./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_61_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_61_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91 --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 e3e17307a602b93014cabc45bee80e86801465de6430827833aab8b38f1e49f1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:18:50,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:18:50,990 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:18:51,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:18:51,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:18:51,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:18:51,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:18:51,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:18:51,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:18:51,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:18:51,052 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:18:51,052 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:18:51,053 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:18:51,054 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:18:51,055 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:18:51,055 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:18:51,056 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:18:51,056 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:18:51,056 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:18:51,057 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:18:51,057 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:18:51,058 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:18:51,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:18:51,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:18:51,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:18:51,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:18:51,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:18:51,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:18:51,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:18:51,062 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:18:51,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:18:51,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:18:51,064 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:18:51,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:18:51,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:18:51,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:18:51,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:51,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:18:51,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:18:51,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:18:51,066 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:18:51,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:18:51,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:18:51,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:18:51,067 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:18:51,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:18:51,068 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_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3e17307a602b93014cabc45bee80e86801465de6430827833aab8b38f1e49f1 [2023-11-24 23:18:51,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:18:51,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:18:51,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:18:51,473 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:18:51,475 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:18:51,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_61_good.i [2023-11-24 23:18:54,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:18:55,202 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:18:55,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_61_good.i [2023-11-24 23:18:55,234 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/data/309c89576/4063455d69d14686999276e61dcf2e4d/FLAG1633dab49 [2023-11-24 23:18:55,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/data/309c89576/4063455d69d14686999276e61dcf2e4d [2023-11-24 23:18:55,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:18:55,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:18:55,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:55,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:18:55,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:18:55,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:55" (1/1) ... [2023-11-24 23:18:55,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d247c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:55, skipping insertion in model container [2023-11-24 23:18:55,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:55" (1/1) ... [2023-11-24 23:18:55,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:18:56,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:56,398 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:18:56,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:56,744 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:56,745 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:56,745 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:56,745 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:56,753 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:18:56,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56 WrapperNode [2023-11-24 23:18:56,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:56,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:56,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:18:56,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:18:56,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,855 INFO L138 Inliner]: procedures = 502, calls = 68, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 83 [2023-11-24 23:18:56,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:56,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:18:56,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:18:56,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:18:56,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,892 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:18:56,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:18:56,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:18:56,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:18:56,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (1/1) ... [2023-11-24 23:18:56,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:56,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:18:56,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:18:57,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:18:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 23:18:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 23:18:57,016 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:18:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:18:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:18:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:18:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:18:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:18:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:18:57,223 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:18:57,225 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:18:57,440 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:18:57,513 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:18:57,513 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:18:57,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:18:57 BoogieIcfgContainer [2023-11-24 23:18:57,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:18:57,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:18:57,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:18:57,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:18:57,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:18:55" (1/3) ... [2023-11-24 23:18:57,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2767d5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:18:57, skipping insertion in model container [2023-11-24 23:18:57,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:56" (2/3) ... [2023-11-24 23:18:57,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2767d5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:18:57, skipping insertion in model container [2023-11-24 23:18:57,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:18:57" (3/3) ... [2023-11-24 23:18:57,535 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_61_good.i [2023-11-24 23:18:57,555 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:18:57,555 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:18:57,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:18:57,624 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;@4be79390, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:18:57,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 23:18:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-24 23:18:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:18:57,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:18:57,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:18:57,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:18:57,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:18:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1527839823, now seen corresponding path program 1 times [2023-11-24 23:18:57,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:18:57,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143841760] [2023-11-24 23:18:57,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:18:57,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:18:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:18:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:18:58,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:18:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143841760] [2023-11-24 23:18:58,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143841760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:18:58,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:18:58,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:18:58,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212898345] [2023-11-24 23:18:58,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:18:58,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:18:58,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:18:58,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:18:58,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:18:58,054 INFO L87 Difference]: Start difference. First operand has 26 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:18:58,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:18:58,102 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-24 23:18:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:18:58,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 6 [2023-11-24 23:18:58,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:18:58,112 INFO L225 Difference]: With dead ends: 26 [2023-11-24 23:18:58,113 INFO L226 Difference]: Without dead ends: 17 [2023-11-24 23:18:58,116 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 [2023-11-24 23:18:58,120 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 36 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 [2023-11-24 23:18:58,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:18:58,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-24 23:18:58,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-24 23:18:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:18:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2023-11-24 23:18:58,158 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2023-11-24 23:18:58,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:18:58,158 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2023-11-24 23:18:58,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:18:58,159 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2023-11-24 23:18:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:18:58,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:18:58,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:18:58,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:18:58,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:18:58,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:18:58,161 INFO L85 PathProgramCache]: Analyzing trace with hash -118394207, now seen corresponding path program 1 times [2023-11-24 23:18:58,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:18:58,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331672802] [2023-11-24 23:18:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:18:58,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:18:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:18:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:18:58,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:18:58,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331672802] [2023-11-24 23:18:58,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331672802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:18:58,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:18:58,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:18:58,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970887011] [2023-11-24 23:18:58,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:18:58,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:18:58,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:18:58,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:18:58,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:18:58,285 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-24 23:18:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:18:58,305 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2023-11-24 23:18:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:18:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-11-24 23:18:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:18:58,307 INFO L225 Difference]: With dead ends: 17 [2023-11-24 23:18:58,307 INFO L226 Difference]: Without dead ends: 16 [2023-11-24 23:18:58,308 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 [2023-11-24 23:18:58,310 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:18:58,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:18:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-24 23:18:58,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-24 23:18:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:18:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2023-11-24 23:18:58,315 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2023-11-24 23:18:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:18:58,316 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2023-11-24 23:18:58,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-24 23:18:58,316 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2023-11-24 23:18:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:18:58,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:18:58,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:18:58,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:18:58,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:18:58,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:18:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash 446993205, now seen corresponding path program 1 times [2023-11-24 23:18:58,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:18:58,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079318002] [2023-11-24 23:18:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:18:58,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:18:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:18:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:18:58,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:18:58,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079318002] [2023-11-24 23:18:58,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079318002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:18:58,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:18:58,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:18:58,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228413583] [2023-11-24 23:18:58,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:18:58,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:18:58,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:18:58,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:18:58,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:18:58,574 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:18:58,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:18:58,607 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2023-11-24 23:18:58,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:18:58,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-24 23:18:58,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:18:58,615 INFO L225 Difference]: With dead ends: 16 [2023-11-24 23:18:58,615 INFO L226 Difference]: Without dead ends: 15 [2023-11-24 23:18:58,616 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 [2023-11-24 23:18:58,617 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:18:58,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:18:58,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-24 23:18:58,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-24 23:18:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:18:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2023-11-24 23:18:58,622 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2023-11-24 23:18:58,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:18:58,623 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2023-11-24 23:18:58,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:18:58,623 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2023-11-24 23:18:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:18:58,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:18:58,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:18:58,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:18:58,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:18:58,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:18:58,625 INFO L85 PathProgramCache]: Analyzing trace with hash 971887530, now seen corresponding path program 1 times [2023-11-24 23:18:58,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:18:58,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622100987] [2023-11-24 23:18:58,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:18:58,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:18:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:18:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:18:58,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:18:58,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622100987] [2023-11-24 23:18:58,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622100987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:18:58,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:18:58,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:18:58,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969959663] [2023-11-24 23:18:58,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:18:58,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:18:58,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:18:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:18:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:18:58,774 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:18:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:18:58,812 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2023-11-24 23:18:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:18:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-24 23:18:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:18:58,814 INFO L225 Difference]: With dead ends: 15 [2023-11-24 23:18:58,814 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:18:58,814 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 [2023-11-24 23:18:58,816 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:18:58,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:18:58,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:18:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:18:58,819 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) [2023-11-24 23:18:58,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:18:58,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-24 23:18:58,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:18:58,820 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:18:58,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:18:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:18:58,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:18:58,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-24 23:18:58,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-24 23:18:58,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-24 23:18:58,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-24 23:18:58,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:18:58,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 23:18:58,843 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-24 23:18:58,843 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-24 23:18:58,844 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-24 23:18:58,844 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-24 23:18:58,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1555) no Hoare annotation was computed. [2023-11-24 23:18:58,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 23:18:58,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1568) no Hoare annotation was computed. [2023-11-24 23:18:58,845 INFO L899 garLoopResultBuilder]: For program point L1561(lines 1561 1576) no Hoare annotation was computed. [2023-11-24 23:18:58,845 INFO L902 garLoopResultBuilder]: At program point L1557(line 1557) the Hoare annotation is: true [2023-11-24 23:18:58,845 INFO L899 garLoopResultBuilder]: For program point L1557-1(line 1557) no Hoare annotation was computed. [2023-11-24 23:18:58,845 INFO L899 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2023-11-24 23:18:58,845 INFO L899 garLoopResultBuilder]: For program point L1555-1(line 1555) no Hoare annotation was computed. [2023-11-24 23:18:58,845 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 23:18:58,846 INFO L902 garLoopResultBuilder]: At program point L1574(line 1574) the Hoare annotation is: true [2023-11-24 23:18:58,846 INFO L899 garLoopResultBuilder]: For program point L1574-1(line 1574) no Hoare annotation was computed. [2023-11-24 23:18:58,846 INFO L902 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: true [2023-11-24 23:18:58,846 INFO L899 garLoopResultBuilder]: For program point L1570-1(line 1570) no Hoare annotation was computed. [2023-11-24 23:18:58,846 INFO L899 garLoopResultBuilder]: For program point L1568(line 1568) no Hoare annotation was computed. [2023-11-24 23:18:58,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1555) no Hoare annotation was computed. [2023-11-24 23:18:58,847 INFO L899 garLoopResultBuilder]: For program point L1568-1(line 1568) no Hoare annotation was computed. [2023-11-24 23:18:58,847 INFO L899 garLoopResultBuilder]: For program point L1566(lines 1566 1575) no Hoare annotation was computed. [2023-11-24 23:18:58,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1568) no Hoare annotation was computed. [2023-11-24 23:18:58,847 INFO L902 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: true [2023-11-24 23:18:58,847 INFO L899 garLoopResultBuilder]: For program point L1587-1(line 1587) no Hoare annotation was computed. [2023-11-24 23:18:58,848 INFO L902 garLoopResultBuilder]: At program point L1585(line 1585) the Hoare annotation is: true [2023-11-24 23:18:58,848 INFO L899 garLoopResultBuilder]: For program point L1585-1(line 1585) no Hoare annotation was computed. [2023-11-24 23:18:58,851 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-24 23:18:58,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:18:58,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:18:58 BoogieIcfgContainer [2023-11-24 23:18:58,860 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:18:58,860 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:18:58,860 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:18:58,861 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:18:58,861 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:18:57" (3/4) ... [2023-11-24 23:18:58,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:18:58,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 23:18:58,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 23:18:58,874 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-24 23:18:58,874 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-24 23:18:58,874 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:18:58,875 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:18:58,983 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:18:58,984 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:18:58,984 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:18:58,985 INFO L158 Benchmark]: Toolchain (without parser) took 3732.89ms. Allocated memory is still 163.6MB. Free memory was 114.7MB in the beginning and 88.3MB in the end (delta: 26.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-11-24 23:18:58,985 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 136.3MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:18:58,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1501.44ms. Allocated memory is still 163.6MB. Free memory was 114.7MB in the beginning and 110.3MB in the end (delta: 4.4MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2023-11-24 23:18:58,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.94ms. Allocated memory is still 163.6MB. Free memory was 110.3MB in the beginning and 107.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:18:58,986 INFO L158 Benchmark]: Boogie Preprocessor took 71.77ms. Allocated memory is still 163.6MB. Free memory was 107.2MB in the beginning and 106.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:18:58,987 INFO L158 Benchmark]: RCFGBuilder took 593.63ms. Allocated memory is still 163.6MB. Free memory was 106.1MB in the beginning and 88.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:18:58,987 INFO L158 Benchmark]: TraceAbstraction took 1334.51ms. Allocated memory is still 163.6MB. Free memory was 88.3MB in the beginning and 93.6MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:18:58,987 INFO L158 Benchmark]: Witness Printer took 123.87ms. Allocated memory is still 163.6MB. Free memory was 93.6MB in the beginning and 88.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:18:58,990 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 136.3MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1501.44ms. Allocated memory is still 163.6MB. Free memory was 114.7MB in the beginning and 110.3MB in the end (delta: 4.4MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.94ms. Allocated memory is still 163.6MB. Free memory was 110.3MB in the beginning and 107.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.77ms. Allocated memory is still 163.6MB. Free memory was 107.2MB in the beginning and 106.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.63ms. Allocated memory is still 163.6MB. Free memory was 106.1MB in the beginning and 88.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1334.51ms. Allocated memory is still 163.6MB. Free memory was 88.3MB in the beginning and 93.6MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 123.87ms. Allocated memory is still 163.6MB. Free memory was 93.6MB in the beginning and 88.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1568]: 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, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 39 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 7 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-24 23:18:59,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ee19ee-e0b5-40a5-b7b4-857529d86dd4/bin/utaipan-verify-SwPr7d2a91/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