./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_16_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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 4d8cd2249fe91d9322c549d828bd9a6cd7687f22a43585de30485c04c420db7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:53:02,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:53:03,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:53:03,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:53:03,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:53:03,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:53:03,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:53:03,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:53:03,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:53:03,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:53:03,067 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:53:03,068 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:53:03,068 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:53:03,070 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:53:03,070 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:53:03,070 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:53:03,071 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:53:03,071 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:53:03,071 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:53:03,072 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:53:03,073 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:53:03,074 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:53:03,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:53:03,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:53:03,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:53:03,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:53:03,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:53:03,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:53:03,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:53:03,078 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:53:03,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:53:03,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:53:03,079 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:53:03,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:53:03,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:53:03,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:53:03,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:03,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:53:03,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:53:03,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:53:03,081 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:53:03,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:53:03,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:53:03,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:53:03,082 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:53:03,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:53:03,082 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_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d8cd2249fe91d9322c549d828bd9a6cd7687f22a43585de30485c04c420db7a [2023-11-24 23:53:03,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:53:03,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:53:03,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:53:03,392 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:53:03,396 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:53:03,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_16_bad.i [2023-11-24 23:53:06,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:53:07,031 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:53:07,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_16_bad.i [2023-11-24 23:53:07,070 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data/070a4096d/5bf6cc77002a48d29eb951b22d027298/FLAG1a4521ebf [2023-11-24 23:53:07,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data/070a4096d/5bf6cc77002a48d29eb951b22d027298 [2023-11-24 23:53:07,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:53:07,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:53:07,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:07,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:53:07,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:53:07,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:07" (1/1) ... [2023-11-24 23:53:07,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3805204b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:07, skipping insertion in model container [2023-11-24 23:53:07,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:07" (1/1) ... [2023-11-24 23:53:07,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:08,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:08,318 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:53:08,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:08,622 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:08,622 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:08,622 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:08,623 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:08,630 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:53:08,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08 WrapperNode [2023-11-24 23:53:08,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:08,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:08,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:53:08,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:53:08,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,726 INFO L138 Inliner]: procedures = 498, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-11-24 23:53:08,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:08,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:53:08,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:53:08,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:53:08,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:53:08,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:53:08,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:53:08,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:53:08,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (1/1) ... [2023-11-24 23:53:08,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:08,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:08,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:53:08,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:53:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:53:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:53:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:53:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:53:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:53:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:53:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:53:09,024 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:53:09,026 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:53:09,121 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:53:09,186 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:53:09,186 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:53:09,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:09 BoogieIcfgContainer [2023-11-24 23:53:09,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:53:09,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:53:09,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:53:09,206 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:53:09,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:53:07" (1/3) ... [2023-11-24 23:53:09,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1ab89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:09, skipping insertion in model container [2023-11-24 23:53:09,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:08" (2/3) ... [2023-11-24 23:53:09,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1ab89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:09, skipping insertion in model container [2023-11-24 23:53:09,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:09" (3/3) ... [2023-11-24 23:53:09,209 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_16_bad.i [2023-11-24 23:53:09,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:53:09,229 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:53:09,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:53:09,289 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;@23441c61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:53:09,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:53:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:53:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:53:09,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:09,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:53:09,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:53:09,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:09,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1327976055, now seen corresponding path program 1 times [2023-11-24 23:53:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:09,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895400579] [2023-11-24 23:53:09,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:09,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:53:09,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:53:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:53:09,594 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:53:09,596 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:53:09,597 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:53:09,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:53:09,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:53:09,604 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:53:09,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:53:09,625 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-24 23:53:09,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:53:09 BoogieIcfgContainer [2023-11-24 23:53:09,638 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:53:09,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:53:09,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:53:09,640 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:53:09,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:09" (3/4) ... [2023-11-24 23:53:09,646 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:53:09,647 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:53:09,649 INFO L158 Benchmark]: Toolchain (without parser) took 2544.92ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 93.7MB in the beginning and 120.1MB in the end (delta: -26.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-24 23:53:09,650 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:53:09,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1526.19ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 93.4MB in the beginning and 154.7MB in the end (delta: -61.3MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2023-11-24 23:53:09,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.06ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 151.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:53:09,657 INFO L158 Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 201.3MB. Free memory was 151.6MB in the beginning and 150.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:53:09,658 INFO L158 Benchmark]: RCFGBuilder took 402.74ms. Allocated memory is still 201.3MB. Free memory was 150.6MB in the beginning and 135.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:53:09,658 INFO L158 Benchmark]: TraceAbstraction took 446.11ms. Allocated memory is still 201.3MB. Free memory was 134.8MB in the beginning and 120.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:53:09,659 INFO L158 Benchmark]: Witness Printer took 7.63ms. Allocated memory is still 201.3MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:53:09,669 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 144.7MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1526.19ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 93.4MB in the beginning and 154.7MB in the end (delta: -61.3MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.06ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 151.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.99ms. Allocated memory is still 201.3MB. Free memory was 151.6MB in the beginning and 150.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 402.74ms. Allocated memory is still 201.3MB. Free memory was 150.6MB in the beginning and 135.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 446.11ms. Allocated memory is still 201.3MB. Free memory was 134.8MB in the beginning and 120.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 7.63ms. Allocated memory is still 201.3MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741827:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_min_predec_16_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE 1 [L1554] data = (-0x7fffffff - 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:53:09,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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 4d8cd2249fe91d9322c549d828bd9a6cd7687f22a43585de30485c04c420db7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:53:12,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:53:12,566 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-24 23:53:12,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:53:12,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:53:12,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:53:12,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:53:12,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:53:12,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:53:12,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:53:12,634 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:53:12,635 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:53:12,635 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:53:12,637 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:53:12,637 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:53:12,638 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:53:12,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:53:12,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:53:12,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:53:12,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:53:12,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:53:12,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:53:12,643 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:53:12,643 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:53:12,643 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:53:12,644 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:53:12,644 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:53:12,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:53:12,645 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:53:12,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:53:12,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:53:12,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:53:12,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:53:12,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:12,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:53:12,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:53:12,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:53:12,650 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:53:12,650 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:53:12,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:53:12,651 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:53:12,652 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:53:12,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:53:12,652 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d8cd2249fe91d9322c549d828bd9a6cd7687f22a43585de30485c04c420db7a [2023-11-24 23:53:13,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:53:13,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:53:13,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:53:13,130 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:53:13,130 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:53:13,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_16_bad.i [2023-11-24 23:53:16,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:53:16,724 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:53:16,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_16_bad.i [2023-11-24 23:53:16,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data/ef3256b97/8a735974aac64a719c4c8f05b9a0b92f/FLAG539fb1b42 [2023-11-24 23:53:16,765 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/data/ef3256b97/8a735974aac64a719c4c8f05b9a0b92f [2023-11-24 23:53:16,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:53:16,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:53:16,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:16,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:53:16,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:53:16,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:16" (1/1) ... [2023-11-24 23:53:16,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dde9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:16, skipping insertion in model container [2023-11-24 23:53:16,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:16" (1/1) ... [2023-11-24 23:53:16,878 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:18,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:18,178 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:53:18,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:18,433 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:18,433 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:18,434 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:18,434 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:18,442 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:53:18,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18 WrapperNode [2023-11-24 23:53:18,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:18,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:18,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:53:18,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:53:18,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,533 INFO L138 Inliner]: procedures = 503, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-11-24 23:53:18,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:18,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:53:18,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:53:18,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:53:18,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:53:18,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:53:18,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:53:18,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:53:18,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (1/1) ... [2023-11-24 23:53:18,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:18,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:18,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:53:18,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:53:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:53:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:53:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:53:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:53:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:53:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:53:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:53:18,948 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:53:18,952 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:53:19,115 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:53:19,156 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:53:19,156 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:53:19,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:19 BoogieIcfgContainer [2023-11-24 23:53:19,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:53:19,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:53:19,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:53:19,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:53:19,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:53:16" (1/3) ... [2023-11-24 23:53:19,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c4c071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:19, skipping insertion in model container [2023-11-24 23:53:19,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:18" (2/3) ... [2023-11-24 23:53:19,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c4c071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:19, skipping insertion in model container [2023-11-24 23:53:19,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:19" (3/3) ... [2023-11-24 23:53:19,166 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_16_bad.i [2023-11-24 23:53:19,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:53:19,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:53:19,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:53:19,289 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;@d208143, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:53:19,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:53:19,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 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) [2023-11-24 23:53:19,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:53:19,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:19,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:53:19,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:53:19,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1572156431, now seen corresponding path program 1 times [2023-11-24 23:53:19,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:53:19,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743393455] [2023-11-24 23:53:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:19,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:53:19,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:53:19,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:53:19,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:53:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:19,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:53:19,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:19,514 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 23:53:19,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:53:19,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:53:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743393455] [2023-11-24 23:53:19,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743393455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:19,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:19,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:53:19,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322933185] [2023-11-24 23:53:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:19,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:53:19,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:53:19,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:53:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:53:19,568 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:53:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:19,603 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2023-11-24 23:53:19,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:53:19,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-24 23:53:19,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:19,613 INFO L225 Difference]: With dead ends: 29 [2023-11-24 23:53:19,613 INFO L226 Difference]: Without dead ends: 11 [2023-11-24 23:53:19,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:53:19,621 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:19,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:53:19,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-24 23:53:19,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-24 23:53:19,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 23:53:19,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-24 23:53:19,660 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 10 [2023-11-24 23:53:19,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:19,660 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-24 23:53:19,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:53:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-24 23:53:19,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:53:19,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:19,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:53:19,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:53:19,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:53:19,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:53:19,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1572154509, now seen corresponding path program 1 times [2023-11-24 23:53:19,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:53:19,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139443204] [2023-11-24 23:53:19,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:19,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:53:19,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:53:19,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:53:19,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 23:53:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:53:19,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:53:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:53:20,085 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-24 23:53:20,085 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:53:20,087 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:53:20,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:53:20,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:53:20,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:53:20,297 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-24 23:53:20,301 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:53:20,317 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet98 [2023-11-24 23:53:20,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:53:20 BoogieIcfgContainer [2023-11-24 23:53:20,326 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:53:20,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:53:20,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:53:20,327 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:53:20,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:19" (3/4) ... [2023-11-24 23:53:20,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:53:20,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:53:20,332 INFO L158 Benchmark]: Toolchain (without parser) took 3562.38ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 31.0MB in the beginning and 61.6MB in the end (delta: -30.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-11-24 23:53:20,333 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 58.7MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:53:20,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1668.44ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 30.8MB in the beginning and 32.5MB in the end (delta: -1.7MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-11-24 23:53:20,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.89ms. Allocated memory is still 77.6MB. Free memory was 32.5MB in the beginning and 50.0MB in the end (delta: -17.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-11-24 23:53:20,335 INFO L158 Benchmark]: Boogie Preprocessor took 88.06ms. Allocated memory is still 77.6MB. Free memory was 50.0MB in the beginning and 47.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:53:20,336 INFO L158 Benchmark]: RCFGBuilder took 533.16ms. Allocated memory is still 77.6MB. Free memory was 47.9MB in the beginning and 33.6MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:53:20,336 INFO L158 Benchmark]: TraceAbstraction took 1166.82ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 32.8MB in the beginning and 61.6MB in the end (delta: -28.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-11-24 23:53:20,337 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 94.4MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:53:20,340 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 58.7MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1668.44ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 30.8MB in the beginning and 32.5MB in the end (delta: -1.7MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.89ms. Allocated memory is still 77.6MB. Free memory was 32.5MB in the beginning and 50.0MB in the end (delta: -17.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.06ms. Allocated memory is still 77.6MB. Free memory was 50.0MB in the beginning and 47.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.16ms. Allocated memory is still 77.6MB. Free memory was 47.9MB in the beginning and 33.6MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1166.82ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 32.8MB in the beginning and 61.6MB in the end (delta: -28.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 94.4MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet98 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_min_predec_16_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE 1 [L1554] data = (-0x7fffffff - 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:53:20,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f1c5d40-9263-4b36-94b1-d5a2e5a75247/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: UNKNOWN: Overapproximated counterexample