./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label01.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_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/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_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/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_5e4c0b98-b889-4e57-86c6-76e0a55e1219/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 f974ef5ae084ca735facbee0c59fc65e3f1da96ae509150f8b1cec197fdee20c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:28:27,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:28:27,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:28:27,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:28:27,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:28:27,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:28:27,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:28:27,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:28:27,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:28:27,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:28:27,724 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:28:27,724 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:28:27,725 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:28:27,725 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:28:27,725 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:28:27,725 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:28:27,726 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:28:27,726 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:28:27,726 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:28:27,726 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:28:27,726 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:28:27,726 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:28:27,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:28:27,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:28:27,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:28:27,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:28:27,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:28:27,729 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:28:27,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:28:27,730 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:28:27,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:28:27,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:28:27,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:28:27,730 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:28:27,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:28:27,730 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:28:27,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:28:27,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:28:27,731 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:28:27,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:28:27,731 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_5e4c0b98-b889-4e57-86c6-76e0a55e1219/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 -> f974ef5ae084ca735facbee0c59fc65e3f1da96ae509150f8b1cec197fdee20c [2024-11-14 05:28:28,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:28:28,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:28:28,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:28:28,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:28:28,061 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:28:28,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/eca-rers2012/Problem01_label01.c Unable to find full path for "g++" [2024-11-14 05:28:30,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:28:30,601 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:28:30,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/sv-benchmarks/c/eca-rers2012/Problem01_label01.c [2024-11-14 05:28:30,618 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/data/01aeb86fb/79bcac4c33c04e9e9f3c0ee5dec11d2c/FLAG7f97d28e5 [2024-11-14 05:28:30,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/data/01aeb86fb/79bcac4c33c04e9e9f3c0ee5dec11d2c [2024-11-14 05:28:30,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:28:30,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:28:30,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:28:30,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:28:30,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:28:30,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:28:30" (1/1) ... [2024-11-14 05:28:30,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3019147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:30, skipping insertion in model container [2024-11-14 05:28:30,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:28:30" (1/1) ... [2024-11-14 05:28:30,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:28:31,188 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_5e4c0b98-b889-4e57-86c6-76e0a55e1219/sv-benchmarks/c/eca-rers2012/Problem01_label01.c[16869,16882] [2024-11-14 05:28:31,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:28:31,248 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:28:31,345 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_5e4c0b98-b889-4e57-86c6-76e0a55e1219/sv-benchmarks/c/eca-rers2012/Problem01_label01.c[16869,16882] [2024-11-14 05:28:31,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:28:31,379 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:28:31,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31 WrapperNode [2024-11-14 05:28:31,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:28:31,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:28:31,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:28:31,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:28:31,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,466 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2024-11-14 05:28:31,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:28:31,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:28:31,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:28:31,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:28:31,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:28:31,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:28:31,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:28:31,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:28:31,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (1/1) ... [2024-11-14 05:28:31,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:28:31,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:28:31,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:28:31,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:28:31,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:28:31,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:28:31,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:28:31,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:28:31,741 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:28:31,744 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:28:33,291 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-14 05:28:33,292 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:28:33,644 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:28:33,646 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:28:33,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:28:33 BoogieIcfgContainer [2024-11-14 05:28:33,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:28:33,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:28:33,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:28:33,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:28:33,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:28:30" (1/3) ... [2024-11-14 05:28:33,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039e65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:28:33, skipping insertion in model container [2024-11-14 05:28:33,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:31" (2/3) ... [2024-11-14 05:28:33,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039e65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:28:33, skipping insertion in model container [2024-11-14 05:28:33,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:28:33" (3/3) ... [2024-11-14 05:28:33,657 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label01.c [2024-11-14 05:28:33,675 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:28:33,676 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label01.c that has 1 procedures, 76 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:28:33,731 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:28:33,747 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;@3bc0b60a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:28:33,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:28:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.945945945945946) internal successors, (144), 75 states have internal predecessors, (144), 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 05:28:33,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 05:28:33,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:33,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:33,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:33,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:33,770 INFO L85 PathProgramCache]: Analyzing trace with hash -131214291, now seen corresponding path program 1 times [2024-11-14 05:28:33,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:33,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500670345] [2024-11-14 05:28:33,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:33,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:34,410 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 05:28:34,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:34,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500670345] [2024-11-14 05:28:34,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500670345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:34,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:28:34,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:28:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150412528] [2024-11-14 05:28:34,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:34,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:28:34,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:34,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:28:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:34,445 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.945945945945946) internal successors, (144), 75 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 05:28:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:35,075 INFO L93 Difference]: Finished difference Result 224 states and 428 transitions. [2024-11-14 05:28:35,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:28:35,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 71 [2024-11-14 05:28:35,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:35,090 INFO L225 Difference]: With dead ends: 224 [2024-11-14 05:28:35,090 INFO L226 Difference]: Without dead ends: 145 [2024-11-14 05:28:35,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:35,099 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:35,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 17 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:28:35,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-14 05:28:35,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-14 05:28:35,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.8819444444444444) internal successors, (271), 144 states have internal predecessors, (271), 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 05:28:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 271 transitions. [2024-11-14 05:28:35,139 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 271 transitions. Word has length 71 [2024-11-14 05:28:35,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:35,139 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 271 transitions. [2024-11-14 05:28:35,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 05:28:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 271 transitions. [2024-11-14 05:28:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:28:35,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:35,142 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:35,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:28:35,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:35,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:35,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1553013030, now seen corresponding path program 1 times [2024-11-14 05:28:35,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:35,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152522443] [2024-11-14 05:28:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:35,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:28:35,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:35,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152522443] [2024-11-14 05:28:35,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152522443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:35,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:28:35,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:28:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650211375] [2024-11-14 05:28:35,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:35,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:28:35,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:28:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:35,362 INFO L87 Difference]: Start difference. First operand 145 states and 271 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:28:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:35,889 INFO L93 Difference]: Finished difference Result 431 states and 810 transitions. [2024-11-14 05:28:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:28:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-14 05:28:35,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:35,891 INFO L225 Difference]: With dead ends: 431 [2024-11-14 05:28:35,891 INFO L226 Difference]: Without dead ends: 287 [2024-11-14 05:28:35,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:35,895 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:35,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 25 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:28:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-14 05:28:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-11-14 05:28:35,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.7622377622377623) internal successors, (504), 286 states have internal predecessors, (504), 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 05:28:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 504 transitions. [2024-11-14 05:28:35,930 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 504 transitions. Word has length 76 [2024-11-14 05:28:35,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:35,930 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 504 transitions. [2024-11-14 05:28:35,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:28:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 504 transitions. [2024-11-14 05:28:35,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 05:28:35,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:35,935 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:35,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:28:35,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:35,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:35,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1590826797, now seen corresponding path program 1 times [2024-11-14 05:28:35,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:35,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593924614] [2024-11-14 05:28:35,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:35,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:28:36,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593924614] [2024-11-14 05:28:36,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593924614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:36,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:28:36,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:28:36,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199639657] [2024-11-14 05:28:36,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:36,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:28:36,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:36,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:28:36,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:36,355 INFO L87 Difference]: Start difference. First operand 287 states and 504 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 05:28:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:36,801 INFO L93 Difference]: Finished difference Result 786 states and 1371 transitions. [2024-11-14 05:28:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:28:36,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 86 [2024-11-14 05:28:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:36,805 INFO L225 Difference]: With dead ends: 786 [2024-11-14 05:28:36,805 INFO L226 Difference]: Without dead ends: 500 [2024-11-14 05:28:36,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:36,810 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 63 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:36,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 51 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:28:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-14 05:28:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2024-11-14 05:28:36,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.535070140280561) internal successors, (766), 499 states have internal predecessors, (766), 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 05:28:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 766 transitions. [2024-11-14 05:28:36,863 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 766 transitions. Word has length 86 [2024-11-14 05:28:36,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:36,863 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 766 transitions. [2024-11-14 05:28:36,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 05:28:36,864 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 766 transitions. [2024-11-14 05:28:36,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 05:28:36,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:36,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:36,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:28:36,873 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:36,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2120222820, now seen corresponding path program 1 times [2024-11-14 05:28:36,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:36,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648823262] [2024-11-14 05:28:36,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:36,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 05:28:37,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:37,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648823262] [2024-11-14 05:28:37,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648823262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:37,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:28:37,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:28:37,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101069683] [2024-11-14 05:28:37,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:37,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:28:37,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:37,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:28:37,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:37,152 INFO L87 Difference]: Start difference. First operand 500 states and 766 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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 05:28:37,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:37,536 INFO L93 Difference]: Finished difference Result 1141 states and 1764 transitions. [2024-11-14 05:28:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:28:37,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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 87 [2024-11-14 05:28:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:37,540 INFO L225 Difference]: With dead ends: 1141 [2024-11-14 05:28:37,540 INFO L226 Difference]: Without dead ends: 642 [2024-11-14 05:28:37,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:37,542 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 72 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:37,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 56 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:28:37,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-14 05:28:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2024-11-14 05:28:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.4648985959438376) internal successors, (939), 641 states have internal predecessors, (939), 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 05:28:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 939 transitions. [2024-11-14 05:28:37,563 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 939 transitions. Word has length 87 [2024-11-14 05:28:37,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:37,563 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 939 transitions. [2024-11-14 05:28:37,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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 05:28:37,564 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 939 transitions. [2024-11-14 05:28:37,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 05:28:37,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:37,567 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:37,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:28:37,567 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:37,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:37,568 INFO L85 PathProgramCache]: Analyzing trace with hash -279172683, now seen corresponding path program 1 times [2024-11-14 05:28:37,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:37,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871845334] [2024-11-14 05:28:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:37,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:28:37,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:37,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871845334] [2024-11-14 05:28:37,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871845334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:37,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:28:37,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:28:37,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450626052] [2024-11-14 05:28:37,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:37,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:28:37,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:37,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:28:37,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:28:37,839 INFO L87 Difference]: Start difference. First operand 642 states and 939 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 05:28:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:38,427 INFO L93 Difference]: Finished difference Result 1567 states and 2269 transitions. [2024-11-14 05:28:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:28:38,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2024-11-14 05:28:38,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:38,432 INFO L225 Difference]: With dead ends: 1567 [2024-11-14 05:28:38,432 INFO L226 Difference]: Without dead ends: 926 [2024-11-14 05:28:38,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 05:28:38,434 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 139 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:38,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 53 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:28:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-14 05:28:38,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 855. [2024-11-14 05:28:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 854 states have (on average 1.4262295081967213) internal successors, (1218), 854 states have internal predecessors, (1218), 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 05:28:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1218 transitions. [2024-11-14 05:28:38,462 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1218 transitions. Word has length 90 [2024-11-14 05:28:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:38,462 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1218 transitions. [2024-11-14 05:28:38,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 05:28:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1218 transitions. [2024-11-14 05:28:38,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 05:28:38,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:38,465 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:38,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:28:38,466 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:38,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash 234271446, now seen corresponding path program 1 times [2024-11-14 05:28:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:38,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241188210] [2024-11-14 05:28:38,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:38,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:38,647 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:28:38,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:38,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241188210] [2024-11-14 05:28:38,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241188210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:38,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:28:38,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:28:38,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885884096] [2024-11-14 05:28:38,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:38,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:28:38,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:38,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:28:38,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:38,651 INFO L87 Difference]: Start difference. First operand 855 states and 1218 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 05:28:38,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:38,985 INFO L93 Difference]: Finished difference Result 999 states and 1409 transitions. [2024-11-14 05:28:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:28:38,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2024-11-14 05:28:38,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:38,992 INFO L225 Difference]: With dead ends: 999 [2024-11-14 05:28:38,992 INFO L226 Difference]: Without dead ends: 997 [2024-11-14 05:28:38,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:28:38,993 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:38,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 27 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:28:38,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-14 05:28:39,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 784. [2024-11-14 05:28:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.4533844189016603) internal successors, (1138), 783 states have internal predecessors, (1138), 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 05:28:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1138 transitions. [2024-11-14 05:28:39,017 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1138 transitions. Word has length 108 [2024-11-14 05:28:39,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:39,017 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1138 transitions. [2024-11-14 05:28:39,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 05:28:39,018 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1138 transitions. [2024-11-14 05:28:39,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-14 05:28:39,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:39,020 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:39,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:28:39,020 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:39,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:39,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1859839491, now seen corresponding path program 1 times [2024-11-14 05:28:39,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:39,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746612400] [2024-11-14 05:28:39,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:39,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-14 05:28:39,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746612400] [2024-11-14 05:28:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746612400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:28:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190433052] [2024-11-14 05:28:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:39,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:28:39,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:28:39,524 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:28:39,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:28:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:39,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:28:39,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:28:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-14 05:28:39,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:28:39,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190433052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:39,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:28:39,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-14 05:28:39,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605050483] [2024-11-14 05:28:39,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:39,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:28:39,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:39,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:28:39,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:28:39,961 INFO L87 Difference]: Start difference. First operand 784 states and 1138 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 05:28:40,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:40,342 INFO L93 Difference]: Finished difference Result 1565 states and 2274 transitions. [2024-11-14 05:28:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:28:40,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 163 [2024-11-14 05:28:40,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:40,344 INFO L225 Difference]: With dead ends: 1565 [2024-11-14 05:28:40,344 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:28:40,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:28:40,346 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:40,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 123 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:28:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:28:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:28:40,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:28:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:28:40,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 163 [2024-11-14 05:28:40,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:40,348 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:28:40,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 05:28:40,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:28:40,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:28:40,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:28:40,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:28:40,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 05:28:40,555 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:40,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:28:40,673 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:28:40,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:28:40 BoogieIcfgContainer [2024-11-14 05:28:40,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:28:40,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:28:40,695 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:28:40,695 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:28:40,695 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:28:33" (3/4) ... [2024-11-14 05:28:40,698 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:28:40,713 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 118 nodes and edges [2024-11-14 05:28:40,714 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-14 05:28:40,715 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 05:28:40,716 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:28:40,874 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:28:40,874 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:28:40,874 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:28:40,876 INFO L158 Benchmark]: Toolchain (without parser) took 10127.79ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 90.9MB in the beginning and 126.2MB in the end (delta: -35.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-11-14 05:28:40,876 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 74.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:28:40,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.92ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 63.5MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:28:40,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.70ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 58.2MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:28:40,877 INFO L158 Benchmark]: Boogie Preprocessor took 76.73ms. Allocated memory is still 117.4MB. Free memory was 58.2MB in the beginning and 54.2MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:28:40,878 INFO L158 Benchmark]: RCFGBuilder took 2100.00ms. Allocated memory is still 117.4MB. Free memory was 54.2MB in the beginning and 69.9MB in the end (delta: -15.8MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-14 05:28:40,879 INFO L158 Benchmark]: TraceAbstraction took 7044.62ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 69.9MB in the beginning and 138.3MB in the end (delta: -68.4MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2024-11-14 05:28:40,879 INFO L158 Benchmark]: Witness Printer took 179.70ms. Allocated memory is still 176.2MB. Free memory was 138.3MB in the beginning and 126.2MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:28:40,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 74.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.92ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 63.5MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.70ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 58.2MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.73ms. Allocated memory is still 117.4MB. Free memory was 58.2MB in the beginning and 54.2MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2100.00ms. Allocated memory is still 117.4MB. Free memory was 54.2MB in the beginning and 69.9MB in the end (delta: -15.8MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7044.62ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 69.9MB in the beginning and 138.3MB in the end (delta: -68.4MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * Witness Printer took 179.70ms. Allocated memory is still 176.2MB. Free memory was 138.3MB in the beginning and 126.2MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 459]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 436 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 436 mSDsluCounter, 352 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 463 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1614 IncrementalHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 463 mSolverCounterUnsat, 325 mSDtfsCounter, 1614 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=855occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 284 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 844 NumberOfCodeBlocks, 844 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 836 ConstructedInterpolants, 0 QuantifiedInterpolants, 1953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 452/462 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((a21 < 1) || ((a21 == 1) && (a16 <= 5))) || ((a7 != 1) && (a21 == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:28:40,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c0b98-b889-4e57-86c6-76e0a55e1219/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE