./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/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_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/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_b481899a-8b3a-46a9-8df0-cc4719be301f/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 b7344d097d65f119e03a45c632facc61e6810404367546208343f8dd8218e1be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:00,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:01,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:18:01,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:01,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:01,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:01,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:01,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:01,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:01,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:01,124 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:01,126 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:01,126 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:01,128 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:01,129 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:01,129 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:01,130 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:01,130 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:01,131 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:01,131 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:01,132 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:01,132 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:01,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:01,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:01,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:01,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:01,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:01,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:01,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:01,137 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:18:01,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:18:01,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:01,161 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:01,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:01,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:01,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:01,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:01,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:01,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:01,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:01,164 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:01,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:01,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:01,165 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:01,166 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:01,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:01,166 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_b481899a-8b3a-46a9-8df0-cc4719be301f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7344d097d65f119e03a45c632facc61e6810404367546208343f8dd8218e1be [2023-11-23 21:18:01,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:01,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:01,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:01,593 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:01,595 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:01,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_good.i [2023-11-23 21:18:04,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:05,443 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:05,444 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_good.i [2023-11-23 21:18:05,488 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/data/ce83a5ce1/4bf6a6a07dcc46039e14af0c780c2ba4/FLAG595fc7522 [2023-11-23 21:18:05,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/data/ce83a5ce1/4bf6a6a07dcc46039e14af0c780c2ba4 [2023-11-23 21:18:05,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:05,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:05,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:05,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:05,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:05,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:05" (1/1) ... [2023-11-23 21:18:05,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab22044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:05, skipping insertion in model container [2023-11-23 21:18:05,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:05" (1/1) ... [2023-11-23 21:18:05,625 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:06,094 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:18:06,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:06,729 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:06,751 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:18:06,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:07,079 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:07,079 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:07,080 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:07,080 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:07,080 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:07,089 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:07,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07 WrapperNode [2023-11-23 21:18:07,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:07,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:07,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:07,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:07,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,219 INFO L138 Inliner]: procedures = 505, calls = 70, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 184 [2023-11-23 21:18:07,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:07,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:07,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:07,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:07,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:07,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:07,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:07,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:07,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (1/1) ... [2023-11-23 21:18:07,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:07,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:07,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:07,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 21:18:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 21:18:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 21:18:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 21:18:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 21:18:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:07,602 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:07,604 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:08,044 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:08,504 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:08,505 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:18:08,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:08 BoogieIcfgContainer [2023-11-23 21:18:08,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:08,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:08,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:08,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:08,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:05" (1/3) ... [2023-11-23 21:18:08,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2679d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:08, skipping insertion in model container [2023-11-23 21:18:08,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:07" (2/3) ... [2023-11-23 21:18:08,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2679d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:08, skipping insertion in model container [2023-11-23 21:18:08,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:08" (3/3) ... [2023-11-23 21:18:08,518 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_22_good.i [2023-11-23 21:18:08,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:08,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 21:18:08,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:08,608 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;@1118ace5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:08,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 21:18:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:18:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:18:08,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:08,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:08,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:08,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1649465872, now seen corresponding path program 1 times [2023-11-23 21:18:08,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:08,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995607950] [2023-11-23 21:18:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:08,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:18:09,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:09,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995607950] [2023-11-23 21:18:09,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995607950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:09,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:09,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:18:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96097686] [2023-11-23 21:18:09,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:09,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:09,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:09,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:09,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:09,357 INFO L87 Difference]: Start difference. First operand has 39 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:18:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:09,455 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2023-11-23 21:18:09,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:09,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2023-11-23 21:18:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:09,469 INFO L225 Difference]: With dead ends: 39 [2023-11-23 21:18:09,469 INFO L226 Difference]: Without dead ends: 32 [2023-11-23 21:18:09,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:18:09,480 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:09,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 73 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:18:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-23 21:18:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-23 21:18:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 26 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:18:09,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-11-23 21:18:09,540 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 8 [2023-11-23 21:18:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:09,542 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-11-23 21:18:09,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:18:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-23 21:18:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:18:09,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:09,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:09,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:18:09,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:09,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:09,549 INFO L85 PathProgramCache]: Analyzing trace with hash 406165652, now seen corresponding path program 1 times [2023-11-23 21:18:09,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:09,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236492431] [2023-11-23 21:18:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:09,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:18:09,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:09,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236492431] [2023-11-23 21:18:09,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236492431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:09,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:09,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:09,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003566713] [2023-11-23 21:18:09,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:09,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:18:09,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:18:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:18:09,816 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:18:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:09,880 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2023-11-23 21:18:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:18:09,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-11-23 21:18:09,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:09,883 INFO L225 Difference]: With dead ends: 32 [2023-11-23 21:18:09,883 INFO L226 Difference]: Without dead ends: 31 [2023-11-23 21:18:09,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:09,885 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 5 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:09,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 78 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:18:09,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-23 21:18:09,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-23 21:18:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.368421052631579) internal successors, (26), 25 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:18:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-11-23 21:18:09,895 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 9 [2023-11-23 21:18:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:09,895 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-11-23 21:18:09,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:18:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-23 21:18:09,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:18:09,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:09,897 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:09,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:18:09,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:09,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:09,899 INFO L85 PathProgramCache]: Analyzing trace with hash 893890391, now seen corresponding path program 1 times [2023-11-23 21:18:09,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:09,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71182317] [2023-11-23 21:18:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:09,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:18:09,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:09,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71182317] [2023-11-23 21:18:09,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71182317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:09,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:09,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:09,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076290050] [2023-11-23 21:18:09,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:09,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:09,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:09,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:09,993 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:18:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:10,038 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2023-11-23 21:18:10,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:10,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-23 21:18:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:10,040 INFO L225 Difference]: With dead ends: 51 [2023-11-23 21:18:10,041 INFO L226 Difference]: Without dead ends: 30 [2023-11-23 21:18:10,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:18:10,043 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:10,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 28 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:18:10,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-23 21:18:10,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-23 21:18:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 24 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:18:10,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-11-23 21:18:10,051 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 13 [2023-11-23 21:18:10,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:10,052 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-23 21:18:10,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:18:10,052 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-23 21:18:10,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 21:18:10,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:10,053 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:10,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:18:10,054 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:10,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:10,055 INFO L85 PathProgramCache]: Analyzing trace with hash -602188784, now seen corresponding path program 1 times [2023-11-23 21:18:10,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:10,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756279500] [2023-11-23 21:18:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:10,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:18:10,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:10,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756279500] [2023-11-23 21:18:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756279500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:10,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:10,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:18:10,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085048140] [2023-11-23 21:18:10,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:10,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:10,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:10,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:10,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:10,290 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:18:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:10,335 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2023-11-23 21:18:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-23 21:18:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:10,337 INFO L225 Difference]: With dead ends: 30 [2023-11-23 21:18:10,337 INFO L226 Difference]: Without dead ends: 29 [2023-11-23 21:18:10,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:18:10,339 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 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 21:18:10,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:18:10,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-23 21:18:10,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-23 21:18:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.263157894736842) internal successors, (24), 23 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:18:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-23 21:18:10,346 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 14 [2023-11-23 21:18:10,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:10,347 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-23 21:18:10,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:18:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-23 21:18:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:18:10,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:10,349 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:10,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:18:10,349 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:10,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1487477825, now seen corresponding path program 1 times [2023-11-23 21:18:10,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:10,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211201570] [2023-11-23 21:18:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:10,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:18:10,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:10,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211201570] [2023-11-23 21:18:10,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211201570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:10,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:10,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:10,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028535673] [2023-11-23 21:18:10,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:10,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:18:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:10,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:18:10,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:18:10,469 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:18:10,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:10,523 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2023-11-23 21:18:10,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:18:10,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-23 21:18:10,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:10,525 INFO L225 Difference]: With dead ends: 39 [2023-11-23 21:18:10,525 INFO L226 Difference]: Without dead ends: 33 [2023-11-23 21:18:10,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:18:10,526 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:10,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:18:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-23 21:18:10,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-23 21:18:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 25 states have internal predecessors, (25), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:18:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2023-11-23 21:18:10,535 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 15 [2023-11-23 21:18:10,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:10,535 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2023-11-23 21:18:10,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:18:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-11-23 21:18:10,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:18:10,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:10,537 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:10,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:18:10,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:10,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:10,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1487982894, now seen corresponding path program 1 times [2023-11-23 21:18:10,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:10,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318672106] [2023-11-23 21:18:10,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:10,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:18:10,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:10,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318672106] [2023-11-23 21:18:10,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318672106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:10,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:10,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:10,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433525204] [2023-11-23 21:18:10,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:10,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:18:10,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:18:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:18:10,915 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:18:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:10,994 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-11-23 21:18:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:18:11,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-23 21:18:11,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:11,003 INFO L225 Difference]: With dead ends: 33 [2023-11-23 21:18:11,003 INFO L226 Difference]: Without dead ends: 32 [2023-11-23 21:18:11,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:11,005 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:11,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:18:11,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-23 21:18:11,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-23 21:18:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 24 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:18:11,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-23 21:18:11,013 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 15 [2023-11-23 21:18:11,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:11,013 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-23 21:18:11,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:18:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-23 21:18:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:18:11,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:11,015 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:11,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:18:11,016 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:11,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash -140649086, now seen corresponding path program 1 times [2023-11-23 21:18:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:11,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169716191] [2023-11-23 21:18:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:18:11,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169716191] [2023-11-23 21:18:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169716191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:11,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:11,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:11,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356277537] [2023-11-23 21:18:11,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:11,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:18:11,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:11,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:18:11,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:18:11,200 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:18:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:11,258 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-23 21:18:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:18:11,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 19 [2023-11-23 21:18:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:11,260 INFO L225 Difference]: With dead ends: 32 [2023-11-23 21:18:11,261 INFO L226 Difference]: Without dead ends: 31 [2023-11-23 21:18:11,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:11,262 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:11,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 66 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:18:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-23 21:18:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-23 21:18:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 23 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:18:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-11-23 21:18:11,270 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 19 [2023-11-23 21:18:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:11,270 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-11-23 21:18:11,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:18:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-23 21:18:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:18:11,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:11,272 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:11,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:18:11,272 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:18:11,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash -65154125, now seen corresponding path program 1 times [2023-11-23 21:18:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:11,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570099039] [2023-11-23 21:18:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:11,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:18:11,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:11,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570099039] [2023-11-23 21:18:11,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570099039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:11,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:11,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:11,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871919260] [2023-11-23 21:18:11,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:11,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:18:11,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:11,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:18:11,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:18:11,480 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:18:11,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:11,535 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-11-23 21:18:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:18:11,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-11-23 21:18:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:11,536 INFO L225 Difference]: With dead ends: 31 [2023-11-23 21:18:11,536 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:18:11,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:18:11,538 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:11,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:18:11,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:18:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:18:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:18:11,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2023-11-23 21:18:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:11,540 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:18:11,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:18:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:18:11,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:18:11,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-23 21:18:11,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-23 21:18:11,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-23 21:18:11,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-23 21:18:11,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-23 21:18:11,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-23 21:18:11,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:18:11,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:18:11,602 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-23 21:18:11,602 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-23 21:18:11,602 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-23 21:18:11,602 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-23 21:18:11,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1621) no Hoare annotation was computed. [2023-11-23 21:18:11,603 INFO L899 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2023-11-23 21:18:11,603 INFO L899 garLoopResultBuilder]: For program point L1621-1(line 1621) no Hoare annotation was computed. [2023-11-23 21:18:11,603 INFO L902 garLoopResultBuilder]: At program point L1638(line 1638) the Hoare annotation is: true [2023-11-23 21:18:11,603 INFO L899 garLoopResultBuilder]: For program point L1605(line 1605) no Hoare annotation was computed. [2023-11-23 21:18:11,603 INFO L899 garLoopResultBuilder]: For program point L1638-1(line 1638) no Hoare annotation was computed. [2023-11-23 21:18:11,603 INFO L899 garLoopResultBuilder]: For program point L1605-1(line 1605) no Hoare annotation was computed. [2023-11-23 21:18:11,604 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1605) no Hoare annotation was computed. [2023-11-23 21:18:11,604 INFO L899 garLoopResultBuilder]: For program point L1597(lines 1597 1613) no Hoare annotation was computed. [2023-11-23 21:18:11,604 INFO L902 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: true [2023-11-23 21:18:11,604 INFO L899 garLoopResultBuilder]: For program point L1589-1(line 1589) no Hoare annotation was computed. [2023-11-23 21:18:11,604 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1605) no Hoare annotation was computed. [2023-11-23 21:18:11,604 INFO L899 garLoopResultBuilder]: For program point L1631(lines 1631 1641) no Hoare annotation was computed. [2023-11-23 21:18:11,605 INFO L895 garLoopResultBuilder]: At program point L1623(line 1623) the Hoare annotation is: (and (= ~CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G2Global~0 1) (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G2Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G1Global~0 0)) [2023-11-23 21:18:11,605 INFO L899 garLoopResultBuilder]: For program point L1623-1(line 1623) no Hoare annotation was computed. [2023-11-23 21:18:11,605 INFO L899 garLoopResultBuilder]: For program point L1615(lines 1615 1630) no Hoare annotation was computed. [2023-11-23 21:18:11,605 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:18:11,605 INFO L895 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G1Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G1Global~0 0)) [2023-11-23 21:18:11,605 INFO L899 garLoopResultBuilder]: For program point L1607-1(line 1607) no Hoare annotation was computed. [2023-11-23 21:18:11,606 INFO L895 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: false [2023-11-23 21:18:11,606 INFO L899 garLoopResultBuilder]: For program point L1633(lines 1633 1640) no Hoare annotation was computed. [2023-11-23 21:18:11,606 INFO L899 garLoopResultBuilder]: For program point L1617(lines 1617 1629) no Hoare annotation was computed. [2023-11-23 21:18:11,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1636) no Hoare annotation was computed. [2023-11-23 21:18:11,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:18:11,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1636) no Hoare annotation was computed. [2023-11-23 21:18:11,606 INFO L895 garLoopResultBuilder]: At program point L1627(line 1627) the Hoare annotation is: (and (= ~CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G2Global~0 1) (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G2Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G1Global~0 0)) [2023-11-23 21:18:11,607 INFO L899 garLoopResultBuilder]: For program point L1619(lines 1619 1628) no Hoare annotation was computed. [2023-11-23 21:18:11,607 INFO L895 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G1Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G1Global~0 0)) [2023-11-23 21:18:11,607 INFO L899 garLoopResultBuilder]: For program point L1611-1(lines 1595 1614) no Hoare annotation was computed. [2023-11-23 21:18:11,607 INFO L899 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2023-11-23 21:18:11,607 INFO L899 garLoopResultBuilder]: For program point L1603(lines 1603 1612) no Hoare annotation was computed. [2023-11-23 21:18:11,607 INFO L899 garLoopResultBuilder]: For program point L1636-1(line 1636) no Hoare annotation was computed. [2023-11-23 21:18:11,608 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1621) no Hoare annotation was computed. [2023-11-23 21:18:11,608 INFO L895 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: (= ~CWE191_Integer_Underflow__int_rand_postdec_22_goodB2G1Global~0 0) [2023-11-23 21:18:11,608 INFO L899 garLoopResultBuilder]: For program point L1587-1(line 1587) no Hoare annotation was computed. [2023-11-23 21:18:11,611 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:18:11,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:18:11,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:18:11 BoogieIcfgContainer [2023-11-23 21:18:11,619 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:18:11,620 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:18:11,620 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:18:11,620 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:18:11,621 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:08" (3/4) ... [2023-11-23 21:18:11,623 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:18:11,627 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 21:18:11,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 21:18:11,637 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2023-11-23 21:18:11,638 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-23 21:18:11,639 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:18:11,640 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:18:11,772 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:18:11,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:18:11,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:18:11,774 INFO L158 Benchmark]: Toolchain (without parser) took 6255.62ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 116.1MB in the beginning and 152.6MB in the end (delta: -36.6MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-23 21:18:11,774 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:18:11,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1568.65ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 115.7MB in the beginning and 174.0MB in the end (delta: -58.3MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2023-11-23 21:18:11,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.67ms. Allocated memory is still 230.7MB. Free memory was 174.0MB in the beginning and 170.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:18:11,776 INFO L158 Benchmark]: Boogie Preprocessor took 81.05ms. Allocated memory is still 230.7MB. Free memory was 170.7MB in the beginning and 168.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:18:11,776 INFO L158 Benchmark]: RCFGBuilder took 1202.97ms. Allocated memory is still 230.7MB. Free memory was 168.7MB in the beginning and 189.5MB in the end (delta: -20.8MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2023-11-23 21:18:11,776 INFO L158 Benchmark]: TraceAbstraction took 3109.82ms. Allocated memory is still 230.7MB. Free memory was 189.5MB in the beginning and 160.0MB in the end (delta: 29.5MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-11-23 21:18:11,777 INFO L158 Benchmark]: Witness Printer took 153.23ms. Allocated memory is still 230.7MB. Free memory was 160.0MB in the beginning and 152.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:18:11,779 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1568.65ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 115.7MB in the beginning and 174.0MB in the end (delta: -58.3MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.67ms. Allocated memory is still 230.7MB. Free memory was 174.0MB in the beginning and 170.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.05ms. Allocated memory is still 230.7MB. Free memory was 170.7MB in the beginning and 168.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1202.97ms. Allocated memory is still 230.7MB. Free memory was 168.7MB in the beginning and 189.5MB in the end (delta: -20.8MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3109.82ms. Allocated memory is still 230.7MB. Free memory was 189.5MB in the beginning and 160.0MB in the end (delta: 29.5MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 153.23ms. Allocated memory is still 230.7MB. Free memory was 160.0MB in the beginning and 152.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: 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, 39 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 460 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 210 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 10 LocationsWithAnnotation, 18 PreInvPairs, 20 NumberOfFragments, 42 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 21:18:11,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481899a-8b3a-46a9-8df0-cc4719be301f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE