./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strtoull.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strtoull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a24f374d1420975a1e7754ddde980f0b5d764d7e3a740acbfbc8098c38afffcd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:55:55,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:55:55,818 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:55:55,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:55:55,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:55:55,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:55:55,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:55:55,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:55:55,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:55:55,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:55:55,877 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:55:55,877 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:55:55,878 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:55:55,880 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:55:55,880 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:55:55,880 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:55:55,881 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:55:55,881 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:55:55,882 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:55:55,882 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:55:55,883 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:55:55,883 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:55:55,885 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:55:55,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:55:55,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:55:55,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:55:55,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:55:55,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:55:55,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:55:55,888 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:55:55,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:55:55,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:55:55,890 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:55:55,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:55:55,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:55:55,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:55:55,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:55,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:55:55,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:55:55,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:55:55,892 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:55:55,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:55:55,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:55:55,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:55:55,893 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:55:55,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:55:55,894 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_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a24f374d1420975a1e7754ddde980f0b5d764d7e3a740acbfbc8098c38afffcd [2023-11-24 23:55:56,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:55:56,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:55:56,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:55:56,302 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:55:56,303 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:55:56,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/termination-dietlibc/strtoull.i [2023-11-24 23:55:59,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:55:59,887 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:55:59,888 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/sv-benchmarks/c/termination-dietlibc/strtoull.i [2023-11-24 23:55:59,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/data/6a3eee10d/6540f09b159c4548aa00b6bfe5ca2ae3/FLAG51cacc278 [2023-11-24 23:55:59,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/data/6a3eee10d/6540f09b159c4548aa00b6bfe5ca2ae3 [2023-11-24 23:55:59,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:55:59,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:55:59,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:59,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:55:59,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:55:59,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:59" (1/1) ... [2023-11-24 23:55:59,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f86170e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:59, skipping insertion in model container [2023-11-24 23:55:59,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:59" (1/1) ... [2023-11-24 23:56:00,008 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:00,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:00,529 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:00,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:00,651 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:00,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00 WrapperNode [2023-11-24 23:56:00,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:00,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:00,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:00,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:00,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,718 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 185 [2023-11-24 23:56:00,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:00,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:00,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:00,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:00,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:00,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:00,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:00,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:00,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (1/1) ... [2023-11-24 23:56:00,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:00,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:00,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:00,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:56:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:56:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:56:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:56:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:56:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:56:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:01,018 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:01,021 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:01,428 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:56:01,529 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:56:01,529 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 23:56:01,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:01 BoogieIcfgContainer [2023-11-24 23:56:01,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:56:01,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:56:01,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:56:01,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:56:01,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:55:59" (1/3) ... [2023-11-24 23:56:01,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7900b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:01, skipping insertion in model container [2023-11-24 23:56:01,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:00" (2/3) ... [2023-11-24 23:56:01,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7900b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:01, skipping insertion in model container [2023-11-24 23:56:01,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:01" (3/3) ... [2023-11-24 23:56:01,543 INFO L112 eAbstractionObserver]: Analyzing ICFG strtoull.i [2023-11-24 23:56:01,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:56:01,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-24 23:56:01,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:56:01,642 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f5164ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:56:01,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-24 23:56:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 52 states have (on average 1.8076923076923077) internal successors, (94), 78 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:01,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:56:01,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:01,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-24 23:56:01,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-24 23:56:01,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:01,664 INFO L85 PathProgramCache]: Analyzing trace with hash 226063, now seen corresponding path program 1 times [2023-11-24 23:56:01,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:01,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314867695] [2023-11-24 23:56:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:01,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:01,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:01,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314867695] [2023-11-24 23:56:01,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314867695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:01,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:01,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:56:01,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713994965] [2023-11-24 23:56:01,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:01,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:01,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:01,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:01,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:01,989 INFO L87 Difference]: Start difference. First operand has 79 states, 52 states have (on average 1.8076923076923077) internal successors, (94), 78 states have internal predecessors, (94), 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, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:02,076 INFO L93 Difference]: Finished difference Result 137 states and 175 transitions. [2023-11-24 23:56:02,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:02,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-24 23:56:02,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:02,091 INFO L225 Difference]: With dead ends: 137 [2023-11-24 23:56:02,091 INFO L226 Difference]: Without dead ends: 63 [2023-11-24 23:56:02,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:02,100 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:02,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:02,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-24 23:56:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-24 23:56:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.469387755102041) internal successors, (72), 62 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) [2023-11-24 23:56:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2023-11-24 23:56:02,156 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 3 [2023-11-24 23:56:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:02,157 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2023-11-24 23:56:02,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:02,157 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2023-11-24 23:56:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:56:02,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:02,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 23:56:02,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:56:02,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-24 23:56:02,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash 7007997, now seen corresponding path program 1 times [2023-11-24 23:56:02,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:02,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83390752] [2023-11-24 23:56:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:02,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:02,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:02,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83390752] [2023-11-24 23:56:02,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83390752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:02,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:02,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:56:02,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167203580] [2023-11-24 23:56:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:02,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:02,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:02,255 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 3 states, 2 states have (on average 2.0) 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) [2023-11-24 23:56:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:02,301 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2023-11-24 23:56:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:02,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 [2023-11-24 23:56:02,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:02,308 INFO L225 Difference]: With dead ends: 63 [2023-11-24 23:56:02,309 INFO L226 Difference]: Without dead ends: 61 [2023-11-24 23:56:02,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:02,313 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 59 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 [2023-11-24 23:56:02,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 59 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-24 23:56:02,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-24 23:56:02,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:02,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2023-11-24 23:56:02,330 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 4 [2023-11-24 23:56:02,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:02,331 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2023-11-24 23:56:02,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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) [2023-11-24 23:56:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2023-11-24 23:56:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:56:02,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:02,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:56:02,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:56:02,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-24 23:56:02,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1855242137, now seen corresponding path program 1 times [2023-11-24 23:56:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:02,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217311030] [2023-11-24 23:56:02,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:02,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:02,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217311030] [2023-11-24 23:56:02,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217311030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:02,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:02,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:56:02,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892828273] [2023-11-24 23:56:02,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:02,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:56:02,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:02,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:56:02,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:56:02,535 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:02,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:02,598 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2023-11-24 23:56:02,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:56:02,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2023-11-24 23:56:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:02,601 INFO L225 Difference]: With dead ends: 69 [2023-11-24 23:56:02,601 INFO L226 Difference]: Without dead ends: 67 [2023-11-24 23:56:02,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:56:02,603 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 4 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:02,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 183 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-24 23:56:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2023-11-24 23:56:02,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 65 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) [2023-11-24 23:56:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2023-11-24 23:56:02,614 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 6 [2023-11-24 23:56:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:02,614 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2023-11-24 23:56:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2023-11-24 23:56:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:56:02,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:02,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-24 23:56:02,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:56:02,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-24 23:56:02,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:02,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2105881060, now seen corresponding path program 1 times [2023-11-24 23:56:02,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:02,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386842421] [2023-11-24 23:56:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:02,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:02,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:02,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386842421] [2023-11-24 23:56:02,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386842421] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:56:02,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071755984] [2023-11-24 23:56:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:02,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:56:02,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:02,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:56:02,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:56:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:02,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:56:02,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:02,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:56:02,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071755984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:02,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:56:02,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-24 23:56:02,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378855238] [2023-11-24 23:56:02,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:02,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:56:02,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:02,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:56:02,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:56:02,957 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:03,031 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2023-11-24 23:56:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:56:03,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2023-11-24 23:56:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:03,033 INFO L225 Difference]: With dead ends: 67 [2023-11-24 23:56:03,033 INFO L226 Difference]: Without dead ends: 66 [2023-11-24 23:56:03,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:56:03,035 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:03,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 240 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:03,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-24 23:56:03,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2023-11-24 23:56:03,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 64 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:03,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2023-11-24 23:56:03,045 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 11 [2023-11-24 23:56:03,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:03,045 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2023-11-24 23:56:03,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:03,046 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2023-11-24 23:56:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:56:03,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:03,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2023-11-24 23:56:03,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-24 23:56:03,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:56:03,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-24 23:56:03,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:03,262 INFO L85 PathProgramCache]: Analyzing trace with hash -857803365, now seen corresponding path program 1 times [2023-11-24 23:56:03,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:03,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432492914] [2023-11-24 23:56:03,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:03,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:03,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432492914] [2023-11-24 23:56:03,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432492914] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:56:03,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564469484] [2023-11-24 23:56:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:03,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:56:03,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:03,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:56:03,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:56:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:03,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:56:03,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:03,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:56:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:03,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564469484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:56:03,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [72161594] [2023-11-24 23:56:03,659 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-24 23:56:03,659 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:56:03,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:56:03,670 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:56:03,671 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:56:04,681 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:56:04,881 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '835#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~in~0#1.base|) (= |ULTIMATE.start_main_~in~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_#t~malloc22#1.base|) (<= 2 |ULTIMATE.start_main_~in_len~0#1|) (= |ULTIMATE.start_main_#t~malloc22#1.offset| 0) (<= 2147483647 |ULTIMATE.start_main_#t~post23#1|))' at error location [2023-11-24 23:56:04,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:56:04,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:56:04,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-24 23:56:04,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276039398] [2023-11-24 23:56:04,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:56:04,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:56:04,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:56:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-24 23:56:04,888 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:05,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:05,040 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2023-11-24 23:56:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 23:56:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 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 12 [2023-11-24 23:56:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:05,045 INFO L225 Difference]: With dead ends: 85 [2023-11-24 23:56:05,045 INFO L226 Difference]: Without dead ends: 84 [2023-11-24 23:56:05,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-24 23:56:05,048 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 21 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:05,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 189 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-24 23:56:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2023-11-24 23:56:05,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 79 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2023-11-24 23:56:05,077 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 12 [2023-11-24 23:56:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:05,078 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2023-11-24 23:56:05,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:05,080 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-11-24 23:56:05,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:56:05,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:05,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:05,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:56:05,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:56:05,292 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-24 23:56:05,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash 185772287, now seen corresponding path program 1 times [2023-11-24 23:56:05,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:05,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498848726] [2023-11-24 23:56:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:05,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:05,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:56:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:05,429 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:56:05,429 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:56:05,431 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-24 23:56:05,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-24 23:56:05,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-24 23:56:05,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-24 23:56:05,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-24 23:56:05,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-24 23:56:05,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-24 23:56:05,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-24 23:56:05,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-24 23:56:05,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-24 23:56:05,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-24 23:56:05,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-24 23:56:05,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-11-24 23:56:05,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 26 remaining) [2023-11-24 23:56:05,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-24 23:56:05,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-24 23:56:05,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-24 23:56:05,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-24 23:56:05,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-24 23:56:05,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-24 23:56:05,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-24 23:56:05,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-24 23:56:05,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-24 23:56:05,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-24 23:56:05,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-24 23:56:05,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-24 23:56:05,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:56:05,453 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-24 23:56:05,459 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:56:05,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc22 [2023-11-24 23:56:05,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc22 [2023-11-24 23:56:05,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc22 [2023-11-24 23:56:05,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-24 23:56:05,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated [2023-11-24 23:56:05,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated [2023-11-24 23:56:05,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~ptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-24 23:56:05,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~pre7 [2023-11-24 23:56:05,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~post5 [2023-11-24 23:56:05,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-24 23:56:05,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 23:56:05,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~ptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-24 23:56:05,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~endptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-24 23:56:05,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 23:56:05,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~pre7 [2023-11-24 23:56:05,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~post5 [2023-11-24 23:56:05,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~pre7 [2023-11-24 23:56:05,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~ptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-24 23:56:05,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~post5 [2023-11-24 23:56:05,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 23:56:05,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:56:05 BoogieIcfgContainer [2023-11-24 23:56:05,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:56:05,514 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:56:05,514 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:56:05,514 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:56:05,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:01" (3/4) ... [2023-11-24 23:56:05,520 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 23:56:05,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc22 [2023-11-24 23:56:05,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc22 [2023-11-24 23:56:05,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc22 [2023-11-24 23:56:05,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-24 23:56:05,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~endptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-24 23:56:05,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated [2023-11-24 23:56:05,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~endptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-24 23:56:05,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 23:56:05,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~pre7 [2023-11-24 23:56:05,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~post5 [2023-11-24 23:56:05,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-24 23:56:05,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated [2023-11-24 23:56:05,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~pre7 [2023-11-24 23:56:05,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~post5 [2023-11-24 23:56:05,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 23:56:05,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~post5 [2023-11-24 23:56:05,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 23:56:05,552 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~pre7 [2023-11-24 23:56:05,610 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eafaa3c-a84c-4a21-833a-009c09b91889/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:56:05,611 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:56:05,612 INFO L158 Benchmark]: Toolchain (without parser) took 5667.25ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 103.1MB in the beginning and 94.6MB in the end (delta: 8.5MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2023-11-24 23:56:05,612 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:05,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.14ms. Allocated memory is still 138.4MB. Free memory was 103.1MB in the beginning and 85.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:56:05,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.90ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 83.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:05,615 INFO L158 Benchmark]: Boogie Preprocessor took 40.98ms. Allocated memory is still 138.4MB. Free memory was 83.0MB in the beginning and 81.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:05,615 INFO L158 Benchmark]: RCFGBuilder took 770.34ms. Allocated memory is still 138.4MB. Free memory was 81.0MB in the beginning and 83.8MB in the end (delta: -2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:05,616 INFO L158 Benchmark]: TraceAbstraction took 3979.32ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 83.0MB in the beginning and 97.7MB in the end (delta: -14.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2023-11-24 23:56:05,616 INFO L158 Benchmark]: Witness Printer took 97.02ms. Allocated memory is still 167.8MB. Free memory was 97.7MB in the beginning and 94.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:05,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.14ms. Allocated memory is still 138.4MB. Free memory was 103.1MB in the beginning and 85.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.90ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 83.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.98ms. Allocated memory is still 138.4MB. Free memory was 83.0MB in the beginning and 81.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 770.34ms. Allocated memory is still 138.4MB. Free memory was 81.0MB in the beginning and 83.8MB in the end (delta: -2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3979.32ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 83.0MB in the beginning and 97.7MB in the end (delta: -14.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Witness Printer took 97.02ms. Allocated memory is still 167.8MB. Free memory was 97.7MB in the beginning and 94.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~ptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~pre7 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~post5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~ptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~endptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~pre7 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~post5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~pre7 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~ptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~post5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc22 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~endptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~endptr!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~pre7 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~post5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~pre7 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~post5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~post5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~pre7 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 519]: integer overflow possible integer overflow possible We found a FailurePath: [L551] int in_len = __VERIFIER_nondet_int(); [L552] COND FALSE !(in_len < 1) [L553] char* in = __builtin_alloca (in_len); [L554] int i=0; VAL [i=0, in={3:0}, in_len=1] [L554] EXPR in_len-1 VAL [i=0, in={3:0}, in_len=1] [L554] COND FALSE !(i