./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje --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 32bit --witnessprinter.graph.data.programhash e5878b7d2af5fd4b66050c0dbed52215fb6ea8477622dc26391a98be7bc7f1ca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:21:27,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:21:27,653 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:21:27,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:21:27,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:21:27,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:21:27,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:21:27,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:21:27,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:21:27,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:21:27,683 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:21:27,684 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:21:27,684 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:21:27,684 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:21:27,685 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:21:27,685 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:21:27,686 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:21:27,686 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:21:27,686 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:21:27,687 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:21:27,688 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:21:27,688 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:21:27,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:21:27,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:21:27,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:21:27,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:21:27,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:21:27,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:21:27,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:21:27,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:21:27,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:21:27,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:21:27,711 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:21:27,712 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:21:27,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:21:27,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:21:27,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:21:27,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:21:27,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:21:27,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:21:27,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:21:27,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:21:27,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:21:27,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:21:27,718 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:21:27,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:21:27,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:21:27,719 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:21:27,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:21:27,720 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_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5878b7d2af5fd4b66050c0dbed52215fb6ea8477622dc26391a98be7bc7f1ca [2024-11-09 07:21:28,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:21:28,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:21:28,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:21:28,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:21:28,075 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:21:28,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c Unable to find full path for "g++" [2024-11-09 07:21:30,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:21:30,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:21:30,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2024-11-09 07:21:30,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/data/93df87865/f9337d0cb2df47f894f95fa10badd24b/FLAGde94aae53 [2024-11-09 07:21:30,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/data/93df87865/f9337d0cb2df47f894f95fa10badd24b [2024-11-09 07:21:30,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:21:30,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:21:30,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:21:30,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:21:30,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:21:30,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:30" (1/1) ... [2024-11-09 07:21:30,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b8fba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:30, skipping insertion in model container [2024-11-09 07:21:30,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:30" (1/1) ... [2024-11-09 07:21:30,851 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:21:31,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:21:31,117 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:21:31,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:21:31,189 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:21:31,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31 WrapperNode [2024-11-09 07:21:31,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:21:31,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:21:31,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:21:31,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:21:31,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,232 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 234 [2024-11-09 07:21:31,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:21:31,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:21:31,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:21:31,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:21:31,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:21:31,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:21:31,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:21:31,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:21:31,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (1/1) ... [2024-11-09 07:21:31,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:21:31,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:21:31,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:21:31,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:21:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:21:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:21:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:21:31,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:21:31,429 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:21:31,432 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:21:31,870 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-09 07:21:31,870 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:21:32,187 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:21:32,187 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:21:32,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:21:32 BoogieIcfgContainer [2024-11-09 07:21:32,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:21:32,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:21:32,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:21:32,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:21:32,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:21:30" (1/3) ... [2024-11-09 07:21:32,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5a39df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:21:32, skipping insertion in model container [2024-11-09 07:21:32,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:31" (2/3) ... [2024-11-09 07:21:32,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5a39df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:21:32, skipping insertion in model container [2024-11-09 07:21:32,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:21:32" (3/3) ... [2024-11-09 07:21:32,198 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2024-11-09 07:21:32,218 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:21:32,218 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-09 07:21:32,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:21:32,302 INFO L333 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, 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;@129fe006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:21:32,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-09 07:21:32,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 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) [2024-11-09 07:21:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 07:21:32,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:32,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 07:21:32,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:32,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:32,323 INFO L85 PathProgramCache]: Analyzing trace with hash 11435865, now seen corresponding path program 1 times [2024-11-09 07:21:32,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:32,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909175311] [2024-11-09 07:21:32,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:32,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:32,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:32,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909175311] [2024-11-09 07:21:32,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909175311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:32,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:32,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:21:32,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627954886] [2024-11-09 07:21:32,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:32,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:21:32,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:32,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:21:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:21:32,987 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 07:21:33,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:33,077 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2024-11-09 07:21:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:21:33,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2024-11-09 07:21:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:33,094 INFO L225 Difference]: With dead ends: 104 [2024-11-09 07:21:33,094 INFO L226 Difference]: Without dead ends: 67 [2024-11-09 07:21:33,098 INFO L431 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 [2024-11-09 07:21:33,103 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:33,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 98 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:21:33,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-09 07:21:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2024-11-09 07:21:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 54 states have internal predecessors, (76), 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) [2024-11-09 07:21:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2024-11-09 07:21:33,147 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 4 [2024-11-09 07:21:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:33,148 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions. [2024-11-09 07:21:33,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 07:21:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2024-11-09 07:21:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 07:21:33,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:33,150 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 07:21:33,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:21:33,150 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:33,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash 354540999, now seen corresponding path program 1 times [2024-11-09 07:21:33,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:33,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699180360] [2024-11-09 07:21:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:33,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:33,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:33,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699180360] [2024-11-09 07:21:33,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699180360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:33,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:33,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:21:33,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294826697] [2024-11-09 07:21:33,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:33,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:21:33,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:33,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:21:33,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:21:33,661 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 07:21:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:33,834 INFO L93 Difference]: Finished difference Result 92 states and 118 transitions. [2024-11-09 07:21:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:21:33,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2024-11-09 07:21:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:33,838 INFO L225 Difference]: With dead ends: 92 [2024-11-09 07:21:33,839 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 07:21:33,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:21:33,841 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:33,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 30 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:21:33,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 07:21:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 72. [2024-11-09 07:21:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 71 states have internal predecessors, (101), 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) [2024-11-09 07:21:33,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2024-11-09 07:21:33,860 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 5 [2024-11-09 07:21:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:33,863 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2024-11-09 07:21:33,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-09 07:21:33,864 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2024-11-09 07:21:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 07:21:33,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:33,865 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:33,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:21:33,865 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:33,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:33,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1411491081, now seen corresponding path program 1 times [2024-11-09 07:21:33,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:33,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714162531] [2024-11-09 07:21:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:33,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:34,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:34,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714162531] [2024-11-09 07:21:34,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714162531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:34,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:34,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:21:34,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969428953] [2024-11-09 07:21:34,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:34,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:21:34,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:34,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:21:34,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:21:34,319 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-09 07:21:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:34,472 INFO L93 Difference]: Finished difference Result 86 states and 112 transitions. [2024-11-09 07:21:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:21:34,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2024-11-09 07:21:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:34,474 INFO L225 Difference]: With dead ends: 86 [2024-11-09 07:21:34,474 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 07:21:34,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:21:34,475 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:34,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 33 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:21:34,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 07:21:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 73. [2024-11-09 07:21:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 61 states have (on average 1.639344262295082) internal successors, (100), 72 states have internal predecessors, (100), 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) [2024-11-09 07:21:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 100 transitions. [2024-11-09 07:21:34,493 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 100 transitions. Word has length 7 [2024-11-09 07:21:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:34,494 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 100 transitions. [2024-11-09 07:21:34,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-09 07:21:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 100 transitions. [2024-11-09 07:21:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 07:21:34,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:34,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:34,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:21:34,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:34,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:34,496 INFO L85 PathProgramCache]: Analyzing trace with hash 806550787, now seen corresponding path program 1 times [2024-11-09 07:21:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:34,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802907456] [2024-11-09 07:21:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:34,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:34,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:34,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802907456] [2024-11-09 07:21:34,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802907456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:34,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:34,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:21:34,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847040284] [2024-11-09 07:21:34,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:34,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:21:34,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:34,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:21:34,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:21:34,942 INFO L87 Difference]: Start difference. First operand 73 states and 100 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-09 07:21:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:35,085 INFO L93 Difference]: Finished difference Result 148 states and 205 transitions. [2024-11-09 07:21:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:21:35,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2024-11-09 07:21:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:35,086 INFO L225 Difference]: With dead ends: 148 [2024-11-09 07:21:35,086 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 07:21:35,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:21:35,088 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:35,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 37 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:21:35,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 07:21:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 83. [2024-11-09 07:21:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 71 states have (on average 1.619718309859155) internal successors, (115), 82 states have internal predecessors, (115), 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) [2024-11-09 07:21:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2024-11-09 07:21:35,102 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 8 [2024-11-09 07:21:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:35,103 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-11-09 07:21:35,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-09 07:21:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2024-11-09 07:21:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 07:21:35,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:35,104 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:35,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:21:35,104 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:35,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash 621899659, now seen corresponding path program 1 times [2024-11-09 07:21:35,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:35,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740455534] [2024-11-09 07:21:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:35,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:35,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:35,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740455534] [2024-11-09 07:21:35,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740455534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:35,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:35,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:21:35,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422865366] [2024-11-09 07:21:35,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:35,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:21:35,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:35,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:21:35,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:21:35,204 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) [2024-11-09 07:21:35,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:35,240 INFO L93 Difference]: Finished difference Result 174 states and 241 transitions. [2024-11-09 07:21:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:21:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) Word has length 16 [2024-11-09 07:21:35,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:35,241 INFO L225 Difference]: With dead ends: 174 [2024-11-09 07:21:35,241 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 07:21:35,242 INFO L431 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 [2024-11-09 07:21:35,243 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:35,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 64 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:21:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 07:21:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2024-11-09 07:21:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 82 states have (on average 1.6341463414634145) internal successors, (134), 93 states have internal predecessors, (134), 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) [2024-11-09 07:21:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2024-11-09 07:21:35,252 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 16 [2024-11-09 07:21:35,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:35,252 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2024-11-09 07:21:35,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) [2024-11-09 07:21:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2024-11-09 07:21:35,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 07:21:35,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:35,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:35,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:21:35,254 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:35,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:35,255 INFO L85 PathProgramCache]: Analyzing trace with hash -694472769, now seen corresponding path program 1 times [2024-11-09 07:21:35,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:35,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488497794] [2024-11-09 07:21:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:35,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:35,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:35,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488497794] [2024-11-09 07:21:35,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488497794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:35,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:35,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:21:35,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575746746] [2024-11-09 07:21:35,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:35,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:21:35,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:35,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:21:35,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:21:35,406 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-09 07:21:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:35,433 INFO L93 Difference]: Finished difference Result 177 states and 257 transitions. [2024-11-09 07:21:35,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:21:35,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) Word has length 20 [2024-11-09 07:21:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:35,437 INFO L225 Difference]: With dead ends: 177 [2024-11-09 07:21:35,437 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 07:21:35,438 INFO L431 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 [2024-11-09 07:21:35,439 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:35,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:21:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 07:21:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-09 07:21:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 82 states have (on average 1.5609756097560976) internal successors, (128), 93 states have internal predecessors, (128), 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) [2024-11-09 07:21:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions. [2024-11-09 07:21:35,448 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 128 transitions. Word has length 20 [2024-11-09 07:21:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:35,448 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 128 transitions. [2024-11-09 07:21:35,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-09 07:21:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 128 transitions. [2024-11-09 07:21:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 07:21:35,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:35,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:35,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:21:35,450 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:35,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash 420110968, now seen corresponding path program 1 times [2024-11-09 07:21:35,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159193975] [2024-11-09 07:21:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:35,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:35,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159193975] [2024-11-09 07:21:35,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159193975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:35,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:35,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:21:35,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985132743] [2024-11-09 07:21:35,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:35,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:21:35,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:35,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:21:35,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:21:35,591 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-09 07:21:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:35,622 INFO L93 Difference]: Finished difference Result 175 states and 223 transitions. [2024-11-09 07:21:35,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:21:35,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2024-11-09 07:21:35,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:35,624 INFO L225 Difference]: With dead ends: 175 [2024-11-09 07:21:35,624 INFO L226 Difference]: Without dead ends: 95 [2024-11-09 07:21:35,624 INFO L431 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 [2024-11-09 07:21:35,625 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:35,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 80 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:21:35,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-09 07:21:35,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 80. [2024-11-09 07:21:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.5294117647058822) internal successors, (104), 79 states have internal predecessors, (104), 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) [2024-11-09 07:21:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2024-11-09 07:21:35,639 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 21 [2024-11-09 07:21:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:35,639 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2024-11-09 07:21:35,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-09 07:21:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2024-11-09 07:21:35,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 07:21:35,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:35,644 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:35,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:21:35,644 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:35,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash -28004430, now seen corresponding path program 1 times [2024-11-09 07:21:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:35,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225113369] [2024-11-09 07:21:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:36,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:36,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225113369] [2024-11-09 07:21:36,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225113369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:21:36,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423877233] [2024-11-09 07:21:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:36,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:36,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:21:36,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:21:36,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:21:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:36,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:21:36,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:21:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:38,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:21:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:39,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423877233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:21:39,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [578930644] [2024-11-09 07:21:39,397 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 07:21:39,397 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:21:39,401 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:21:39,407 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:21:39,408 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:21:46,857 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:21:48,710 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1781#(and (or (and (= ~mode2~0 0) (exists ((v_~mode2~0_65 Int)) (not (= (mod v_~mode2~0_65 256) 0)))) (and (= ~mode2~0 1) (or (exists ((v_~p2_new~0_41 Int)) (and (<= (mod v_~p2_new~0_41 256) 127) (or (and (<= 128 (mod ~send2~0 256)) (or (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_41 ~nomsg~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256))))) (and (<= (mod ~send2~0 256) 127) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod ~send2~0 256) ~p2_old~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256)))))))) (exists ((v_~p2_new~0_41 Int)) (and (or (and (or (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_41 ~nomsg~0))) (<= 128 (mod ~send2~0 256))) (and (<= (mod ~send2~0 256) 127) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod ~send2~0 256) ~p2_old~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256)))))) (<= 128 (mod v_~p2_new~0_41 256))))) (exists ((v_~mode2~0_65 Int)) (= (mod v_~mode2~0_65 256) 0)))) (= ~nomsg~0 ~p1_new~0) (<= 0 ~mode1~0) (= ~p3_new~0 ~nomsg~0) (<= (+ 2147483649 ~st2~0 ~st1~0) 0) (or (and (exists ((v_~mode3~0_63 Int)) (not (= (mod v_~mode3~0_63 256) 0))) (= ~mode3~0 0)) (and (exists ((v_~mode3~0_63 Int)) (= (mod v_~mode3~0_63 256) 0)) (= ~mode3~0 1) (or (and (not (= ~send3~0 ~nomsg~0)) (or (and (<= (mod ~send3~0 256) 127) (= ~p3_old~0 (mod ~send3~0 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (<= 128 (mod ~send3~0 256))))) (exists ((v_~p3_new~0_33 Int)) (and (or (and (<= 128 (mod v_~p3_new~0_33 256)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_33 256))) (and (<= (mod v_~p3_new~0_33 256) 127) (= ~p3_old~0 (mod v_~p3_new~0_33 256)))) (or (not (= v_~p3_new~0_33 ~nomsg~0)) (= ~send3~0 ~nomsg~0))))))) (= ~nomsg~0 ~p2_new~0) (<= ~mode1~0 1))' at error location [2024-11-09 07:21:48,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:21:48,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:21:48,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 13 [2024-11-09 07:21:48,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485254933] [2024-11-09 07:21:48,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:21:48,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 07:21:48,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:48,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 07:21:48,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-09 07:21:48,714 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. Second operand has 15 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) [2024-11-09 07:21:48,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:48,878 INFO L93 Difference]: Finished difference Result 86 states and 110 transitions. [2024-11-09 07:21:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:21:48,878 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) Word has length 23 [2024-11-09 07:21:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:48,879 INFO L225 Difference]: With dead ends: 86 [2024-11-09 07:21:48,879 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 07:21:48,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-09 07:21:48,881 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 42 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:48,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 42 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:21:48,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 07:21:48,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2024-11-09 07:21:48,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 73 states have internal predecessors, (88), 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) [2024-11-09 07:21:48,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 88 transitions. [2024-11-09 07:21:48,886 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 88 transitions. Word has length 23 [2024-11-09 07:21:48,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:48,886 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 88 transitions. [2024-11-09 07:21:48,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) [2024-11-09 07:21:48,887 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 88 transitions. [2024-11-09 07:21:48,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 07:21:48,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:48,887 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:48,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:21:49,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:49,092 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:21:49,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:49,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1142446028, now seen corresponding path program 1 times [2024-11-09 07:21:49,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:49,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486642360] [2024-11-09 07:21:49,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:49,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:21:49,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:49,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486642360] [2024-11-09 07:21:49,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486642360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:21:49,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697066862] [2024-11-09 07:21:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:49,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:49,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:21:49,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:21:49,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:21:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:49,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:21:49,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:21:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:50,978 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:21:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:52,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697066862] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:21:52,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810144245] [2024-11-09 07:21:52,655 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 07:21:52,655 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:21:52,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:21:52,656 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:21:52,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:21:58,291 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:22:00,055 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2121#(and (= ~nomsg~0 ~p1_new~0) (<= 0 (+ ~st2~0 ~st1~0 2147483648)) (<= 0 ~mode1~0) (= ~p3_new~0 ~nomsg~0) (or (and (= ~mode3~0 0) (exists ((v_~mode3~0_72 Int)) (not (= (mod v_~mode3~0_72 256) 0)))) (and (= ~mode3~0 1) (exists ((v_~mode3~0_72 Int)) (= (mod v_~mode3~0_72 256) 0)) (or (exists ((v_~p3_new~0_40 Int)) (and (or (= ~send3~0 ~nomsg~0) (not (= v_~p3_new~0_40 ~nomsg~0))) (or (and (<= 128 (mod v_~p3_new~0_40 256)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_40 256))) (and (= ~p3_old~0 (mod v_~p3_new~0_40 256)) (<= (mod v_~p3_new~0_40 256) 127))))) (and (not (= ~send3~0 ~nomsg~0)) (or (and (<= (mod ~send3~0 256) 127) (= ~p3_old~0 (mod ~send3~0 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (<= 128 (mod ~send3~0 256)))))))) (<= (+ ~st2~0 ~st1~0) 2147483647) (<= (+ 2147483649 ~st3~0 ~st2~0 ~st1~0) 0) (= ~nomsg~0 ~p2_new~0) (<= ~mode1~0 1) (or (and (= ~mode2~0 1) (or (and (or (exists ((v_~p2_new~0_48 Int)) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))))) (exists ((v_~p2_new~0_48 Int)) (and (or (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))) (<= 128 (mod v_~p2_new~0_48 256))))) (<= 128 (mod ~send2~0 256))) (and (<= (mod ~send2~0 256) 127) (or (exists ((v_~p2_new~0_48 Int)) (and (or (and (= (mod ~send2~0 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0)) (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0)))) (<= 128 (mod v_~p2_new~0_48 256)))) (exists ((v_~p2_new~0_48 Int)) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0)))))))) (exists ((v_~mode2~0_73 Int)) (= (mod v_~mode2~0_73 256) 0))) (and (= ~mode2~0 0) (exists ((v_~mode2~0_73 Int)) (not (= (mod v_~mode2~0_73 256) 0))))))' at error location [2024-11-09 07:22:00,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:22:00,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:22:00,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 13 [2024-11-09 07:22:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815474875] [2024-11-09 07:22:00,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:00,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 07:22:00,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:00,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 07:22:00,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=650, Unknown=0, NotChecked=0, Total=812 [2024-11-09 07:22:00,058 INFO L87 Difference]: Start difference. First operand 74 states and 88 transitions. Second operand has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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) [2024-11-09 07:22:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:00,306 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2024-11-09 07:22:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:22:00,308 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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) Word has length 25 [2024-11-09 07:22:00,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:00,309 INFO L225 Difference]: With dead ends: 108 [2024-11-09 07:22:00,309 INFO L226 Difference]: Without dead ends: 105 [2024-11-09 07:22:00,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 07:22:00,310 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 197 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:00,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 44 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:22:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-09 07:22:00,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 71. [2024-11-09 07:22:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 70 states have internal predecessors, (80), 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) [2024-11-09 07:22:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2024-11-09 07:22:00,322 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 25 [2024-11-09 07:22:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:00,322 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2024-11-09 07:22:00,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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) [2024-11-09 07:22:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2024-11-09 07:22:00,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 07:22:00,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:00,323 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:00,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:22:00,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:00,524 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 07:22:00,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1056088264, now seen corresponding path program 1 times [2024-11-09 07:22:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216602394] [2024-11-09 07:22:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:00,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:22:01,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:01,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216602394] [2024-11-09 07:22:01,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216602394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:22:01,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924955150] [2024-11-09 07:22:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:01,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:01,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:01,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:01,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:22:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:01,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 07:22:01,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:22:04,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:22:18,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924955150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:18,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2077396841] [2024-11-09 07:22:18,775 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 07:22:18,776 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:22:18,776 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:22:18,776 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:22:18,776 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:23,592 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:22:25,572 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2498#(and (<= 0 ~mode1~0) (<= ~mode1~0 1) (<= 2147483648 (+ ~st3~0 ~st2~0 ~st1~0)))' at error location [2024-11-09 07:22:25,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:22:25,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:22:25,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 7] total 16 [2024-11-09 07:22:25,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076551326] [2024-11-09 07:22:25,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:25,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:22:25,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:25,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:22:25,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:22:25,575 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 18 states, 17 states have (on average 4.470588235294118) internal successors, (76), 17 states have internal predecessors, (76), 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) [2024-11-09 07:22:25,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:25,756 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2024-11-09 07:22:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:22:25,757 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.470588235294118) internal successors, (76), 17 states have internal predecessors, (76), 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) Word has length 26 [2024-11-09 07:22:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:25,757 INFO L225 Difference]: With dead ends: 87 [2024-11-09 07:22:25,757 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:22:25,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 07:22:25,759 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 112 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:25,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 41 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:22:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:22:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:22:25,760 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) [2024-11-09 07:22:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:22:25,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-09 07:22:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:25,760 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:22:25,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.470588235294118) internal successors, (76), 17 states have internal predecessors, (76), 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) [2024-11-09 07:22:25,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:22:25,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:22:25,763 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-11-09 07:22:25,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-11-09 07:22:25,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-09 07:22:25,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-09 07:22:25,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-09 07:22:25,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-09 07:22:25,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-09 07:22:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-09 07:22:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-09 07:22:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-09 07:22:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-09 07:22:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-09 07:22:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-09 07:22:25,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-09 07:22:25,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:22:25,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:25,972 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:25,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 07:22:26,100 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:22:26,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:22:26 BoogieIcfgContainer [2024-11-09 07:22:26,115 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:22:26,115 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:22:26,115 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:22:26,116 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:22:26,116 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:21:32" (3/4) ... [2024-11-09 07:22:26,119 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:22:26,129 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2024-11-09 07:22:26,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 07:22:26,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 07:22:26,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:22:26,241 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:22:26,241 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:22:26,241 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:22:26,242 INFO L158 Benchmark]: Toolchain (without parser) took 55445.25ms. Allocated memory was 140.5MB in the beginning and 1.1GB in the end (delta: 992.0MB). Free memory was 103.7MB in the beginning and 442.3MB in the end (delta: -338.7MB). Peak memory consumption was 654.9MB. Max. memory is 16.1GB. [2024-11-09 07:22:26,242 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:22:26,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.09ms. Allocated memory is still 140.5MB. Free memory was 103.2MB in the beginning and 88.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:22:26,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.92ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 85.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:22:26,243 INFO L158 Benchmark]: Boogie Preprocessor took 33.77ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 84.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:22:26,244 INFO L158 Benchmark]: RCFGBuilder took 920.10ms. Allocated memory was 140.5MB in the beginning and 211.8MB in the end (delta: 71.3MB). Free memory was 84.1MB in the beginning and 154.7MB in the end (delta: -70.7MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2024-11-09 07:22:26,244 INFO L158 Benchmark]: TraceAbstraction took 53924.28ms. Allocated memory was 211.8MB in the beginning and 1.1GB in the end (delta: 920.6MB). Free memory was 154.7MB in the beginning and 450.7MB in the end (delta: -296.0MB). Peak memory consumption was 625.7MB. Max. memory is 16.1GB. [2024-11-09 07:22:26,244 INFO L158 Benchmark]: Witness Printer took 125.85ms. Allocated memory is still 1.1GB. Free memory was 449.7MB in the beginning and 442.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 07:22:26,246 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.09ms. Allocated memory is still 140.5MB. Free memory was 103.2MB in the beginning and 88.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.92ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 85.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.77ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 84.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 920.10ms. Allocated memory was 140.5MB in the beginning and 211.8MB in the end (delta: 71.3MB). Free memory was 84.1MB in the beginning and 154.7MB in the end (delta: -70.7MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. * TraceAbstraction took 53924.28ms. Allocated memory was 211.8MB in the beginning and 1.1GB in the end (delta: 920.6MB). Free memory was 154.7MB in the beginning and 450.7MB in the end (delta: -296.0MB). Peak memory consumption was 625.7MB. Max. memory is 16.1GB. * Witness Printer took 125.85ms. Allocated memory is still 1.1GB. Free memory was 449.7MB in the beginning and 442.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: 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 1 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 53.7s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 536 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 640 IncrementalHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 264 mSDtfsCounter, 640 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 146 SyntacticMatches, 5 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1306 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=5, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 114 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 27.1s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 12660 SizeOfPredicates, 69 NumberOfNonLiveVariables, 395 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 14/63 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 14 specifications checked. All of them hold - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: ((((((st2 == 1) || (st2 == 0)) && (mode1 == 1)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0))) || (((((st2 == 1) || (st2 == 0)) && (mode1 == 0)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 07:22:26,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af64de75-1408-43cd-a02b-2d3c55b808dc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE