./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_42_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_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/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_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_42_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/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_1d866dbd-5d3c-481d-9608-cab8b2b75142/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 f5ecff1838cc39793ce1244b4acab50f4fb55c3d93f368944390e91fc1d2c6eb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:06:28,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:06:28,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-25 00:06:28,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:06:28,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:06:28,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:06:28,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:06:28,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:06:28,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:06:28,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:06:28,999 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:06:29,000 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:06:29,001 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:06:29,003 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:06:29,004 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:06:29,004 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:06:29,005 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:06:29,005 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:06:29,006 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:06:29,006 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:06:29,007 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:06:29,007 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:06:29,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:06:29,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:06:29,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:06:29,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:06:29,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:06:29,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:06:29,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:06:29,012 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:06:29,013 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:06:29,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:06:29,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:06:29,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:06:29,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:06:29,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:06:29,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:29,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:06:29,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:06:29,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:06:29,017 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:06:29,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:06:29,017 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:06:29,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:06:29,018 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:06:29,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:06:29,019 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_1d866dbd-5d3c-481d-9608-cab8b2b75142/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5ecff1838cc39793ce1244b4acab50f4fb55c3d93f368944390e91fc1d2c6eb [2023-11-25 00:06:29,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:06:29,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:06:29,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:06:29,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:06:29,378 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:06:29,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_42_good.i [2023-11-25 00:06:32,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:06:32,964 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:06:32,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_42_good.i [2023-11-25 00:06:32,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/data/611830020/3d9065035a4843f182e282797c6813b2/FLAG07cbb27d0 [2023-11-25 00:06:33,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/data/611830020/3d9065035a4843f182e282797c6813b2 [2023-11-25 00:06:33,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:06:33,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:06:33,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:33,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:06:33,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:06:33,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:33" (1/1) ... [2023-11-25 00:06:33,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f121d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:33, skipping insertion in model container [2023-11-25 00:06:33,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:33" (1/1) ... [2023-11-25 00:06:33,119 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:06:34,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:34,275 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:06:34,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:34,540 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:34,541 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:34,541 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:34,541 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:34,550 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:06:34,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34 WrapperNode [2023-11-25 00:06:34,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:34,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:34,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:06:34,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:06:34,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,644 INFO L138 Inliner]: procedures = 502, calls = 62, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 72 [2023-11-25 00:06:34,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:34,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:06:34,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:06:34,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:06:34,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:06:34,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:06:34,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:06:34,681 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:06:34,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (1/1) ... [2023-11-25 00:06:34,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:34,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:06:34,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:06:34,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-25 00:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-25 00:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-25 00:06:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-25 00:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:06:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-25 00:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:06:34,927 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:06:34,930 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:06:35,120 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:06:35,204 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:06:35,204 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:06:35,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:35 BoogieIcfgContainer [2023-11-25 00:06:35,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:06:35,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:06:35,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:06:35,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:06:35,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:06:33" (1/3) ... [2023-11-25 00:06:35,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b58616f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:35, skipping insertion in model container [2023-11-25 00:06:35,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:34" (2/3) ... [2023-11-25 00:06:35,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b58616f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:35, skipping insertion in model container [2023-11-25 00:06:35,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:35" (3/3) ... [2023-11-25 00:06:35,223 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_42_good.i [2023-11-25 00:06:35,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:06:35,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-25 00:06:35,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:06:35,294 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;@7e18850d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:06:35,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-25 00:06:35,299 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) [2023-11-25 00:06:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:06:35,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:35,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:35,308 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)] === [2023-11-25 00:06:35,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:35,313 INFO L85 PathProgramCache]: Analyzing trace with hash -118394175, now seen corresponding path program 1 times [2023-11-25 00:06:35,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:35,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872181767] [2023-11-25 00:06:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:35,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:35,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872181767] [2023-11-25 00:06:35,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872181767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:35,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:35,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:35,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783315504] [2023-11-25 00:06:35,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:35,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:35,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:35,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:35,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:35,672 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, 3 states have (on average 1.6666666666666667) 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) [2023-11-25 00:06:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:35,739 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2023-11-25 00:06:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:35,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 [2023-11-25 00:06:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:35,748 INFO L225 Difference]: With dead ends: 40 [2023-11-25 00:06:35,748 INFO L226 Difference]: Without dead ends: 13 [2023-11-25 00:06:35,752 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 [2023-11-25 00:06:35,759 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:35,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:06:35,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-25 00:06:35,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-25 00:06:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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) [2023-11-25 00:06:35,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-25 00:06:35,817 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-11-25 00:06:35,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:35,819 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-25 00:06:35,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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) [2023-11-25 00:06:35,819 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-25 00:06:35,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-25 00:06:35,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:35,821 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:35,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:06:35,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-25 00:06:35,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:35,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1427883369, now seen corresponding path program 1 times [2023-11-25 00:06:35,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:35,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270321903] [2023-11-25 00:06:35,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:35,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:06:35,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:35,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270321903] [2023-11-25 00:06:35,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270321903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:35,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:35,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:06:35,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225965557] [2023-11-25 00:06:35,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:35,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:35,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:35,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:35,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:35,997 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-25 00:06:36,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:36,013 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2023-11-25 00:06:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:36,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 12 [2023-11-25 00:06:36,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:36,014 INFO L225 Difference]: With dead ends: 13 [2023-11-25 00:06:36,014 INFO L226 Difference]: Without dead ends: 12 [2023-11-25 00:06:36,015 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 [2023-11-25 00:06:36,017 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:36,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:06:36,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-25 00:06:36,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-25 00:06:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:06:36,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-25 00:06:36,022 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 12 [2023-11-25 00:06:36,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:36,022 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-25 00:06:36,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-25 00:06:36,023 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-25 00:06:36,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-25 00:06:36,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:36,024 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:36,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:06:36,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-25 00:06:36,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:36,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1314711412, now seen corresponding path program 1 times [2023-11-25 00:06:36,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:36,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712558812] [2023-11-25 00:06:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:36,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:06:36,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:36,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712558812] [2023-11-25 00:06:36,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712558812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:36,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:36,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:06:36,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141621862] [2023-11-25 00:06:36,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:36,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:36,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:36,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:36,108 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-25 00:06:36,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:36,122 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-25 00:06:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:36,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 [2023-11-25 00:06:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:36,123 INFO L225 Difference]: With dead ends: 12 [2023-11-25 00:06:36,123 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:06:36,124 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 [2023-11-25 00:06:36,125 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:36,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:06:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:06:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:06:36,127 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) [2023-11-25 00:06:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:06:36,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-25 00:06:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:36,128 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:06:36,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-25 00:06:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:06:36,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:06:36,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-25 00:06:36,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-25 00:06:36,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-25 00:06:36,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-25 00:06:36,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:06:36,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-25 00:06:36,156 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-25 00:06:36,156 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-25 00:06:36,157 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-25 00:06:36,158 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-25 00:06:36,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2023-11-25 00:06:36,159 INFO L899 garLoopResultBuilder]: For program point L1569(lines 1569 1584) no Hoare annotation was computed. [2023-11-25 00:06:36,160 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-25 00:06:36,160 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1559) no Hoare annotation was computed. [2023-11-25 00:06:36,160 INFO L902 garLoopResultBuilder]: At program point L1561(line 1561) the Hoare annotation is: true [2023-11-25 00:06:36,160 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2023-11-25 00:06:36,160 INFO L899 garLoopResultBuilder]: For program point L1559(line 1559) no Hoare annotation was computed. [2023-11-25 00:06:36,161 INFO L899 garLoopResultBuilder]: For program point L1559-1(line 1559) no Hoare annotation was computed. [2023-11-25 00:06:36,161 INFO L895 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodB2G_~data~1#1| 2147483648) 0) [2023-11-25 00:06:36,161 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2023-11-25 00:06:36,161 INFO L895 garLoopResultBuilder]: At program point L1578(line 1578) the Hoare annotation is: false [2023-11-25 00:06:36,161 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-25 00:06:36,162 INFO L899 garLoopResultBuilder]: For program point L1578-1(line 1578) no Hoare annotation was computed. [2023-11-25 00:06:36,162 INFO L899 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2023-11-25 00:06:36,162 INFO L899 garLoopResultBuilder]: For program point L1576-1(line 1576) no Hoare annotation was computed. [2023-11-25 00:06:36,162 INFO L899 garLoopResultBuilder]: For program point L1574(lines 1574 1583) no Hoare annotation was computed. [2023-11-25 00:06:36,162 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2023-11-25 00:06:36,163 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1559) no Hoare annotation was computed. [2023-11-25 00:06:36,164 INFO L902 garLoopResultBuilder]: At program point L1595(line 1595) the Hoare annotation is: true [2023-11-25 00:06:36,164 INFO L899 garLoopResultBuilder]: For program point L1595-1(line 1595) no Hoare annotation was computed. [2023-11-25 00:06:36,165 INFO L902 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: true [2023-11-25 00:06:36,166 INFO L899 garLoopResultBuilder]: For program point L1593-1(line 1593) no Hoare annotation was computed. [2023-11-25 00:06:36,175 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-25 00:06:36,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:06:36,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:06:36 BoogieIcfgContainer [2023-11-25 00:06:36,191 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:06:36,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:06:36,196 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:06:36,196 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:06:36,197 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:35" (3/4) ... [2023-11-25 00:06:36,200 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-25 00:06:36,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-25 00:06:36,205 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-25 00:06:36,214 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-25 00:06:36,214 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-25 00:06:36,215 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-25 00:06:36,215 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:06:36,316 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:06:36,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-25 00:06:36,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:06:36,317 INFO L158 Benchmark]: Toolchain (without parser) took 3289.51ms. Allocated memory is still 144.7MB. Free memory was 96.0MB in the beginning and 57.8MB in the end (delta: 38.1MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2023-11-25 00:06:36,318 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 77.4MB in the beginning and 77.4MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:06:36,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1518.00ms. Allocated memory is still 144.7MB. Free memory was 95.6MB in the beginning and 69.8MB in the end (delta: 25.8MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2023-11-25 00:06:36,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.39ms. Allocated memory is still 144.7MB. Free memory was 69.8MB in the beginning and 66.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:06:36,320 INFO L158 Benchmark]: Boogie Preprocessor took 34.26ms. Allocated memory is still 144.7MB. Free memory was 66.4MB in the beginning and 65.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:06:36,321 INFO L158 Benchmark]: RCFGBuilder took 526.30ms. Allocated memory is still 144.7MB. Free memory was 65.1MB in the beginning and 110.3MB in the end (delta: -45.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-25 00:06:36,321 INFO L158 Benchmark]: TraceAbstraction took 979.53ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 63.2MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-25 00:06:36,322 INFO L158 Benchmark]: Witness Printer took 120.89ms. Allocated memory is still 144.7MB. Free memory was 63.2MB in the beginning and 57.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-25 00:06:36,325 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 77.4MB in the beginning and 77.4MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1518.00ms. Allocated memory is still 144.7MB. Free memory was 95.6MB in the beginning and 69.8MB in the end (delta: 25.8MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.39ms. Allocated memory is still 144.7MB. Free memory was 69.8MB in the beginning and 66.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.26ms. Allocated memory is still 144.7MB. Free memory was 66.4MB in the beginning and 65.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 526.30ms. Allocated memory is still 144.7MB. Free memory was 65.1MB in the beginning and 110.3MB in the end (delta: -45.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 979.53ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 63.2MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 120.89ms. Allocated memory is still 144.7MB. Free memory was 63.2MB in the beginning and 57.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 14 NumberOfFragments, 11 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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! [2023-11-25 00:06:36,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d866dbd-5d3c-481d-9608-cab8b2b75142/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE