./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_06_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_06_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8903df13d1a52c4ea21f4a848a37346dc5f88197b911fa568769d2ffa762803 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:48,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:48,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:21:48,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:48,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:48,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:48,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:48,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:48,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:48,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:48,680 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:48,681 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:48,682 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:48,684 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:21:48,684 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:48,685 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:48,685 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:21:48,686 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:21:48,686 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:48,687 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:21:48,688 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:21:48,688 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:21:48,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:48,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:48,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:21:48,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:48,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:48,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:48,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:48,693 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:21:48,695 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:21:48,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:48,705 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:48,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:48,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:48,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:48,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:48,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:48,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:48,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:48,709 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:21:48,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:21:48,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:48,710 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:48,711 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:48,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:48,711 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8903df13d1a52c4ea21f4a848a37346dc5f88197b911fa568769d2ffa762803 [2023-11-23 21:21:49,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:49,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:49,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:49,083 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:49,085 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:49,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_06_good.i [2023-11-23 21:21:52,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:53,099 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:53,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_06_good.i [2023-11-23 21:21:53,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/data/688e02716/97464f8c60164d75924f020171ea6062/FLAGc0b89731a [2023-11-23 21:21:53,161 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/data/688e02716/97464f8c60164d75924f020171ea6062 [2023-11-23 21:21:53,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:53,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:53,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:53,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:53,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:53,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:53" (1/1) ... [2023-11-23 21:21:53,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c74a3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:53, skipping insertion in model container [2023-11-23 21:21:53,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:53" (1/1) ... [2023-11-23 21:21:53,285 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:53,741 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:21:54,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:54,535 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:54,567 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:21:54,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:54,890 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,891 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,891 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,891 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,892 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:54,901 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:54,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54 WrapperNode [2023-11-23 21:21:54,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:54,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:54,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:54,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:54,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,021 INFO L138 Inliner]: procedures = 503, calls = 87, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118 [2023-11-23 21:21:55,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:55,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:55,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:55,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:55,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:55,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:55,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:55,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:55,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:55,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:55,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:55,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 21:21:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 21:21:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 21:21:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 21:21:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:21:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:21:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:21:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 21:21:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:21:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:21:55,477 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:55,479 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:55,740 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:21:55,881 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:21:55,894 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:21:55,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:55 BoogieIcfgContainer [2023-11-23 21:21:55,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:21:55,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:21:55,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:21:55,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:21:55,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:53" (1/3) ... [2023-11-23 21:21:55,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7874d0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:55, skipping insertion in model container [2023-11-23 21:21:55,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (2/3) ... [2023-11-23 21:21:55,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7874d0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:55, skipping insertion in model container [2023-11-23 21:21:55,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:55" (3/3) ... [2023-11-23 21:21:55,914 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_06_good.i [2023-11-23 21:21:55,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:21:55,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-23 21:21:56,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:56,025 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=FINITE_AUTOMATA, 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;@327aae72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:56,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-23 21:21:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:21:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:21:56,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:56,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:56,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:56,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1729919250, now seen corresponding path program 1 times [2023-11-23 21:21:56,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:56,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023305202] [2023-11-23 21:21:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:56,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:56,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:56,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023305202] [2023-11-23 21:21:56,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023305202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:56,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:56,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:21:56,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507569873] [2023-11-23 21:21:56,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:56,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:21:56,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:56,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:21:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:21:56,643 INFO L87 Difference]: Start difference. First operand has 49 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 40 states have internal predecessors, (43), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-23 21:21:56,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:56,775 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2023-11-23 21:21:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:21:56,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 8 [2023-11-23 21:21:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:56,789 INFO L225 Difference]: With dead ends: 49 [2023-11-23 21:21:56,790 INFO L226 Difference]: Without dead ends: 42 [2023-11-23 21:21:56,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:21:56,798 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 2 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:56,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 140 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:56,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-23 21:21:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-23 21:21:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.48) internal successors, (37), 35 states have internal predecessors, (37), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:21:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2023-11-23 21:21:56,850 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 8 [2023-11-23 21:21:56,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:56,852 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2023-11-23 21:21:56,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-23 21:21:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-23 21:21:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:21:56,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:56,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:56,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:21:56,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:56,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:56,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2087889261, now seen corresponding path program 1 times [2023-11-23 21:21:56,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:56,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374566601] [2023-11-23 21:21:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:56,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:57,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:57,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:57,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374566601] [2023-11-23 21:21:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374566601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:57,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:57,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:21:57,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682399099] [2023-11-23 21:21:57,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:57,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:21:57,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:57,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:21:57,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:21:57,326 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2023-11-23 21:21:57,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:57,519 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2023-11-23 21:21:57,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:21:57,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 [2023-11-23 21:21:57,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:57,521 INFO L225 Difference]: With dead ends: 71 [2023-11-23 21:21:57,522 INFO L226 Difference]: Without dead ends: 39 [2023-11-23 21:21:57,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:21:57,525 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 44 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:57,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 74 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:57,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-23 21:21:57,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-23 21:21:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.28) internal successors, (32), 32 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:21:57,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2023-11-23 21:21:57,538 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 9 [2023-11-23 21:21:57,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:57,539 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2023-11-23 21:21:57,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2023-11-23 21:21:57,539 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-11-23 21:21:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 21:21:57,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:57,541 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:57,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:21:57,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:57,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:57,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1442268786, now seen corresponding path program 1 times [2023-11-23 21:21:57,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:57,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475484277] [2023-11-23 21:21:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:57,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:21:57,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:57,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475484277] [2023-11-23 21:21:57,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475484277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:57,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:57,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:21:57,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873768595] [2023-11-23 21:21:57,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:57,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:21:57,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:21:57,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:21:57,737 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-23 21:21:57,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:57,810 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2023-11-23 21:21:57,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:21:57,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 14 [2023-11-23 21:21:57,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:57,813 INFO L225 Difference]: With dead ends: 39 [2023-11-23 21:21:57,813 INFO L226 Difference]: Without dead ends: 38 [2023-11-23 21:21:57,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:21:57,816 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:57,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 89 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:57,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-23 21:21:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-23 21:21:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.24) internal successors, (31), 31 states have internal predecessors, (31), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:21:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-23 21:21:57,826 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 14 [2023-11-23 21:21:57,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:57,827 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-23 21:21:57,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-23 21:21:57,828 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-23 21:21:57,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:21:57,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:57,829 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:57,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:21:57,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:57,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:57,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1760659318, now seen corresponding path program 1 times [2023-11-23 21:21:57,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:57,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786544140] [2023-11-23 21:21:57,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:57,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:58,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:21:58,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786544140] [2023-11-23 21:21:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786544140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:58,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:58,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:21:58,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494312999] [2023-11-23 21:21:58,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:58,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:21:58,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:58,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:21:58,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:21:58,064 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-23 21:21:58,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:58,189 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-11-23 21:21:58,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:21:58,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15 [2023-11-23 21:21:58,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:58,193 INFO L225 Difference]: With dead ends: 38 [2023-11-23 21:21:58,193 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 21:21:58,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:21:58,205 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 38 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:58,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 69 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 21:21:58,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-23 21:21:58,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.2) internal successors, (30), 30 states have internal predecessors, (30), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:21:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-11-23 21:21:58,225 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 15 [2023-11-23 21:21:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:58,226 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-11-23 21:21:58,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-23 21:21:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-11-23 21:21:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:21:58,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:58,228 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:58,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:21:58,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:58,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash -476260968, now seen corresponding path program 1 times [2023-11-23 21:21:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:58,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032741667] [2023-11-23 21:21:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:58,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:21:58,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:58,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032741667] [2023-11-23 21:21:58,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032741667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:58,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:58,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:21:58,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543217381] [2023-11-23 21:21:58,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:58,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:21:58,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:58,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:21:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:21:58,415 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:21:58,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:58,472 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2023-11-23 21:21:58,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:21:58,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-11-23 21:21:58,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:58,475 INFO L225 Difference]: With dead ends: 37 [2023-11-23 21:21:58,475 INFO L226 Difference]: Without dead ends: 36 [2023-11-23 21:21:58,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:21:58,482 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:58,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 89 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:21:58,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-23 21:21:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-23 21:21:58,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.16) internal successors, (29), 29 states have internal predecessors, (29), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:21:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-11-23 21:21:58,498 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 20 [2023-11-23 21:21:58,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:58,498 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-11-23 21:21:58,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:21:58,499 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-23 21:21:58,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 21:21:58,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:58,501 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:58,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:21:58,502 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:58,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1879188006, now seen corresponding path program 1 times [2023-11-23 21:21:58,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306923997] [2023-11-23 21:21:58,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:21:58,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:58,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306923997] [2023-11-23 21:21:58,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306923997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:58,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:58,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:21:58,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153420560] [2023-11-23 21:21:58,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:58,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:21:58,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:58,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:21:58,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:21:58,605 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:21:58,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:58,668 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2023-11-23 21:21:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:21:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2023-11-23 21:21:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:58,670 INFO L225 Difference]: With dead ends: 36 [2023-11-23 21:21:58,670 INFO L226 Difference]: Without dead ends: 35 [2023-11-23 21:21:58,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:21:58,672 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:58,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 87 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:21:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-23 21:21:58,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-23 21:21:58,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.12) internal successors, (28), 28 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:21:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-11-23 21:21:58,689 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 21 [2023-11-23 21:21:58,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:58,690 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-11-23 21:21:58,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:21:58,690 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-23 21:21:58,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:21:58,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:58,692 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:58,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:21:58,693 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:58,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:58,693 INFO L85 PathProgramCache]: Analyzing trace with hash 767992454, now seen corresponding path program 1 times [2023-11-23 21:21:58,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:58,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925426808] [2023-11-23 21:21:58,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:58,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:21:58,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925426808] [2023-11-23 21:21:58,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925426808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:58,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:58,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:21:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536982263] [2023-11-23 21:21:58,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:58,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:21:58,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:21:58,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:21:58,861 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 21:21:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:58,939 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-11-23 21:21:58,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:21:58,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-11-23 21:21:58,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:58,942 INFO L225 Difference]: With dead ends: 35 [2023-11-23 21:21:58,943 INFO L226 Difference]: Without dead ends: 34 [2023-11-23 21:21:58,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:21:58,945 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:58,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 75 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:21:58,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-23 21:21:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-23 21:21:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:21:58,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2023-11-23 21:21:58,965 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 28 [2023-11-23 21:21:58,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:58,966 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2023-11-23 21:21:58,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 21:21:58,967 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2023-11-23 21:21:58,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:21:58,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:58,968 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:58,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:21:58,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:21:58,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:58,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1962037569, now seen corresponding path program 1 times [2023-11-23 21:21:58,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:58,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600648827] [2023-11-23 21:21:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:58,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:59,140 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:21:59,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:59,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600648827] [2023-11-23 21:21:59,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600648827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:59,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:59,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:21:59,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011355968] [2023-11-23 21:21:59,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:59,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:21:59,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:21:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:21:59,144 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 21:21:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:59,229 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-11-23 21:21:59,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:21:59,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-23 21:21:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:59,233 INFO L225 Difference]: With dead ends: 34 [2023-11-23 21:21:59,233 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:21:59,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:21:59,236 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:59,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 75 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:21:59,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:21:59,237 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) [2023-11-23 21:21:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:21:59,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-11-23 21:21:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:59,238 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:21:59,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 21:21:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:21:59,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:21:59,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-23 21:21:59,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-23 21:21:59,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-23 21:21:59,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-23 21:21:59,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-23 21:21:59,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-23 21:21:59,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-23 21:21:59,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-23 21:21:59,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:21:59,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:21:59,292 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-23 21:21:59,293 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-23 21:21:59,293 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-23 21:21:59,293 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-23 21:21:59,293 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1587) no Hoare annotation was computed. [2023-11-23 21:21:59,294 INFO L899 garLoopResultBuilder]: For program point L1629(line 1629) no Hoare annotation was computed. [2023-11-23 21:21:59,294 INFO L899 garLoopResultBuilder]: For program point L1629-1(line 1629) no Hoare annotation was computed. [2023-11-23 21:21:59,294 INFO L899 garLoopResultBuilder]: For program point L1563(lines 1563 1572) no Hoare annotation was computed. [2023-11-23 21:21:59,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1629) no Hoare annotation was computed. [2023-11-23 21:21:59,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1565) no Hoare annotation was computed. [2023-11-23 21:21:59,296 INFO L899 garLoopResultBuilder]: For program point L1597(lines 1597 1617) no Hoare annotation was computed. [2023-11-23 21:21:59,297 INFO L895 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: (and (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G2_~#data~1#1.base|) |ULTIMATE.start_goodB2G2_~#data~1#1.offset|) 2147483647) (= ~STATIC_CONST_FIVE~0 5)) [2023-11-23 21:21:59,297 INFO L899 garLoopResultBuilder]: For program point L1589-1(line 1589) no Hoare annotation was computed. [2023-11-23 21:21:59,297 INFO L899 garLoopResultBuilder]: For program point L1622-2(lines 1619 1634) no Hoare annotation was computed. [2023-11-23 21:21:59,297 INFO L902 garLoopResultBuilder]: At program point L1647(line 1647) the Hoare annotation is: true [2023-11-23 21:21:59,298 INFO L895 garLoopResultBuilder]: At program point L1614(line 1614) the Hoare annotation is: (and (= ~STATIC_CONST_FIVE~0 5) (<= (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|) 0)) [2023-11-23 21:21:59,298 INFO L899 garLoopResultBuilder]: For program point L1647-1(line 1647) no Hoare annotation was computed. [2023-11-23 21:21:59,299 INFO L899 garLoopResultBuilder]: For program point L1614-1(line 1614) no Hoare annotation was computed. [2023-11-23 21:21:59,299 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1565) no Hoare annotation was computed. [2023-11-23 21:21:59,299 INFO L902 garLoopResultBuilder]: At program point L1631(line 1631) the Hoare annotation is: true [2023-11-23 21:21:59,300 INFO L899 garLoopResultBuilder]: For program point L1631-1(line 1631) no Hoare annotation was computed. [2023-11-23 21:21:59,300 INFO L899 garLoopResultBuilder]: For program point L1565(line 1565) no Hoare annotation was computed. [2023-11-23 21:21:59,300 INFO L899 garLoopResultBuilder]: For program point L1565-1(line 1565) no Hoare annotation was computed. [2023-11-23 21:21:59,300 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:21:59,300 INFO L899 garLoopResultBuilder]: For program point L1583(lines 1583 1595) no Hoare annotation was computed. [2023-11-23 21:21:59,301 INFO L895 garLoopResultBuilder]: At program point L1567(line 1567) the Hoare annotation is: (and (= ~STATIC_CONST_FIVE~0 5) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G1_~#data~0#1.base|) |ULTIMATE.start_goodB2G1_~#data~0#1.offset|) 2147483647)) [2023-11-23 21:21:59,301 INFO L899 garLoopResultBuilder]: For program point L1567-1(line 1567) no Hoare annotation was computed. [2023-11-23 21:21:59,301 INFO L895 garLoopResultBuilder]: At program point L1559(line 1559) the Hoare annotation is: false [2023-11-23 21:21:59,301 INFO L899 garLoopResultBuilder]: For program point L1601(lines 1601 1608) no Hoare annotation was computed. [2023-11-23 21:21:59,301 INFO L899 garLoopResultBuilder]: For program point L1601-1(lines 1598 1617) no Hoare annotation was computed. [2023-11-23 21:21:59,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1612) no Hoare annotation was computed. [2023-11-23 21:21:59,302 INFO L895 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: (and (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G2_~#data~1#1.base|) |ULTIMATE.start_goodB2G2_~#data~1#1.offset|) 2147483647) (= ~STATIC_CONST_FIVE~0 5)) [2023-11-23 21:21:59,302 INFO L899 garLoopResultBuilder]: For program point L1618(lines 1618 1634) no Hoare annotation was computed. [2023-11-23 21:21:59,302 INFO L899 garLoopResultBuilder]: For program point L1585(lines 1585 1594) no Hoare annotation was computed. [2023-11-23 21:21:59,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:21:59,303 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1612) no Hoare annotation was computed. [2023-11-23 21:21:59,303 INFO L899 garLoopResultBuilder]: For program point L1553-2(lines 1550 1574) no Hoare annotation was computed. [2023-11-23 21:21:59,303 INFO L895 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: false [2023-11-23 21:21:59,303 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1587) no Hoare annotation was computed. [2023-11-23 21:21:59,303 INFO L899 garLoopResultBuilder]: For program point L1587(line 1587) no Hoare annotation was computed. [2023-11-23 21:21:59,303 INFO L899 garLoopResultBuilder]: For program point L1587-1(line 1587) no Hoare annotation was computed. [2023-11-23 21:21:59,304 INFO L895 garLoopResultBuilder]: At program point L1645(line 1645) the Hoare annotation is: (= ~STATIC_CONST_FIVE~0 5) [2023-11-23 21:21:59,304 INFO L899 garLoopResultBuilder]: For program point L1645-1(line 1645) no Hoare annotation was computed. [2023-11-23 21:21:59,304 INFO L899 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2023-11-23 21:21:59,304 INFO L899 garLoopResultBuilder]: For program point L1612-1(line 1612) no Hoare annotation was computed. [2023-11-23 21:21:59,304 INFO L899 garLoopResultBuilder]: For program point L1579-2(lines 1576 1596) no Hoare annotation was computed. [2023-11-23 21:21:59,305 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1629) no Hoare annotation was computed. [2023-11-23 21:21:59,305 INFO L895 garLoopResultBuilder]: At program point L1571(line 1571) the Hoare annotation is: (and (= ~STATIC_CONST_FIVE~0 5) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G1_~#data~0#1.base|) |ULTIMATE.start_goodB2G1_~#data~0#1.offset|) 2147483647)) [2023-11-23 21:21:59,305 INFO L899 garLoopResultBuilder]: For program point L1571-1(lines 1557 1573) no Hoare annotation was computed. [2023-11-23 21:21:59,308 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:59,311 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:21:59,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:21:59 BoogieIcfgContainer [2023-11-23 21:21:59,320 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:21:59,321 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:21:59,321 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:21:59,321 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:21:59,322 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:55" (3/4) ... [2023-11-23 21:21:59,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:21:59,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 21:21:59,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 21:21:59,340 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-23 21:21:59,341 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 21:21:59,341 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 21:21:59,342 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:21:59,465 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:21:59,465 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:21:59,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:21:59,466 INFO L158 Benchmark]: Toolchain (without parser) took 6300.28ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 138.0MB in the beginning and 69.2MB in the end (delta: 68.8MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. [2023-11-23 21:21:59,467 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:21:59,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1734.72ms. Allocated memory is still 172.0MB. Free memory was 137.6MB in the beginning and 131.5MB in the end (delta: 6.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2023-11-23 21:21:59,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.22ms. Allocated memory is still 172.0MB. Free memory was 131.5MB in the beginning and 128.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:21:59,469 INFO L158 Benchmark]: Boogie Preprocessor took 79.62ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:21:59,469 INFO L158 Benchmark]: RCFGBuilder took 793.30ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 121.4MB in the end (delta: 4.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-11-23 21:21:59,470 INFO L158 Benchmark]: TraceAbstraction took 3420.64ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.9MB in the beginning and 74.4MB in the end (delta: 46.5MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2023-11-23 21:21:59,472 INFO L158 Benchmark]: Witness Printer took 144.61ms. Allocated memory is still 207.6MB. Free memory was 74.4MB in the beginning and 69.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:21:59,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1734.72ms. Allocated memory is still 172.0MB. Free memory was 137.6MB in the beginning and 131.5MB in the end (delta: 6.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.22ms. Allocated memory is still 172.0MB. Free memory was 131.5MB in the beginning and 128.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.62ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 793.30ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 121.4MB in the end (delta: 4.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3420.64ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 120.9MB in the beginning and 74.4MB in the end (delta: 46.5MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. * Witness Printer took 144.61ms. Allocated memory is still 207.6MB. Free memory was 74.4MB in the beginning and 69.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 1565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1587]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1587]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: 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, 49 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 698 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 458 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 240 mSDtfsCounter, 299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 23 PreInvPairs, 26 NumberOfFragments, 62 HoareAnnotationTreeSize, 23 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 316 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 28/28 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 21:21:59,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5536ce5-ef96-4976-95ac-bf1712de8fbf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE