./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ --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 7868aeaa5817427d0a3828dfefb1034afcc09d6e3c75f7f026172c6fd79cbf43 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:17,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:17,372 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 05:12:17,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:17,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:17,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:17,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:17,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:17,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:17,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:17,415 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:17,415 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:17,416 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:17,417 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:12:17,418 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:17,418 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:17,419 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:12:17,420 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:12:17,420 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:17,421 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:12:17,422 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:12:17,423 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:12:17,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:17,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:12:17,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:12:17,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:17,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:12:17,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:17,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:12:17,428 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:12:17,428 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:12:17,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:12:17,429 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:17,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:17,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:17,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:17,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:17,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:17,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:12:17,432 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:12:17,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:12:17,434 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:12:17,434 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:17,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:17,435 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_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7868aeaa5817427d0a3828dfefb1034afcc09d6e3c75f7f026172c6fd79cbf43 [2023-11-19 05:12:17,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:17,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:17,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:17,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:17,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:17,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i [2023-11-19 05:12:20,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:21,343 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:21,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i [2023-11-19 05:12:21,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/data/260dd45a5/6d8bb10bc8824ed490fa7adba1f934f0/FLAGd9193723e [2023-11-19 05:12:21,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/data/260dd45a5/6d8bb10bc8824ed490fa7adba1f934f0 [2023-11-19 05:12:21,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:21,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:21,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:21,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:21,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:21,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b50618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:21, skipping insertion in model container [2023-11-19 05:12:21,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:21" (1/1) ... [2023-11-19 05:12:21,480 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:21,966 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:12:22,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:22,652 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:22,678 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:12:22,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:22,914 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:12:22,914 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:12:22,914 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:12:22,914 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:12:22,915 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:12:22,923 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:22,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22 WrapperNode [2023-11-19 05:12:22,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:22,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:22,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:22,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:22,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:22,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:22,992 INFO L138 Inliner]: procedures = 501, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 102 [2023-11-19 05:12:22,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:22,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:22,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:22,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:23,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:23,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:23,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:23,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:23,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (1/1) ... [2023-11-19 05:12:23,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:23,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:23,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:23,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 05:12:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 05:12:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 05:12:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 05:12:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:12:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:12:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:23,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:12:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 05:12:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:12:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:12:23,309 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:23,311 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:23,544 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:23,648 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:23,652 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 05:12:23,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:23 BoogieIcfgContainer [2023-11-19 05:12:23,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:23,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:23,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:23,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:23,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:21" (1/3) ... [2023-11-19 05:12:23,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa1ff1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:23, skipping insertion in model container [2023-11-19 05:12:23,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:22" (2/3) ... [2023-11-19 05:12:23,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa1ff1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:23, skipping insertion in model container [2023-11-19 05:12:23,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:23" (3/3) ... [2023-11-19 05:12:23,678 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_17_good.i [2023-11-19 05:12:23,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:23,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-19 05:12:23,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:23,765 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;@48fb58a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:23,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-19 05:12:23,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 25 states have (on average 1.68) internal successors, (42), 38 states have internal predecessors, (42), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:12:23,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:12:23,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:23,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:23,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:23,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:23,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1140397230, now seen corresponding path program 1 times [2023-11-19 05:12:23,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:23,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377823157] [2023-11-19 05:12:23,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:23,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:24,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:24,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377823157] [2023-11-19 05:12:24,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377823157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:24,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:24,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:24,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407902630] [2023-11-19 05:12:24,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:24,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:24,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:24,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:24,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:24,322 INFO L87 Difference]: Start difference. First operand has 45 states, 25 states have (on average 1.68) internal successors, (42), 38 states have internal predecessors, (42), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:24,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:24,447 INFO L93 Difference]: Finished difference Result 87 states and 100 transitions. [2023-11-19 05:12:24,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:24,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 7 [2023-11-19 05:12:24,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:24,459 INFO L225 Difference]: With dead ends: 87 [2023-11-19 05:12:24,459 INFO L226 Difference]: Without dead ends: 45 [2023-11-19 05:12:24,466 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 [2023-11-19 05:12:24,478 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 3 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:24,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 114 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:12:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-19 05:12:24,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-19 05:12:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 39 states have internal predecessors, (43), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2023-11-19 05:12:24,533 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 7 [2023-11-19 05:12:24,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:24,535 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2023-11-19 05:12:24,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-11-19 05:12:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 05:12:24,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:24,537 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:24,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:12:24,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:24,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:24,539 INFO L85 PathProgramCache]: Analyzing trace with hash 382628231, now seen corresponding path program 1 times [2023-11-19 05:12:24,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:24,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394487366] [2023-11-19 05:12:24,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:24,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:24,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:24,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394487366] [2023-11-19 05:12:24,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394487366] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:24,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638778208] [2023-11-19 05:12:24,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:24,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:24,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:24,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:12:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:24,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:12:24,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:24,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:24,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:24,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638778208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:24,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:24,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-19 05:12:24,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939932324] [2023-11-19 05:12:24,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:24,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:24,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:24,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:12:24,997 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:25,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:25,092 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2023-11-19 05:12:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:25,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-19 05:12:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:25,094 INFO L225 Difference]: With dead ends: 80 [2023-11-19 05:12:25,095 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 05:12:25,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:12:25,098 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:25,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 88 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 05:12:25,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 05:12:25,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.52) internal successors, (38), 35 states have internal predecessors, (38), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2023-11-19 05:12:25,110 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 10 [2023-11-19 05:12:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:25,111 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2023-11-19 05:12:25,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2023-11-19 05:12:25,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:12:25,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:25,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:25,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:25,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:25,321 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:25,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:25,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1661024599, now seen corresponding path program 1 times [2023-11-19 05:12:25,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:25,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282278238] [2023-11-19 05:12:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:25,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:12:25,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:25,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282278238] [2023-11-19 05:12:25,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282278238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:25,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:25,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021099014] [2023-11-19 05:12:25,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:25,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:25,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:25,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:25,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:25,512 INFO L87 Difference]: Start difference. First operand 41 states and 46 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:25,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:25,576 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-11-19 05:12:25,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:25,577 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, (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 12 [2023-11-19 05:12:25,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:25,580 INFO L225 Difference]: With dead ends: 41 [2023-11-19 05:12:25,580 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 05:12:25,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:25,584 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:25,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 90 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:25,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 05:12:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 05:12:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.48) internal successors, (37), 34 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2023-11-19 05:12:25,608 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 12 [2023-11-19 05:12:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2023-11-19 05:12:25,609 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-19 05:12:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:12:25,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:25,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:25,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:12:25,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:25,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:25,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1660922888, now seen corresponding path program 1 times [2023-11-19 05:12:25,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:25,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556110071] [2023-11-19 05:12:25,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:25,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:12:25,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:25,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556110071] [2023-11-19 05:12:25,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556110071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:25,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:25,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:25,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997832864] [2023-11-19 05:12:25,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:25,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:25,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:25,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:25,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:25,731 INFO L87 Difference]: Start difference. First operand 40 states and 45 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:25,791 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2023-11-19 05:12:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:25,792 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, (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 12 [2023-11-19 05:12:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:25,796 INFO L225 Difference]: With dead ends: 71 [2023-11-19 05:12:25,797 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 05:12:25,797 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 [2023-11-19 05:12:25,806 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 11 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:25,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 66 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:25,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 05:12:25,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2023-11-19 05:12:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2023-11-19 05:12:25,824 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 12 [2023-11-19 05:12:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:25,825 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2023-11-19 05:12:25,825 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:25,825 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2023-11-19 05:12:25,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 05:12:25,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:25,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:25,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:12:25,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:25,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:25,830 INFO L85 PathProgramCache]: Analyzing trace with hash 47845060, now seen corresponding path program 1 times [2023-11-19 05:12:25,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:25,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524573544] [2023-11-19 05:12:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:25,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:12:26,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:26,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524573544] [2023-11-19 05:12:26,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524573544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:26,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:26,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:12:26,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710870557] [2023-11-19 05:12:26,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:26,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:26,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:26,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:12:26,131 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:26,198 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-11-19 05:12:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:26,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 13 [2023-11-19 05:12:26,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:26,200 INFO L225 Difference]: With dead ends: 41 [2023-11-19 05:12:26,200 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 05:12:26,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:12:26,201 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:26,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 84 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:26,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 05:12:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 05:12:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 34 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2023-11-19 05:12:26,210 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 13 [2023-11-19 05:12:26,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:26,210 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2023-11-19 05:12:26,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:12:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-19 05:12:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:12:26,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:26,212 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:26,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:12:26,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:26,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:26,214 INFO L85 PathProgramCache]: Analyzing trace with hash -277682502, now seen corresponding path program 1 times [2023-11-19 05:12:26,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:26,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565851889] [2023-11-19 05:12:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 05:12:26,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565851889] [2023-11-19 05:12:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565851889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:26,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:26,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107246113] [2023-11-19 05:12:26,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:26,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:26,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:26,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:26,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:26,308 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-19 05:12:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:26,375 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2023-11-19 05:12:26,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:26,376 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), 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 16 [2023-11-19 05:12:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:26,380 INFO L225 Difference]: With dead ends: 51 [2023-11-19 05:12:26,380 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 05:12:26,381 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 [2023-11-19 05:12:26,383 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:26,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:26,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 05:12:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 05:12:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 42 states have internal predecessors, (45), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 05:12:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2023-11-19 05:12:26,407 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 16 [2023-11-19 05:12:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:26,407 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2023-11-19 05:12:26,408 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), 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) [2023-11-19 05:12:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2023-11-19 05:12:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 05:12:26,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:26,410 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:26,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:12:26,411 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:26,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:26,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1711827047, now seen corresponding path program 1 times [2023-11-19 05:12:26,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:26,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419802247] [2023-11-19 05:12:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:12:26,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:26,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419802247] [2023-11-19 05:12:26,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419802247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:26,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:26,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:26,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974830704] [2023-11-19 05:12:26,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:26,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:26,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:26,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:26,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:26,491 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:26,539 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2023-11-19 05:12:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:26,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 20 [2023-11-19 05:12:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:26,541 INFO L225 Difference]: With dead ends: 67 [2023-11-19 05:12:26,541 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 05:12:26,541 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 [2023-11-19 05:12:26,542 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:26,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 98 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:26,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 05:12:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-19 05:12:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 45 states have internal predecessors, (48), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 05:12:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2023-11-19 05:12:26,552 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 20 [2023-11-19 05:12:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:26,552 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2023-11-19 05:12:26,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:26,553 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-11-19 05:12:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 05:12:26,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:26,554 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:26,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:12:26,555 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:26,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:26,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1374515675, now seen corresponding path program 1 times [2023-11-19 05:12:26,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:26,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972020526] [2023-11-19 05:12:26,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 05:12:26,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:26,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972020526] [2023-11-19 05:12:26,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972020526] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:26,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382011366] [2023-11-19 05:12:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:26,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:26,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:26,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:26,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:12:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:26,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:12:26,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 05:12:26,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:26,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382011366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:26,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:26,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-19 05:12:26,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675096041] [2023-11-19 05:12:26,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:26,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:26,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:26,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:26,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:12:26,813 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:12:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:26,865 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2023-11-19 05:12:26,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:26,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2023-11-19 05:12:26,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:26,866 INFO L225 Difference]: With dead ends: 76 [2023-11-19 05:12:26,867 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 05:12:26,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:12:26,868 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:26,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 104 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:26,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 05:12:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 05:12:26,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 35 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2023-11-19 05:12:26,874 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 24 [2023-11-19 05:12:26,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:26,875 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2023-11-19 05:12:26,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 05:12:26,875 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2023-11-19 05:12:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 05:12:26,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:26,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:26,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:27,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:27,098 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:27,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:27,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1402224381, now seen corresponding path program 1 times [2023-11-19 05:12:27,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:27,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687828888] [2023-11-19 05:12:27,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:27,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:12:27,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:27,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687828888] [2023-11-19 05:12:27,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687828888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:27,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999670985] [2023-11-19 05:12:27,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:27,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:27,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:27,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:27,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 05:12:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:27,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:12:27,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:12:27,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:27,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999670985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:27,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:27,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-19 05:12:27,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550877413] [2023-11-19 05:12:27,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:27,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:27,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:27,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:27,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:12:27,354 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:27,403 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2023-11-19 05:12:27,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:27,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 23 [2023-11-19 05:12:27,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:27,405 INFO L225 Difference]: With dead ends: 55 [2023-11-19 05:12:27,406 INFO L226 Difference]: Without dead ends: 37 [2023-11-19 05:12:27,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:12:27,409 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:27,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 96 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-19 05:12:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-19 05:12:27,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 31 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:27,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2023-11-19 05:12:27,430 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 23 [2023-11-19 05:12:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:27,432 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2023-11-19 05:12:27,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2023-11-19 05:12:27,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 05:12:27,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:27,435 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:27,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:27,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:27,646 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:27,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:27,646 INFO L85 PathProgramCache]: Analyzing trace with hash 519287251, now seen corresponding path program 1 times [2023-11-19 05:12:27,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:27,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256736717] [2023-11-19 05:12:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:27,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:27,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:12:27,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:27,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256736717] [2023-11-19 05:12:27,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256736717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:27,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:27,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:12:27,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196376883] [2023-11-19 05:12:27,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:27,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:27,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:27,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:27,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:27,705 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:27,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:27,733 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2023-11-19 05:12:27,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:27,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 24 [2023-11-19 05:12:27,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:27,735 INFO L225 Difference]: With dead ends: 37 [2023-11-19 05:12:27,735 INFO L226 Difference]: Without dead ends: 36 [2023-11-19 05:12:27,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:27,736 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:27,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:27,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-19 05:12:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-19 05:12:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 30 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2023-11-19 05:12:27,742 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 24 [2023-11-19 05:12:27,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:27,743 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2023-11-19 05:12:27,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2023-11-19 05:12:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 05:12:27,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:27,745 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:27,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 05:12:27,745 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:27,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:27,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1081964279, now seen corresponding path program 1 times [2023-11-19 05:12:27,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:27,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534743533] [2023-11-19 05:12:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:27,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:12:27,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:27,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534743533] [2023-11-19 05:12:27,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534743533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:27,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:27,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:12:27,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940030102] [2023-11-19 05:12:27,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:27,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:27,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:27,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:27,804 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:27,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:27,831 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2023-11-19 05:12:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 25 [2023-11-19 05:12:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:27,833 INFO L225 Difference]: With dead ends: 36 [2023-11-19 05:12:27,833 INFO L226 Difference]: Without dead ends: 35 [2023-11-19 05:12:27,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:27,834 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:27,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 46 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-19 05:12:27,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-19 05:12:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 29 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 05:12:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2023-11-19 05:12:27,841 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 25 [2023-11-19 05:12:27,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:27,841 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-11-19 05:12:27,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:12:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2023-11-19 05:12:27,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 05:12:27,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:27,843 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:27,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 05:12:27,844 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:27,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:27,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2121218579, now seen corresponding path program 1 times [2023-11-19 05:12:27,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:27,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141744590] [2023-11-19 05:12:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:27,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 05:12:27,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141744590] [2023-11-19 05:12:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141744590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:27,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344118169] [2023-11-19 05:12:27,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:12:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:12:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:12:27,923 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:12:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:27,971 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2023-11-19 05:12:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:12:27,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-19 05:12:27,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:27,972 INFO L225 Difference]: With dead ends: 44 [2023-11-19 05:12:27,973 INFO L226 Difference]: Without dead ends: 42 [2023-11-19 05:12:27,973 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 [2023-11-19 05:12:27,974 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:27,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 77 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-19 05:12:27,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-19 05:12:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 35 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:12:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2023-11-19 05:12:27,981 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 30 [2023-11-19 05:12:27,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:27,982 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-11-19 05:12:27,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:12:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2023-11-19 05:12:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 05:12:27,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:27,984 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:27,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 05:12:27,984 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-19 05:12:27,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:27,985 INFO L85 PathProgramCache]: Analyzing trace with hash 590091539, now seen corresponding path program 1 times [2023-11-19 05:12:27,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:27,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408959389] [2023-11-19 05:12:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:27,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:28,102 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 05:12:28,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:28,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408959389] [2023-11-19 05:12:28,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408959389] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:12:28,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668350766] [2023-11-19 05:12:28,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:28,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:28,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:28,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:28,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:12:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:28,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:12:28,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 05:12:28,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:28,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668350766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:28,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:12:28,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-19 05:12:28,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011303727] [2023-11-19 05:12:28,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:28,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:12:28,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:12:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:12:28,298 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 05:12:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:28,348 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2023-11-19 05:12:28,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:12:28,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2023-11-19 05:12:28,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:28,350 INFO L225 Difference]: With dead ends: 45 [2023-11-19 05:12:28,350 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:12:28,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:12:28,351 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:28,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 71 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:28,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:12:28,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:12:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:12:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:12:28,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2023-11-19 05:12:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:28,354 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:12:28,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 05:12:28,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:12:28,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:12:28,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-11-19 05:12:28,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2023-11-19 05:12:28,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2023-11-19 05:12:28,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2023-11-19 05:12:28,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2023-11-19 05:12:28,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2023-11-19 05:12:28,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2023-11-19 05:12:28,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2023-11-19 05:12:28,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-11-19 05:12:28,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-11-19 05:12:28,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-11-19 05:12:28,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-11-19 05:12:28,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:28,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:28,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:12:28,689 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-19 05:12:28,690 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-19 05:12:28,690 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-19 05:12:28,690 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-19 05:12:28,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2023-11-19 05:12:28,690 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1567) no Hoare annotation was computed. [2023-11-19 05:12:28,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1579) no Hoare annotation was computed. [2023-11-19 05:12:28,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1575) no Hoare annotation was computed. [2023-11-19 05:12:28,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2023-11-19 05:12:28,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2023-11-19 05:12:28,692 INFO L902 garLoopResultBuilder]: At program point L1597(line 1597) the Hoare annotation is: true [2023-11-19 05:12:28,692 INFO L899 garLoopResultBuilder]: For program point L1597-1(line 1597) no Hoare annotation was computed. [2023-11-19 05:12:28,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2023-11-19 05:12:28,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2023-11-19 05:12:28,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:12:28,693 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2023-11-19 05:12:28,693 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2023-11-19 05:12:28,693 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2023-11-19 05:12:28,693 INFO L899 garLoopResultBuilder]: For program point L1557-2(line 1557) no Hoare annotation was computed. [2023-11-19 05:12:28,693 INFO L899 garLoopResultBuilder]: For program point L1557-3(line 1557) no Hoare annotation was computed. [2023-11-19 05:12:28,694 INFO L895 garLoopResultBuilder]: At program point L1557-4(lines 1557 1568) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647))) (or (and .cse0 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_goodB2G_~k~0#1| 0) .cse1))) [2023-11-19 05:12:28,694 INFO L899 garLoopResultBuilder]: For program point L1553-3(line 1553) no Hoare annotation was computed. [2023-11-19 05:12:28,694 INFO L899 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2023-11-19 05:12:28,694 INFO L899 garLoopResultBuilder]: For program point L1553-4(line 1553) no Hoare annotation was computed. [2023-11-19 05:12:28,695 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2023-11-19 05:12:28,695 INFO L895 garLoopResultBuilder]: At program point L1553-5(lines 1553 1556) the Hoare annotation is: (let ((.cse0 (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647))) (or (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) .cse0) (and (= |ULTIMATE.start_goodB2G_~i~1#1| 0) .cse0))) [2023-11-19 05:12:28,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2023-11-19 05:12:28,695 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:12:28,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2023-11-19 05:12:28,696 INFO L895 garLoopResultBuilder]: At program point L1566(line 1566) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647)) [2023-11-19 05:12:28,696 INFO L899 garLoopResultBuilder]: For program point L1566-1(lines 1557 1568) no Hoare annotation was computed. [2023-11-19 05:12:28,696 INFO L902 garLoopResultBuilder]: At program point L1595(line 1595) the Hoare annotation is: true [2023-11-19 05:12:28,696 INFO L899 garLoopResultBuilder]: For program point L1595-1(line 1595) no Hoare annotation was computed. [2023-11-19 05:12:28,697 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647)) [2023-11-19 05:12:28,697 INFO L899 garLoopResultBuilder]: For program point L1562-1(line 1562) no Hoare annotation was computed. [2023-11-19 05:12:28,697 INFO L895 garLoopResultBuilder]: At program point L1583(line 1583) the Hoare annotation is: (and (= |ULTIMATE.start_goodG2B_~j~0#1| 0) (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) (= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0)) [2023-11-19 05:12:28,697 INFO L899 garLoopResultBuilder]: For program point L1583-1(line 1583) no Hoare annotation was computed. [2023-11-19 05:12:28,698 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1579) no Hoare annotation was computed. [2023-11-19 05:12:28,698 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1575) no Hoare annotation was computed. [2023-11-19 05:12:28,698 INFO L899 garLoopResultBuilder]: For program point L1579-3(line 1579) no Hoare annotation was computed. [2023-11-19 05:12:28,698 INFO L899 garLoopResultBuilder]: For program point L1579-4(line 1579) no Hoare annotation was computed. [2023-11-19 05:12:28,699 INFO L895 garLoopResultBuilder]: At program point L1579-5(lines 1579 1585) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|)) (.cse1 (= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0))) (or (and (<= 1 |ULTIMATE.start_goodG2B_~j~0#1|) .cse0 .cse1) (and (= |ULTIMATE.start_goodG2B_~j~0#1| 0) .cse0 .cse1))) [2023-11-19 05:12:28,699 INFO L899 garLoopResultBuilder]: For program point L1575-3(line 1575) no Hoare annotation was computed. [2023-11-19 05:12:28,699 INFO L899 garLoopResultBuilder]: For program point L1575-4(line 1575) no Hoare annotation was computed. [2023-11-19 05:12:28,699 INFO L895 garLoopResultBuilder]: At program point L1575-5(lines 1575 1578) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2))) (or (and (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) (= .cse0 0)) (and (= |ULTIMATE.start_goodG2B_~h~0#1| 0) (<= 0 .cse0)))) [2023-11-19 05:12:28,703 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:28,705 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:12:28,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated [2023-11-19 05:12:28,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated [2023-11-19 05:12:28,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated [2023-11-19 05:12:28,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated [2023-11-19 05:12:28,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:12:28 BoogieIcfgContainer [2023-11-19 05:12:28,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:12:28,726 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:12:28,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:12:28,727 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:12:28,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:23" (3/4) ... [2023-11-19 05:12:28,729 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:12:28,733 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 05:12:28,733 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 05:12:28,740 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-19 05:12:28,741 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 05:12:28,741 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 05:12:28,741 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:12:28,870 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:12:28,871 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:12:28,871 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:12:28,872 INFO L158 Benchmark]: Toolchain (without parser) took 7472.62ms. Allocated memory was 148.9MB in the beginning and 213.9MB in the end (delta: 65.0MB). Free memory was 99.8MB in the beginning and 146.3MB in the end (delta: -46.5MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-19 05:12:28,873 INFO L158 Benchmark]: CDTParser took 1.41ms. Allocated memory is still 148.9MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:28,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1523.32ms. Allocated memory was 148.9MB in the beginning and 213.9MB in the end (delta: 65.0MB). Free memory was 99.4MB in the beginning and 162.8MB in the end (delta: -63.4MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2023-11-19 05:12:28,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.39ms. Allocated memory is still 213.9MB. Free memory was 162.8MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:28,874 INFO L158 Benchmark]: Boogie Preprocessor took 36.45ms. Allocated memory is still 213.9MB. Free memory was 160.8MB in the beginning and 158.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:28,875 INFO L158 Benchmark]: RCFGBuilder took 629.32ms. Allocated memory is still 213.9MB. Free memory was 158.7MB in the beginning and 140.8MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:12:28,875 INFO L158 Benchmark]: TraceAbstraction took 5059.85ms. Allocated memory is still 213.9MB. Free memory was 139.8MB in the beginning and 151.5MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:28,876 INFO L158 Benchmark]: Witness Printer took 145.20ms. Allocated memory is still 213.9MB. Free memory was 151.5MB in the beginning and 146.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:12:28,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41ms. Allocated memory is still 148.9MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1523.32ms. Allocated memory was 148.9MB in the beginning and 213.9MB in the end (delta: 65.0MB). Free memory was 99.4MB in the beginning and 162.8MB in the end (delta: -63.4MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.39ms. Allocated memory is still 213.9MB. Free memory was 162.8MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.45ms. Allocated memory is still 213.9MB. Free memory was 160.8MB in the beginning and 158.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 629.32ms. Allocated memory is still 213.9MB. Free memory was 158.7MB in the beginning and 140.8MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5059.85ms. Allocated memory is still 213.9MB. Free memory was 139.8MB in the beginning and 151.5MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 145.20ms. Allocated memory is still 213.9MB. Free memory was 151.5MB in the beginning and 146.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#data~0!base][~#data~0!offset] could not be translated * 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: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1575]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1575]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1579]: 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, 45 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 1070 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 675 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 395 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=7, InterpolantAutomatonStates: 54, 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, 13 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 28 PreInvPairs, 40 NumberOfFragments, 140 HoareAnnotationTreeSize, 28 FomulaSimplifications, 57 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 550 SizeOfPredicates, 4 NumberOfNonLiveVariables, 654 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 87/91 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 12 specifications checked. All of them hold - InvariantResult [Line: 1575]: Loop Invariant Derived loop invariant: (((1 <= h) && ((data + 2) == 0)) || ((h == 0) && (0 <= (data + 2)))) - InvariantResult [Line: 1579]: Loop Invariant Derived loop invariant: ((((1 <= j) && (1 <= h)) && ((data + 2) == 0)) || (((j == 0) && (1 <= h)) && ((data + 2) == 0))) - InvariantResult [Line: 1553]: Loop Invariant Derived loop invariant: ((1 <= i) || (i == 0)) - InvariantResult [Line: 1557]: Loop Invariant Derived loop invariant: (((1 <= i) && (1 <= k)) || ((1 <= i) && (k == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-19 05:12:28,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a3c9b8c-d771-422c-af70-c88d51c21ce7/bin/utaipan-verify-t7M7D8N6sZ/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