./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_07_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_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/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_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_07_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/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_ed9c632a-4de2-4886-aaf6-669e8e84f065/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 3e9f883831e26fa081daada819b72a8b92fd78633e786ad7bf4cc7228a050c0b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:59,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:38:00,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 20:38:00,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:38:00,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:38:00,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:38:00,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:38:00,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:38:00,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:38:00,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:38:00,218 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:38:00,219 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:38:00,219 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:38:00,222 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:38:00,223 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:38:00,223 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:38:00,224 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:38:00,224 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:38:00,225 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:38:00,225 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:38:00,226 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:38:00,227 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:38:00,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:38:00,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:38:00,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:38:00,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:38:00,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:38:00,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:38:00,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:38:00,231 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:38:00,231 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:38:00,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:38:00,244 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:38:00,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:38:00,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:38:00,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:38:00,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:00,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:38:00,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:38:00,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:38:00,246 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:38:00,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:38:00,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:38:00,247 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:38:00,247 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:38:00,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:38:00,247 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_ed9c632a-4de2-4886-aaf6-669e8e84f065/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e9f883831e26fa081daada819b72a8b92fd78633e786ad7bf4cc7228a050c0b [2023-11-23 20:38:00,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:38:00,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:38:00,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:38:00,598 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:38:00,599 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:38:00,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_07_good.i [2023-11-23 20:38:04,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:38:04,583 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:38:04,583 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_07_good.i [2023-11-23 20:38:04,609 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/data/c60191c24/3ec2fb11dae74399a0d0f6b1e765858a/FLAGff5586f95 [2023-11-23 20:38:04,624 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/data/c60191c24/3ec2fb11dae74399a0d0f6b1e765858a [2023-11-23 20:38:04,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:38:04,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:38:04,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:04,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:38:04,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:38:04,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:04" (1/1) ... [2023-11-23 20:38:04,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27261c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:04, skipping insertion in model container [2023-11-23 20:38:04,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:04" (1/1) ... [2023-11-23 20:38:04,713 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:38:05,178 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:38:05,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:05,913 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:38:05,947 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:38:06,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:06,236 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:06,236 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:06,236 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:06,237 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:06,259 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:06,267 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:38:06,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06 WrapperNode [2023-11-23 20:38:06,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:06,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:06,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:38:06,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:38:06,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,352 INFO L138 Inliner]: procedures = 503, calls = 83, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2023-11-23 20:38:06,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:06,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:38:06,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:38:06,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:38:06,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:38:06,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:38:06,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:38:06,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:38:06,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (1/1) ... [2023-11-23 20:38:06,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:06,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:38:06,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:38:06,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:38:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:38:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:38:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:38:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:38:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:38:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:38:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:38:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:38:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:38:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:38:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:38:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:38:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:38:06,640 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:38:06,644 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:38:06,853 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:38:06,950 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:38:06,951 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:38:06,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:06 BoogieIcfgContainer [2023-11-23 20:38:06,955 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:38:06,958 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:38:06,958 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:38:06,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:38:06,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:38:04" (1/3) ... [2023-11-23 20:38:06,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16405e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:06, skipping insertion in model container [2023-11-23 20:38:06,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:06" (2/3) ... [2023-11-23 20:38:06,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16405e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:06, skipping insertion in model container [2023-11-23 20:38:06,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:06" (3/3) ... [2023-11-23 20:38:06,967 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_07_good.i [2023-11-23 20:38:06,985 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:38:06,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-23 20:38:07,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:38:07,040 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;@6fec4e52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:38:07,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-23 20:38:07,044 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 20:38:07,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:38:07,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:07,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:07,054 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 20:38:07,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:07,060 INFO L85 PathProgramCache]: Analyzing trace with hash -822237711, now seen corresponding path program 1 times [2023-11-23 20:38:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:07,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249814865] [2023-11-23 20:38:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:07,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:07,567 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 20:38:07,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:07,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249814865] [2023-11-23 20:38:07,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249814865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:07,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:07,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315157812] [2023-11-23 20:38:07,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:07,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:07,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:07,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:07,617 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 20:38:07,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:07,710 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2023-11-23 20:38:07,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:07,713 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 20:38:07,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:07,722 INFO L225 Difference]: With dead ends: 49 [2023-11-23 20:38:07,723 INFO L226 Difference]: Without dead ends: 42 [2023-11-23 20:38:07,726 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 20:38:07,731 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 2 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:07,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 141 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:07,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-23 20:38:07,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-23 20:38:07,774 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 20:38:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2023-11-23 20:38:07,777 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 8 [2023-11-23 20:38:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:07,779 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2023-11-23 20:38:07,779 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 20:38:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-23 20:38:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:38:07,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:07,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:07,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:38:07,782 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 20:38:07,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:07,783 INFO L85 PathProgramCache]: Analyzing trace with hash 280434798, now seen corresponding path program 1 times [2023-11-23 20:38:07,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:07,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730067027] [2023-11-23 20:38:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:07,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:08,240 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 20:38:08,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:08,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730067027] [2023-11-23 20:38:08,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730067027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:08,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:08,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:38:08,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332591225] [2023-11-23 20:38:08,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:08,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:38:08,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:38:08,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:38:08,249 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 20:38:08,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:08,406 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2023-11-23 20:38:08,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:38:08,406 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 20:38:08,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:08,409 INFO L225 Difference]: With dead ends: 71 [2023-11-23 20:38:08,409 INFO L226 Difference]: Without dead ends: 39 [2023-11-23 20:38:08,415 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 20:38:08,417 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 45 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:08,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 75 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-23 20:38:08,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-23 20:38:08,434 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 20:38:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2023-11-23 20:38:08,438 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 9 [2023-11-23 20:38:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:08,438 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2023-11-23 20:38:08,438 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 20:38:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-11-23 20:38:08,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:38:08,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:08,440 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:08,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:38:08,441 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 20:38:08,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:08,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1947678456, now seen corresponding path program 1 times [2023-11-23 20:38:08,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:08,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648756264] [2023-11-23 20:38:08,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:08,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:08,590 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 20:38:08,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:08,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648756264] [2023-11-23 20:38:08,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648756264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:08,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:08,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471292531] [2023-11-23 20:38:08,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:08,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:08,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:08,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:08,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:08,603 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 20:38:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:08,683 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2023-11-23 20:38:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:08,690 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 20:38:08,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:08,692 INFO L225 Difference]: With dead ends: 39 [2023-11-23 20:38:08,692 INFO L226 Difference]: Without dead ends: 38 [2023-11-23 20:38:08,692 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 20:38:08,693 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:08,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 90 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:08,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-23 20:38:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-23 20:38:08,700 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 20:38:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-23 20:38:08,701 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 14 [2023-11-23 20:38:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:08,702 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-23 20:38:08,702 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 20:38:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-23 20:38:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:38:08,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:08,703 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:08,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:38:08,704 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 20:38:08,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash -248489904, now seen corresponding path program 1 times [2023-11-23 20:38:08,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:08,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162414243] [2023-11-23 20:38:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:08,967 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 20:38:08,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:08,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162414243] [2023-11-23 20:38:08,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162414243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:08,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:08,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:38:08,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173527663] [2023-11-23 20:38:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:08,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:38:08,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:08,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:38:08,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:38:08,971 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:38:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:09,081 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-11-23 20:38:09,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:38:09,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:38:09,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:09,083 INFO L225 Difference]: With dead ends: 38 [2023-11-23 20:38:09,084 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 20:38:09,084 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 20:38:09,086 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 39 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:09,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 69 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:09,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 20:38:09,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-23 20:38:09,093 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 20:38:09,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-11-23 20:38:09,095 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 15 [2023-11-23 20:38:09,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:09,095 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-11-23 20:38:09,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:38:09,096 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-11-23 20:38:09,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:38:09,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:09,097 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 20:38:09,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:38:09,098 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 20:38:09,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1867622927, now seen corresponding path program 1 times [2023-11-23 20:38:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:09,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637076864] [2023-11-23 20:38:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:09,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:09,171 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 20:38:09,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:09,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637076864] [2023-11-23 20:38:09,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637076864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:09,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:09,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:38:09,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162259725] [2023-11-23 20:38:09,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:09,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:09,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:09,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:09,176 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 20:38:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:09,219 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2023-11-23 20:38:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:09,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 20:38:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:09,221 INFO L225 Difference]: With dead ends: 37 [2023-11-23 20:38:09,221 INFO L226 Difference]: Without dead ends: 36 [2023-11-23 20:38:09,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:09,223 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:09,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 58 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:38:09,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-23 20:38:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-23 20:38:09,230 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 20:38:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-11-23 20:38:09,232 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 20 [2023-11-23 20:38:09,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:09,232 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-11-23 20:38:09,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 20:38:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-23 20:38:09,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:38:09,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:09,234 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 20:38:09,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:38:09,235 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 20:38:09,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:09,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2061735775, now seen corresponding path program 1 times [2023-11-23 20:38:09,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:09,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808592198] [2023-11-23 20:38:09,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:09,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:09,298 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 20:38:09,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:09,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808592198] [2023-11-23 20:38:09,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808592198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:09,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:09,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:38:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335521917] [2023-11-23 20:38:09,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:09,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:09,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:09,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:09,305 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 20:38:09,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:09,337 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2023-11-23 20:38:09,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:09,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 20:38:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:09,339 INFO L225 Difference]: With dead ends: 36 [2023-11-23 20:38:09,339 INFO L226 Difference]: Without dead ends: 35 [2023-11-23 20:38:09,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:09,340 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:09,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:38:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-23 20:38:09,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-23 20:38:09,356 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 20:38:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-11-23 20:38:09,357 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 21 [2023-11-23 20:38:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:09,358 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-11-23 20:38:09,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 20:38:09,358 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-23 20:38:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:38:09,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:09,360 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 20:38:09,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:38:09,360 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 20:38:09,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:09,361 INFO L85 PathProgramCache]: Analyzing trace with hash -48060646, now seen corresponding path program 1 times [2023-11-23 20:38:09,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:09,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216766089] [2023-11-23 20:38:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:09,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:09,453 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 20:38:09,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:09,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216766089] [2023-11-23 20:38:09,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216766089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:09,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:09,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:09,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821841612] [2023-11-23 20:38:09,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:09,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:09,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:09,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:09,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:09,457 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 20:38:09,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:09,495 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-11-23 20:38:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:09,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 20:38:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:09,497 INFO L225 Difference]: With dead ends: 35 [2023-11-23 20:38:09,497 INFO L226 Difference]: Without dead ends: 34 [2023-11-23 20:38:09,498 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 20:38:09,498 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 24 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:09,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 50 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:38:09,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-23 20:38:09,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-23 20:38:09,504 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 20:38:09,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2023-11-23 20:38:09,504 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 28 [2023-11-23 20:38:09,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:09,505 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2023-11-23 20:38:09,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 20:38:09,505 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2023-11-23 20:38:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:38:09,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:09,507 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 20:38:09,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 20:38:09,507 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 20:38:09,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:09,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1489879893, now seen corresponding path program 1 times [2023-11-23 20:38:09,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:09,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208370630] [2023-11-23 20:38:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:09,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:09,609 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 20:38:09,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:09,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208370630] [2023-11-23 20:38:09,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208370630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:09,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:09,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:09,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548013174] [2023-11-23 20:38:09,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:09,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:09,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:09,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:09,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:09,612 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 20:38:09,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:09,651 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-11-23 20:38:09,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:09,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 20:38:09,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:09,653 INFO L225 Difference]: With dead ends: 34 [2023-11-23 20:38:09,653 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:38:09,653 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 20:38:09,654 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 21 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:09,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:38:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:38:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:38:09,656 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 20:38:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:38:09,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-11-23 20:38:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:09,656 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:38:09,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 20:38:09,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:38:09,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:38:09,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-23 20:38:09,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-23 20:38:09,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-23 20:38:09,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-23 20:38:09,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-23 20:38:09,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-23 20:38:09,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-23 20:38:09,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-23 20:38:09,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 20:38:09,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:38:09,704 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-23 20:38:09,704 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-23 20:38:09,704 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-23 20:38:09,704 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-23 20:38:09,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1586) no Hoare annotation was computed. [2023-11-23 20:38:09,705 INFO L899 garLoopResultBuilder]: For program point L1563(lines 1563 1571) no Hoare annotation was computed. [2023-11-23 20:38:09,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1626) no Hoare annotation was computed. [2023-11-23 20:38:09,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1565) no Hoare annotation was computed. [2023-11-23 20:38:09,705 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1565) no Hoare annotation was computed. [2023-11-23 20:38:09,706 INFO L899 garLoopResultBuilder]: For program point L1565(line 1565) no Hoare annotation was computed. [2023-11-23 20:38:09,706 INFO L899 garLoopResultBuilder]: For program point L1565-1(line 1565) no Hoare annotation was computed. [2023-11-23 20:38:09,706 INFO L899 garLoopResultBuilder]: For program point L1615(lines 1615 1630) no Hoare annotation was computed. [2023-11-23 20:38:09,706 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1593) no Hoare annotation was computed. [2023-11-23 20:38:09,706 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:38:09,706 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1606) no Hoare annotation was computed. [2023-11-23 20:38:09,707 INFO L895 garLoopResultBuilder]: At program point L1566(line 1566) the Hoare annotation is: (and (= ~staticFive~0 5) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G1_~#data~0#1.base|) |ULTIMATE.start_goodB2G1_~#data~0#1.offset|) 2147483647)) [2023-11-23 20:38:09,707 INFO L899 garLoopResultBuilder]: For program point L1599-1(lines 1596 1614) no Hoare annotation was computed. [2023-11-23 20:38:09,707 INFO L899 garLoopResultBuilder]: For program point L1566-1(line 1566) no Hoare annotation was computed. [2023-11-23 20:38:09,707 INFO L895 garLoopResultBuilder]: At program point L1591(line 1591) the Hoare annotation is: (and (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G2_~#data~1#1.base|) |ULTIMATE.start_goodB2G2_~#data~1#1.offset|) 2147483647) (= ~staticFive~0 5)) [2023-11-23 20:38:09,708 INFO L895 garLoopResultBuilder]: At program point L1641(line 1641) the Hoare annotation is: (= ~staticFive~0 5) [2023-11-23 20:38:09,708 INFO L899 garLoopResultBuilder]: For program point L1641-1(line 1641) no Hoare annotation was computed. [2023-11-23 20:38:09,708 INFO L895 garLoopResultBuilder]: At program point L1559(line 1559) the Hoare annotation is: false [2023-11-23 20:38:09,708 INFO L899 garLoopResultBuilder]: For program point L1584(lines 1584 1592) no Hoare annotation was computed. [2023-11-23 20:38:09,708 INFO L895 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: false [2023-11-23 20:38:09,708 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1610) no Hoare annotation was computed. [2023-11-23 20:38:09,709 INFO L899 garLoopResultBuilder]: For program point L1626(line 1626) no Hoare annotation was computed. [2023-11-23 20:38:09,709 INFO L899 garLoopResultBuilder]: For program point L1626-1(line 1626) no Hoare annotation was computed. [2023-11-23 20:38:09,709 INFO L902 garLoopResultBuilder]: At program point L1643(line 1643) the Hoare annotation is: true [2023-11-23 20:38:09,709 INFO L899 garLoopResultBuilder]: For program point L1610(line 1610) no Hoare annotation was computed. [2023-11-23 20:38:09,709 INFO L899 garLoopResultBuilder]: For program point L1643-1(line 1643) no Hoare annotation was computed. [2023-11-23 20:38:09,709 INFO L899 garLoopResultBuilder]: For program point L1610-1(line 1610) no Hoare annotation was computed. [2023-11-23 20:38:09,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:38:09,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1610) no Hoare annotation was computed. [2023-11-23 20:38:09,710 INFO L902 garLoopResultBuilder]: At program point L1627(line 1627) the Hoare annotation is: true [2023-11-23 20:38:09,710 INFO L899 garLoopResultBuilder]: For program point L1627-1(line 1627) no Hoare annotation was computed. [2023-11-23 20:38:09,710 INFO L899 garLoopResultBuilder]: For program point L1586(line 1586) no Hoare annotation was computed. [2023-11-23 20:38:09,711 INFO L899 garLoopResultBuilder]: For program point L1586-1(line 1586) no Hoare annotation was computed. [2023-11-23 20:38:09,711 INFO L899 garLoopResultBuilder]: For program point L1619-2(lines 1616 1630) no Hoare annotation was computed. [2023-11-23 20:38:09,711 INFO L899 garLoopResultBuilder]: For program point L1553-2(lines 1550 1573) no Hoare annotation was computed. [2023-11-23 20:38:09,711 INFO L895 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: (and (= ~staticFive~0 5) (= (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|) 0)) [2023-11-23 20:38:09,711 INFO L899 garLoopResultBuilder]: For program point L1611-1(line 1611) no Hoare annotation was computed. [2023-11-23 20:38:09,711 INFO L899 garLoopResultBuilder]: For program point L1578-2(lines 1575 1594) no Hoare annotation was computed. [2023-11-23 20:38:09,712 INFO L895 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: (and (= ~staticFive~0 5) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G1_~#data~0#1.base|) |ULTIMATE.start_goodB2G1_~#data~0#1.offset|) 2147483647)) [2023-11-23 20:38:09,712 INFO L899 garLoopResultBuilder]: For program point L1570-1(lines 1557 1572) no Hoare annotation was computed. [2023-11-23 20:38:09,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1586) no Hoare annotation was computed. [2023-11-23 20:38:09,712 INFO L899 garLoopResultBuilder]: For program point L1595(lines 1595 1614) no Hoare annotation was computed. [2023-11-23 20:38:09,713 INFO L895 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: (and (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G2_~#data~1#1.base|) |ULTIMATE.start_goodB2G2_~#data~1#1.offset|) 2147483647) (= ~staticFive~0 5)) [2023-11-23 20:38:09,713 INFO L899 garLoopResultBuilder]: For program point L1587-1(line 1587) no Hoare annotation was computed. [2023-11-23 20:38:09,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1626) no Hoare annotation was computed. [2023-11-23 20:38:09,716 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:09,719 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:38:09,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:38:09 BoogieIcfgContainer [2023-11-23 20:38:09,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:38:09,725 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:38:09,725 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:38:09,725 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:38:09,726 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:06" (3/4) ... [2023-11-23 20:38:09,728 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:38:09,731 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:38:09,732 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:38:09,738 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-23 20:38:09,738 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 20:38:09,739 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 20:38:09,739 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:38:09,842 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:38:09,843 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:38:09,843 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:38:09,844 INFO L158 Benchmark]: Toolchain (without parser) took 5216.18ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 124.3MB in the beginning and 161.7MB in the end (delta: -37.4MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2023-11-23 20:38:09,844 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:38:09,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1639.24ms. Allocated memory is still 161.5MB. Free memory was 124.3MB in the beginning and 117.5MB in the end (delta: 6.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-23 20:38:09,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.20ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:38:09,845 INFO L158 Benchmark]: Boogie Preprocessor took 34.77ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 113.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:38:09,846 INFO L158 Benchmark]: RCFGBuilder took 566.76ms. Allocated memory is still 161.5MB. Free memory was 113.3MB in the beginning and 92.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 20:38:09,846 INFO L158 Benchmark]: TraceAbstraction took 2766.28ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 92.3MB in the beginning and 61.7MB in the end (delta: 30.6MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2023-11-23 20:38:09,847 INFO L158 Benchmark]: Witness Printer took 118.58ms. Allocated memory is still 195.0MB. Free memory was 61.7MB in the beginning and 161.7MB in the end (delta: -100.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:38:09,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1639.24ms. Allocated memory is still 161.5MB. Free memory was 124.3MB in the beginning and 117.5MB in the end (delta: 6.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.20ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.77ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 113.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 566.76ms. Allocated memory is still 161.5MB. Free memory was 113.3MB in the beginning and 92.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2766.28ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 92.3MB in the beginning and 61.7MB in the end (delta: 30.6MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Witness Printer took 118.58ms. Allocated memory is still 195.0MB. Free memory was 61.7MB in the beginning and 161.7MB in the end (delta: -100.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1626]: 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: 2.7s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 591 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 241 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 34, 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, 5 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 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 20:38:09,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed9c632a-4de2-4886-aaf6-669e8e84f065/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE