./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_01_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/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_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_01_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/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_a85d88bb-6654-4897-aa37-36d4e40c37f3/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 49a61490be4ab9a214cb3cdfee5def5bd71ad096c13e6aad378f7e33e67ea5a4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:18,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:18,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:40:18,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:18,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:18,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:18,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:18,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:18,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:18,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:18,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:18,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:18,561 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:18,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:18,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:18,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:18,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:18,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:18,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:18,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:18,585 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:40:18,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:40:18,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:18,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:18,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:18,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:18,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:18,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:18,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:18,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:18,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:18,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:18,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:18,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:18,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:18,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:18,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:18,593 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:18,594 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_a85d88bb-6654-4897-aa37-36d4e40c37f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49a61490be4ab9a214cb3cdfee5def5bd71ad096c13e6aad378f7e33e67ea5a4 [2023-11-19 07:40:18,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:18,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:18,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:18,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:18,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:18,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_01_good.i [2023-11-19 07:40:22,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:22,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:22,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_01_good.i [2023-11-19 07:40:22,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/data/6a9f1ba07/0fad1a647f144c62bdf58c929f7a0576/FLAG06dc147a7 [2023-11-19 07:40:22,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/data/6a9f1ba07/0fad1a647f144c62bdf58c929f7a0576 [2023-11-19 07:40:22,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:22,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:22,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:22,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:22,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:22,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:22" (1/1) ... [2023-11-19 07:40:22,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63429537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:22, skipping insertion in model container [2023-11-19 07:40:22,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:22" (1/1) ... [2023-11-19 07:40:22,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:23,077 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:40:23,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:23,781 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:23,802 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:40:23,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:24,111 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:24,111 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:24,111 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:24,112 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:24,112 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:24,120 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:24,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24 WrapperNode [2023-11-19 07:40:24,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:24,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:24,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:24,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:24,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,207 INFO L138 Inliner]: procedures = 501, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2023-11-19 07:40:24,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:24,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:24,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:24,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:24,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:24,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:24,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:24,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:24,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (1/1) ... [2023-11-19 07:40:24,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:24,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:24,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:24,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 07:40:24,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 07:40:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 07:40:24,350 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 07:40:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:24,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 07:40:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:24,563 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:24,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:24,762 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:24,781 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:24,781 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:40:24,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:24 BoogieIcfgContainer [2023-11-19 07:40:24,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:24,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:24,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:24,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:24,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:22" (1/3) ... [2023-11-19 07:40:24,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df9274b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:24, skipping insertion in model container [2023-11-19 07:40:24,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:24" (2/3) ... [2023-11-19 07:40:24,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df9274b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:24, skipping insertion in model container [2023-11-19 07:40:24,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:24" (3/3) ... [2023-11-19 07:40:24,798 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_01_good.i [2023-11-19 07:40:24,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:24,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:40:24,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:24,892 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;@d80196b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:24,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:40:24,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 26 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:40:24,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:40:24,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:24,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:24,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:40:24,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:24,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1253822317, now seen corresponding path program 1 times [2023-11-19 07:40:24,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:24,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156680461] [2023-11-19 07:40:24,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:24,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:40:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:25,311 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 07:40:25,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:25,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156680461] [2023-11-19 07:40:25,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156680461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:25,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:25,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:25,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885194857] [2023-11-19 07:40:25,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:25,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:25,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:25,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:25,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:25,370 INFO L87 Difference]: Start difference. First operand has 33 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 26 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:40:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:25,421 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2023-11-19 07:40:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:25,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2023-11-19 07:40:25,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:25,450 INFO L225 Difference]: With dead ends: 33 [2023-11-19 07:40:25,450 INFO L226 Difference]: Without dead ends: 22 [2023-11-19 07:40:25,454 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 07:40:25,459 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:25,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:25,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-19 07:40:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-19 07:40:25,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-11-19 07:40:25,520 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2023-11-19 07:40:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:25,521 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-11-19 07:40:25,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:40:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-11-19 07:40:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:40:25,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:25,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:25,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:40:25,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:40:25,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:25,524 INFO L85 PathProgramCache]: Analyzing trace with hash -213786115, now seen corresponding path program 1 times [2023-11-19 07:40:25,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:25,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975085357] [2023-11-19 07:40:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:25,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:25,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:40:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:25,652 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 07:40:25,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:25,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975085357] [2023-11-19 07:40:25,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975085357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:25,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:25,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:25,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404823859] [2023-11-19 07:40:25,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:25,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:25,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:25,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:25,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:25,676 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 07:40:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:25,689 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2023-11-19 07:40:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:25,691 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), 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 10 [2023-11-19 07:40:25,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:25,692 INFO L225 Difference]: With dead ends: 22 [2023-11-19 07:40:25,692 INFO L226 Difference]: Without dead ends: 21 [2023-11-19 07:40:25,696 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 07:40:25,697 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:25,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:25,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-19 07:40:25,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-19 07:40:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:40:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-11-19 07:40:25,704 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 10 [2023-11-19 07:40:25,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:25,704 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2023-11-19 07:40:25,705 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), 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 07:40:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-11-19 07:40:25,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:40:25,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:25,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:25,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:40:25,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:40:25,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash -950384255, now seen corresponding path program 1 times [2023-11-19 07:40:25,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:25,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472710467] [2023-11-19 07:40:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:25,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:25,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:40:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:40:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:25,846 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 07:40:25,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:25,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472710467] [2023-11-19 07:40:25,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472710467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:25,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:25,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:25,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805418550] [2023-11-19 07:40:25,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:25,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:25,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:25,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:25,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:25,859 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:40:25,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:25,864 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2023-11-19 07:40:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:25,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-19 07:40:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:25,868 INFO L225 Difference]: With dead ends: 21 [2023-11-19 07:40:25,868 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:40:25,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:25,871 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:25,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:25,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:40:25,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:40:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:40:25,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-19 07:40:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:25,881 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:25,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:40:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:40:25,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:40:25,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-19 07:40:25,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-19 07:40:25,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-19 07:40:25,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-19 07:40:25,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:40:25,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:40:25,910 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-19 07:40:25,910 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-19 07:40:25,911 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2023-11-19 07:40:25,911 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2023-11-19 07:40:25,911 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-19 07:40:25,911 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-19 07:40:25,911 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2023-11-19 07:40:25,911 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1554) no Hoare annotation was computed. [2023-11-19 07:40:25,911 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:40:25,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1566) no Hoare annotation was computed. [2023-11-19 07:40:25,912 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:40:25,912 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 1580 1587) no Hoare annotation was computed. [2023-11-19 07:40:25,912 INFO L902 garLoopResultBuilder]: At program point L1572(line 1572) the Hoare annotation is: true [2023-11-19 07:40:25,912 INFO L899 garLoopResultBuilder]: For program point L1572-1(lines 1559 1574) no Hoare annotation was computed. [2023-11-19 07:40:25,912 INFO L902 garLoopResultBuilder]: At program point L1568(line 1568) the Hoare annotation is: true [2023-11-19 07:40:25,913 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:40:25,913 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1554) no Hoare annotation was computed. [2023-11-19 07:40:25,913 INFO L899 garLoopResultBuilder]: For program point L1568-1(line 1568) no Hoare annotation was computed. [2023-11-19 07:40:25,913 INFO L899 garLoopResultBuilder]: For program point L1566(line 1566) no Hoare annotation was computed. [2023-11-19 07:40:25,913 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1566) no Hoare annotation was computed. [2023-11-19 07:40:25,913 INFO L899 garLoopResultBuilder]: For program point L1566-1(line 1566) no Hoare annotation was computed. [2023-11-19 07:40:25,914 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:40:25,914 INFO L899 garLoopResultBuilder]: For program point L1564(lines 1564 1573) no Hoare annotation was computed. [2023-11-19 07:40:25,914 INFO L902 garLoopResultBuilder]: At program point L1556(line 1556) the Hoare annotation is: true [2023-11-19 07:40:25,914 INFO L899 garLoopResultBuilder]: For program point L1556-1(line 1556) no Hoare annotation was computed. [2023-11-19 07:40:25,914 INFO L899 garLoopResultBuilder]: For program point L1554(line 1554) no Hoare annotation was computed. [2023-11-19 07:40:25,914 INFO L899 garLoopResultBuilder]: For program point L1554-1(line 1554) no Hoare annotation was computed. [2023-11-19 07:40:25,915 INFO L902 garLoopResultBuilder]: At program point L1585(line 1585) the Hoare annotation is: true [2023-11-19 07:40:25,915 INFO L899 garLoopResultBuilder]: For program point L1585-1(line 1585) no Hoare annotation was computed. [2023-11-19 07:40:25,915 INFO L902 garLoopResultBuilder]: At program point L1583(line 1583) the Hoare annotation is: true [2023-11-19 07:40:25,915 INFO L899 garLoopResultBuilder]: For program point L1583-1(line 1583) no Hoare annotation was computed. [2023-11-19 07:40:25,915 INFO L899 garLoopResultBuilder]: For program point L1548(lines 1548 1558) no Hoare annotation was computed. [2023-11-19 07:40:25,916 INFO L899 garLoopResultBuilder]: For program point L1575(lines 1575 1579) no Hoare annotation was computed. [2023-11-19 07:40:25,919 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:40:25,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:40:25,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:40:25 BoogieIcfgContainer [2023-11-19 07:40:25,926 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:40:25,927 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:40:25,927 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:40:25,927 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:40:25,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:24" (3/4) ... [2023-11-19 07:40:25,930 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:40:25,935 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 07:40:25,935 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 07:40:25,939 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 07:40:25,940 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:40:25,940 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:40:25,940 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:40:26,028 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:40:26,028 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:40:26,028 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:40:26,029 INFO L158 Benchmark]: Toolchain (without parser) took 3492.11ms. Allocated memory was 115.3MB in the beginning and 190.8MB in the end (delta: 75.5MB). Free memory was 67.0MB in the beginning and 128.4MB in the end (delta: -61.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-11-19 07:40:26,029 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:26,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1579.78ms. Allocated memory was 115.3MB in the beginning and 190.8MB in the end (delta: 75.5MB). Free memory was 67.0MB in the beginning and 126.8MB in the end (delta: -59.8MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2023-11-19 07:40:26,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.95ms. Allocated memory is still 190.8MB. Free memory was 126.8MB in the beginning and 123.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:40:26,030 INFO L158 Benchmark]: Boogie Preprocessor took 29.47ms. Allocated memory is still 190.8MB. Free memory was 123.5MB in the beginning and 122.6MB in the end (delta: 963.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:26,031 INFO L158 Benchmark]: RCFGBuilder took 547.70ms. Allocated memory is still 190.8MB. Free memory was 122.6MB in the beginning and 110.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:40:26,031 INFO L158 Benchmark]: TraceAbstraction took 1136.89ms. Allocated memory is still 190.8MB. Free memory was 108.9MB in the beginning and 133.6MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:26,032 INFO L158 Benchmark]: Witness Printer took 101.55ms. Allocated memory is still 190.8MB. Free memory was 133.6MB in the beginning and 128.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:40:26,034 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1579.78ms. Allocated memory was 115.3MB in the beginning and 190.8MB in the end (delta: 75.5MB). Free memory was 67.0MB in the beginning and 126.8MB in the end (delta: -59.8MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.95ms. Allocated memory is still 190.8MB. Free memory was 126.8MB in the beginning and 123.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.47ms. Allocated memory is still 190.8MB. Free memory was 123.5MB in the beginning and 122.6MB in the end (delta: 963.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 547.70ms. Allocated memory is still 190.8MB. Free memory was 122.6MB in the beginning and 110.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1136.89ms. Allocated memory is still 190.8MB. Free memory was 108.9MB in the beginning and 133.6MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 101.55ms. Allocated memory is still 190.8MB. Free memory was 133.6MB in the beginning and 128.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 69 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 7 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:40:26,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d88bb-6654-4897-aa37-36d4e40c37f3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE