./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/matrix-2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/matrix-2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29c60028fe77c919c85938e022adc26e4c09a5802df35e9dae1aea434a543980 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:11:44,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:11:44,858 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:11:44,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:11:44,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:11:44,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:11:44,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:11:44,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:11:44,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:11:44,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:11:44,886 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:11:44,886 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:11:44,887 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:11:44,887 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:11:44,887 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:11:44,887 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:11:44,887 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:11:44,887 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:11:44,887 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:11:44,888 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:11:44,888 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:11:44,888 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:11:44,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:11:44,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:11:44,890 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:11:44,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:11:44,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:11:44,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:11:44,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:11:44,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:11:44,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:11:44,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:11:44,891 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E 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 ! call(reach_error())) ) 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 -> 29c60028fe77c919c85938e022adc26e4c09a5802df35e9dae1aea434a543980 [2024-11-14 05:11:45,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:11:45,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:11:45,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:11:45,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:11:45,174 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:11:45,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loops/matrix-2-2.c Unable to find full path for "g++" [2024-11-14 05:11:47,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:11:47,337 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:11:47,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/sv-benchmarks/c/loops/matrix-2-2.c [2024-11-14 05:11:47,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/data/efda32a1e/6792d4ed2b684652a2fb9c236247af52/FLAG22dc9f499 [2024-11-14 05:11:47,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/data/efda32a1e/6792d4ed2b684652a2fb9c236247af52 [2024-11-14 05:11:47,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:11:47,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:11:47,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:11:47,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:11:47,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:11:47,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10571aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47, skipping insertion in model container [2024-11-14 05:11:47,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:11:47,806 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/sv-benchmarks/c/loops/matrix-2-2.c[322,335] [2024-11-14 05:11:47,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:11:47,851 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:11:47,862 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/sv-benchmarks/c/loops/matrix-2-2.c[322,335] [2024-11-14 05:11:47,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:11:47,900 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:11:47,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47 WrapperNode [2024-11-14 05:11:47,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:11:47,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:11:47,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:11:47,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:11:47,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,948 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-14 05:11:47,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:11:47,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:11:47,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:11:47,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:11:47,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:11:47,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:11:47,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:11:47,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:11:47,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (1/1) ... [2024-11-14 05:11:47,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:11:48,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:48,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:11:48,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:11:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:11:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:11:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:11:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:11:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:11:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:11:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:11:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:11:48,129 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:11:48,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:11:48,319 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-14 05:11:48,319 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:11:48,380 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:11:48,380 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-14 05:11:48,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:11:48 BoogieIcfgContainer [2024-11-14 05:11:48,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:11:48,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:11:48,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:11:48,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:11:48,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:11:47" (1/3) ... [2024-11-14 05:11:48,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb10429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:11:48, skipping insertion in model container [2024-11-14 05:11:48,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:11:47" (2/3) ... [2024-11-14 05:11:48,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb10429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:11:48, skipping insertion in model container [2024-11-14 05:11:48,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:11:48" (3/3) ... [2024-11-14 05:11:48,395 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix-2-2.c [2024-11-14 05:11:48,412 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:11:48,414 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG matrix-2-2.c that has 1 procedures, 12 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-14 05:11:48,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:11:48,494 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;@57eae090, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:11:48,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:11:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) [2024-11-14 05:11:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:11:48,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:48,508 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:48,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:11:48,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1636826879, now seen corresponding path program 1 times [2024-11-14 05:11:48,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:48,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853675584] [2024-11-14 05:11:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:48,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:11:48,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:48,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853675584] [2024-11-14 05:11:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853675584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:48,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:11:48,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:11:48,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352886169] [2024-11-14 05:11:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:49,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:11:49,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:11:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:11:49,042 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-14 05:11:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:49,129 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2024-11-14 05:11:49,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:11:49,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 [2024-11-14 05:11:49,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:49,139 INFO L225 Difference]: With dead ends: 29 [2024-11-14 05:11:49,139 INFO L226 Difference]: Without dead ends: 18 [2024-11-14 05:11:49,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:11:49,151 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:49,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:11:49,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-14 05:11:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 11. [2024-11-14 05:11:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2024-11-14 05:11:49,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-14 05:11:49,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 7 [2024-11-14 05:11:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:49,189 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-14 05:11:49,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-14 05:11:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2024-11-14 05:11:49,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:11:49,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:49,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:49,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:11:49,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:11:49,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:49,194 INFO L85 PathProgramCache]: Analyzing trace with hash 319653721, now seen corresponding path program 1 times [2024-11-14 05:11:49,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:49,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575219395] [2024-11-14 05:11:49,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:49,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:11:49,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:49,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575219395] [2024-11-14 05:11:49,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575219395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:49,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:11:49,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:11:49,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274492042] [2024-11-14 05:11:49,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:49,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:11:49,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:49,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:11:49,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:11:49,458 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-14 05:11:49,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:49,555 INFO L93 Difference]: Finished difference Result 29 states and 40 transitions. [2024-11-14 05:11:49,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:11:49,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2024-11-14 05:11:49,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:49,556 INFO L225 Difference]: With dead ends: 29 [2024-11-14 05:11:49,556 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 05:11:49,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:11:49,558 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:49,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:11:49,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 05:11:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2024-11-14 05:11:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2024-11-14 05:11:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-11-14 05:11:49,563 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2024-11-14 05:11:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:49,563 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-14 05:11:49,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-14 05:11:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2024-11-14 05:11:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:11:49,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:49,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:49,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:11:49,564 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:11:49,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash -281372348, now seen corresponding path program 1 times [2024-11-14 05:11:49,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:49,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324666367] [2024-11-14 05:11:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:49,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:11:49,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807018166] [2024-11-14 05:11:49,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:49,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:49,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:49,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:49,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:11:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:11:49,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:11:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:11:49,756 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:11:49,756 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:11:49,757 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:11:49,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:11:49,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:49,963 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 05:11:49,985 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:11:49,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:11:49 BoogieIcfgContainer [2024-11-14 05:11:49,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:11:49,989 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:11:49,989 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:11:49,989 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:11:49,990 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:11:48" (3/4) ... [2024-11-14 05:11:49,991 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 05:11:50,040 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53be61a-5ed3-4cac-819b-e7dd35e4cd37/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:11:50,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:11:50,042 INFO L158 Benchmark]: Toolchain (without parser) took 2427.98ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 54.5MB in the end (delta: 38.4MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2024-11-14 05:11:50,043 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:11:50,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.16ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.4MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:11:50,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.58ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:11:50,045 INFO L158 Benchmark]: Boogie Preprocessor took 38.60ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 998.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:11:50,045 INFO L158 Benchmark]: RCFGBuilder took 392.21ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 64.1MB in the end (delta: 15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:11:50,046 INFO L158 Benchmark]: TraceAbstraction took 1605.79ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 56.6MB in the end (delta: 7.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-14 05:11:50,046 INFO L158 Benchmark]: Witness Printer took 50.84ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:11:50,050 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 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.16ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.4MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.58ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.60ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 998.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 392.21ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 64.1MB in the end (delta: 15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1605.79ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 56.6MB in the end (delta: 7.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Witness Printer took 50.84ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.2MB). There was no memory consumed. 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] COND FALSE !(N_LIN >= 4000000000 / sizeof(int) || N_COL >= 4000000000 / sizeof(int)) [L21] unsigned int j,k; [L22] int matriz[N_COL][N_LIN], maior; [L24] maior = __VERIFIER_nondet_int() [L25] j=0 VAL [N_COL=1, N_LIN=1, j=0, maior=-1, matriz={4:0}] [L25] COND TRUE jmaior [L31] EXPR matriz[j][k] [L31] maior = matriz[j][k] [L26] k++ VAL [N_COL=1, N_LIN=1, j=0, k=1, maior=0, matriz={4:0}] [L26] COND FALSE !(k