransFormulas that were not future-live. [2024-10-31 21:57:42,596 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:57:42,635 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:57:42,635 INFO L316 CfgBuilder]: Removed 33 assume(true) statements. [2024-10-31 21:57:42,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:42 BoogieIcfgContainer [2024-10-31 21:57:42,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:57:42,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:57:42,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:57:42,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:57:42,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:57:28" (1/3) ... [2024-10-31 21:57:42,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1802b21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:42, skipping insertion in model container [2024-10-31 21:57:42,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:31" (2/3) ... [2024-10-31 21:57:42,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1802b21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:42, skipping insertion in model container [2024-10-31 21:57:42,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:42" (3/3) ... [2024-10-31 21:57:42,650 INFO L112 eAbstractionObserver]: Analyzing ICFG cut-4.i [2024-10-31 21:57:42,671 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:57:42,671 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2024-10-31 21:57:42,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:57:42,778 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@147e922d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:57:42,779 INFO L334 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2024-10-31 21:57:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 612 states, 499 states have (on average 1.6713426853707414) internal successors, (834), 576 states have internal predecessors, (834), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-31 21:57:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 21:57:42,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:42,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 21:57:42,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 68 more)] === [2024-10-31 21:57:42,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:42,806 INFO L85 PathProgramCache]: Analyzing trace with hash 5974341, now seen corresponding path program 1 times [2024-10-31 21:57:42,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:42,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854171706] [2024-10-31 21:57:42,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:42,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:45,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:45,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854171706] [2024-10-31 21:57:45,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854171706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:45,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:45,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:57:45,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183083392] [2024-10-31 21:57:45,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:45,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:45,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:45,582 INFO L87 Difference]: Start difference. First operand has 612 states, 499 states have (on average 1.6713426853707414) internal successors, (834), 576 states have internal predecessors, (834), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) 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) [2024-10-31 21:57:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:45,802 INFO L93 Difference]: Finished difference Result 1203 states and 1788 transitions. [2024-10-31 21:57:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:45,808 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 [2024-10-31 21:57:45,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:45,834 INFO L225 Difference]: With dead ends: 1203 [2024-10-31 21:57:45,834 INFO L226 Difference]: Without dead ends: 580 [2024-10-31 21:57:45,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:45,846 INFO L432 NwaCegarLoop]: 819 mSDtfsCounter, 1 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:45,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1633 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:57:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-10-31 21:57:45,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-10-31 21:57:45,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 483 states have (on average 1.556935817805383) internal successors, (752), 549 states have internal predecessors, (752), 21 states have call successors, (21), 9 states have call predecessors, (21), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-31 21:57:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 794 transitions. [2024-10-31 21:57:45,951 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 794 transitions. Word has length 4 [2024-10-31 21:57:45,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:45,954 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 794 transitions. [2024-10-31 21:57:45,954 INFO L472 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) [2024-10-31 21:57:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 794 transitions. [2024-10-31 21:57:45,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 21:57:45,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:45,955 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-31 21:57:45,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:57:45,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 68 more)] === [2024-10-31 21:57:45,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:45,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1888140975, now seen corresponding path program 1 times [2024-10-31 21:57:45,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:45,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082179233] [2024-10-31 21:57:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:45,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:48,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:48,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082179233] [2024-10-31 21:57:48,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082179233] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:57:48,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686709284] [2024-10-31 21:57:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:48,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:57:48,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:48,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:57:48,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:57:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:50,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:57:50,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:57:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:50,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:57:50,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686709284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:50,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:57:50,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-31 21:57:50,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870468427] [2024-10-31 21:57:50,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:50,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:57:50,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:50,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:57:50,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:57:50,912 INFO L87 Difference]: Start difference. First operand 580 states and 794 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) [2024-10-31 21:57:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:51,024 INFO L93 Difference]: Finished difference Result 580 states and 794 transitions. [2024-10-31 21:57:51,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:57:51,025 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 [2024-10-31 21:57:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:51,030 INFO L225 Difference]: With dead ends: 580 [2024-10-31 21:57:51,031 INFO L226 Difference]: Without dead ends: 579 [2024-10-31 21:57:51,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:57:51,033 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 1 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:57:51,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1568 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:57:51,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-10-31 21:57:51,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-10-31 21:57:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 483 states have (on average 1.554865424430642) internal successors, (751), 548 states have internal predecessors, (751), 21 states have call successors, (21), 9 states have call predecessors, (21), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-31 21:57:51,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 793 transitions. [2024-10-31 21:57:51,074 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 793 transitions. Word has length 7 [2024-10-31 21:57:51,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:51,076 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 793 transitions. [2024-10-31 21:57:51,076 INFO L472 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) [2024-10-31 21:57:51,076 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 793 transitions. [2024-10-31 21:57:51,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 21:57:51,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:51,077 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-10-31 21:57:51,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:57:51,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:57:51,283 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 68 more)] === [2024-10-31 21:57:51,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:51,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1597171710, now seen corresponding path program 1 times [2024-10-31 21:57:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:51,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459313946] [2024-10-31 21:57:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:51,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:57:53,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:53,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459313946] [2024-10-31 21:57:53,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459313946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:53,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:53,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:57:53,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408888882] [2024-10-31 21:57:53,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:53,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:53,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:53,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:53,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:53,114 INFO L87 Difference]: Start difference. First operand 579 states and 793 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) [2024-10-31 21:57:53,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:57:53,182 INFO L93 Difference]: Finished difference Result 579 states and 793 transitions. [2024-10-31 21:57:53,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:53,184 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 [2024-10-31 21:57:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:57:53,187 INFO L225 Difference]: With dead ends: 579 [2024-10-31 21:57:53,188 INFO L226 Difference]: Without dead ends: 578 [2024-10-31 21:57:53,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:53,189 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 0 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1569 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 [2024-10-31 21:57:53,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1569 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:57:53,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-10-31 21:57:53,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 576. [2024-10-31 21:57:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 481 states have (on average 1.5550935550935552) internal successors, (748), 545 states have internal predecessors, (748), 21 states have call successors, (21), 9 states have call predecessors, (21), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-31 21:57:53,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 790 transitions. [2024-10-31 21:57:53,214 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 790 transitions. Word has length 8 [2024-10-31 21:57:53,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:57:53,214 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 790 transitions. [2024-10-31 21:57:53,214 INFO L472 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) [2024-10-31 21:57:53,215 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 790 transitions. [2024-10-31 21:57:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-31 21:57:53,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:57:53,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:53,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:57:53,216 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [xatoi_positiveErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xatoi_positiveErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 68 more)] === [2024-10-31 21:57:53,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash -910816832, now seen corresponding path program 1 times [2024-10-31 21:57:53,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:53,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2897780] [2024-10-31 21:57:53,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:53,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:55,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:57:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:55,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:55,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2897780] [2024-10-31 21:57:55,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2897780] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:57:55,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862264500] [2024-10-31 21:57:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:55,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:57:55,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:55,288 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:57:55,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e376cfc5-e054-4292-8b8a-5e5f4fc20cc0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process