./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX --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 e9fc1c4ac9b5c9b782fe33ece5b0fcbdb6337af474d3fecce508816632ae710b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:45:53,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:45:53,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:45:53,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:45:53,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:45:54,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:45:54,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:45:54,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:45:54,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:45:54,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:45:54,026 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:45:54,027 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:45:54,028 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:45:54,029 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:45:54,030 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:45:54,030 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:45:54,031 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:45:54,031 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:45:54,032 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:45:54,032 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:45:54,033 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:45:54,033 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:45:54,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:45:54,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:45:54,035 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:45:54,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:45:54,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:45:54,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:45:54,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:45:54,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:45:54,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:45:54,039 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:45:54,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:45:54,039 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:45:54,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:45:54,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:45:54,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:45:54,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:45:54,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:45:54,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:45:54,049 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:45:54,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:45:54,050 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:45:54,050 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:45:54,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:45:54,051 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fc1c4ac9b5c9b782fe33ece5b0fcbdb6337af474d3fecce508816632ae710b [2023-11-12 00:45:54,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:45:54,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:45:54,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:45:54,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:45:54,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:45:54,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/eca-rers2012/Problem01_label19.c [2023-11-12 00:45:57,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:45:57,787 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:45:57,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/sv-benchmarks/c/eca-rers2012/Problem01_label19.c [2023-11-12 00:45:57,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/data/d82f5f283/86ce818a169e444f84c2a5e0b0cda82c/FLAG71aaa0d45 [2023-11-12 00:45:57,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/data/d82f5f283/86ce818a169e444f84c2a5e0b0cda82c [2023-11-12 00:45:57,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:45:57,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:45:57,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:45:57,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:45:57,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:45:57,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:57" (1/1) ... [2023-11-12 00:45:57,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c289cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:57, skipping insertion in model container [2023-11-12 00:45:57,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:57" (1/1) ... [2023-11-12 00:45:57,926 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:45:58,218 WARN L240 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_2fb45c69-8c4d-4e45-aa71-fa391d669abe/sv-benchmarks/c/eca-rers2012/Problem01_label19.c[16251,16264] [2023-11-12 00:45:58,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:45:58,276 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:45:58,403 WARN L240 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_2fb45c69-8c4d-4e45-aa71-fa391d669abe/sv-benchmarks/c/eca-rers2012/Problem01_label19.c[16251,16264] [2023-11-12 00:45:58,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:45:58,442 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:45:58,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58 WrapperNode [2023-11-12 00:45:58,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:45:58,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:45:58,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:45:58,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:45:58,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,549 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2023-11-12 00:45:58,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:45:58,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:45:58,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:45:58,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:45:58,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:45:58,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:45:58,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:45:58,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:45:58,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:45:58,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:45:58,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:45:58,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:45:58,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:45:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:45:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:45:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:45:58,874 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:45:58,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:46:00,073 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:46:00,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:46:00,386 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:46:00,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:00 BoogieIcfgContainer [2023-11-12 00:46:00,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:46:00,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:46:00,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:46:00,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:46:00,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:45:57" (1/3) ... [2023-11-12 00:46:00,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e61d089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:00, skipping insertion in model container [2023-11-12 00:46:00,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58" (2/3) ... [2023-11-12 00:46:00,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e61d089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:00, skipping insertion in model container [2023-11-12 00:46:00,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:00" (3/3) ... [2023-11-12 00:46:00,401 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2023-11-12 00:46:00,421 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:46:00,421 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:46:00,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:46:00,486 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@533d7c34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:46:00,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:46:00,492 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) [2023-11-12 00:46:00,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-12 00:46:00,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:00,506 INFO L195 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] [2023-11-12 00:46:00,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:00,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash 379009726, now seen corresponding path program 1 times [2023-11-12 00:46:00,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:00,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464983412] [2023-11-12 00:46:00,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:00,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:01,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464983412] [2023-11-12 00:46:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464983412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:01,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:01,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:46:01,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679116329] [2023-11-12 00:46:01,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:01,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:01,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:01,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:01,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:01,171 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) [2023-11-12 00:46:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:01,663 INFO L93 Difference]: Finished difference Result 224 states and 428 transitions. [2023-11-12 00:46:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:01,666 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 [2023-11-12 00:46:01,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:01,684 INFO L225 Difference]: With dead ends: 224 [2023-11-12 00:46:01,684 INFO L226 Difference]: Without dead ends: 145 [2023-11-12 00:46:01,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:01,693 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 26 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:01,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:46:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-12 00:46:01,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-12 00:46:01,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.7986111111111112) internal successors, (259), 144 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 259 transitions. [2023-11-12 00:46:01,743 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 259 transitions. Word has length 71 [2023-11-12 00:46:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:01,744 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 259 transitions. [2023-11-12 00:46:01,744 INFO L496 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) [2023-11-12 00:46:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 259 transitions. [2023-11-12 00:46:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 00:46:01,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:01,748 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-12 00:46:01,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:46:01,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:01,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:01,750 INFO L85 PathProgramCache]: Analyzing trace with hash -615351983, now seen corresponding path program 1 times [2023-11-12 00:46:01,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:01,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424310510] [2023-11-12 00:46:01,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:01,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:01,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:01,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424310510] [2023-11-12 00:46:01,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424310510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:01,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:01,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:46:01,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563321910] [2023-11-12 00:46:01,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:01,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:01,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:01,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:01,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:01,877 INFO L87 Difference]: Start difference. First operand 145 states and 259 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:02,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:02,318 INFO L93 Difference]: Finished difference Result 431 states and 774 transitions. [2023-11-12 00:46:02,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:02,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2023-11-12 00:46:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:02,324 INFO L225 Difference]: With dead ends: 431 [2023-11-12 00:46:02,324 INFO L226 Difference]: Without dead ends: 287 [2023-11-12 00:46:02,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:02,331 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 80 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:02,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 34 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:46:02,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-12 00:46:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2023-11-12 00:46:02,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.632867132867133) internal successors, (467), 286 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:02,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 467 transitions. [2023-11-12 00:46:02,359 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 467 transitions. Word has length 77 [2023-11-12 00:46:02,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:02,359 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 467 transitions. [2023-11-12 00:46:02,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:02,360 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 467 transitions. [2023-11-12 00:46:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 00:46:02,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:02,364 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:02,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:46:02,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:02,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:02,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1933841364, now seen corresponding path program 1 times [2023-11-12 00:46:02,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:02,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848806821] [2023-11-12 00:46:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:46:02,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:02,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848806821] [2023-11-12 00:46:02,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848806821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:02,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:02,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:46:02,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921923887] [2023-11-12 00:46:02,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:02,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:02,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:02,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:02,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:02,606 INFO L87 Difference]: Start difference. First operand 287 states and 467 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:03,000 INFO L93 Difference]: Finished difference Result 715 states and 1184 transitions. [2023-11-12 00:46:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:03,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-11-12 00:46:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:03,004 INFO L225 Difference]: With dead ends: 715 [2023-11-12 00:46:03,004 INFO L226 Difference]: Without dead ends: 429 [2023-11-12 00:46:03,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:03,007 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:03,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 26 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:46:03,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-11-12 00:46:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 358. [2023-11-12 00:46:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 357 states have (on average 1.6442577030812324) internal successors, (587), 357 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 587 transitions. [2023-11-12 00:46:03,030 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 587 transitions. Word has length 105 [2023-11-12 00:46:03,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:03,030 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 587 transitions. [2023-11-12 00:46:03,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:03,031 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 587 transitions. [2023-11-12 00:46:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-12 00:46:03,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:03,035 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:03,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:46:03,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:03,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:03,036 INFO L85 PathProgramCache]: Analyzing trace with hash 218730230, now seen corresponding path program 1 times [2023-11-12 00:46:03,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:03,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788489281] [2023-11-12 00:46:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:03,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:03,336 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 00:46:03,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:03,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788489281] [2023-11-12 00:46:03,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788489281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:03,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:03,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:46:03,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11558788] [2023-11-12 00:46:03,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:03,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:03,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:03,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:03,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:03,342 INFO L87 Difference]: Start difference. First operand 358 states and 587 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) [2023-11-12 00:46:03,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:03,687 INFO L93 Difference]: Finished difference Result 857 states and 1387 transitions. [2023-11-12 00:46:03,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:03,688 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 109 [2023-11-12 00:46:03,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:03,691 INFO L225 Difference]: With dead ends: 857 [2023-11-12 00:46:03,691 INFO L226 Difference]: Without dead ends: 500 [2023-11-12 00:46:03,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:03,693 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 77 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:03,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 50 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:46:03,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-12 00:46:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2023-11-12 00:46:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.5330661322645291) internal successors, (765), 499 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 765 transitions. [2023-11-12 00:46:03,719 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 765 transitions. Word has length 109 [2023-11-12 00:46:03,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:03,720 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 765 transitions. [2023-11-12 00:46:03,720 INFO L496 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) [2023-11-12 00:46:03,720 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 765 transitions. [2023-11-12 00:46:03,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-12 00:46:03,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:03,728 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:46:03,729 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:03,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:03,730 INFO L85 PathProgramCache]: Analyzing trace with hash -692397332, now seen corresponding path program 1 times [2023-11-12 00:46:03,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:03,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799762180] [2023-11-12 00:46:03,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:03,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-12 00:46:03,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:03,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799762180] [2023-11-12 00:46:03,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799762180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:03,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:03,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:46:03,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937105177] [2023-11-12 00:46:03,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:03,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:03,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:03,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:03,963 INFO L87 Difference]: Start difference. First operand 500 states and 765 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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) [2023-11-12 00:46:04,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:04,334 INFO L93 Difference]: Finished difference Result 1352 states and 2033 transitions. [2023-11-12 00:46:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:04,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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 122 [2023-11-12 00:46:04,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:04,335 INFO L225 Difference]: With dead ends: 1352 [2023-11-12 00:46:04,336 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:46:04,337 INFO L412 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 [2023-11-12 00:46:04,338 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:04,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 24 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:46:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:46:04,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:46:04,340 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) [2023-11-12 00:46:04,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:46:04,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 122 [2023-11-12 00:46:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:04,340 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:46:04,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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) [2023-11-12 00:46:04,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:46:04,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:46:04,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:46:04,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:46:04,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:46:04,400 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2023-11-12 00:46:04,400 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2023-11-12 00:46:04,401 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2023-11-12 00:46:04,401 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2023-11-12 00:46:04,401 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2023-11-12 00:46:04,401 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2023-11-12 00:46:04,401 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2023-11-12 00:46:04,402 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2023-11-12 00:46:04,402 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2023-11-12 00:46:04,402 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2023-11-12 00:46:04,402 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2023-11-12 00:46:04,402 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2023-11-12 00:46:04,403 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2023-11-12 00:46:04,403 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2023-11-12 00:46:04,403 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2023-11-12 00:46:04,403 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2023-11-12 00:46:04,403 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2023-11-12 00:46:04,420 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2023-11-12 00:46:04,420 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2023-11-12 00:46:04,420 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2023-11-12 00:46:04,420 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2023-11-12 00:46:04,420 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2023-11-12 00:46:04,420 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2023-11-12 00:46:04,421 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2023-11-12 00:46:04,421 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2023-11-12 00:46:04,421 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2023-11-12 00:46:04,424 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2023-11-12 00:46:04,425 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2023-11-12 00:46:04,425 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2023-11-12 00:46:04,425 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2023-11-12 00:46:04,425 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2023-11-12 00:46:04,426 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2023-11-12 00:46:04,426 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2023-11-12 00:46:04,426 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2023-11-12 00:46:04,426 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2023-11-12 00:46:04,427 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2023-11-12 00:46:04,427 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2023-11-12 00:46:04,427 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2023-11-12 00:46:04,427 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2023-11-12 00:46:04,427 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2023-11-12 00:46:04,428 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2023-11-12 00:46:04,428 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2023-11-12 00:46:04,428 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2023-11-12 00:46:04,428 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2023-11-12 00:46:04,428 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2023-11-12 00:46:04,429 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2023-11-12 00:46:04,429 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2023-11-12 00:46:04,429 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2023-11-12 00:46:04,429 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2023-11-12 00:46:04,429 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:46:04,430 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2023-11-12 00:46:04,430 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 604) no Hoare annotation was computed. [2023-11-12 00:46:04,430 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2023-11-12 00:46:04,430 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2023-11-12 00:46:04,430 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2023-11-12 00:46:04,431 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2023-11-12 00:46:04,431 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2023-11-12 00:46:04,431 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2023-11-12 00:46:04,431 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2023-11-12 00:46:04,431 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:46:04,432 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2023-11-12 00:46:04,432 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2023-11-12 00:46:04,432 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2023-11-12 00:46:04,432 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2023-11-12 00:46:04,432 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2023-11-12 00:46:04,433 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2023-11-12 00:46:04,433 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (or (< ~a16~0 6) (and (= ~a21~0 1) (<= 15 ~a8~0)) (= ~a20~0 1)) [2023-11-12 00:46:04,434 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2023-11-12 00:46:04,434 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 40 585) no Hoare annotation was computed. [2023-11-12 00:46:04,434 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 444) no Hoare annotation was computed. [2023-11-12 00:46:04,434 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2023-11-12 00:46:04,435 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2023-11-12 00:46:04,435 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2023-11-12 00:46:04,435 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2023-11-12 00:46:04,435 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2023-11-12 00:46:04,435 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2023-11-12 00:46:04,439 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:46:04,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:46:04,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:46:04 BoogieIcfgContainer [2023-11-12 00:46:04,457 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:46:04,457 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:46:04,458 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:46:04,458 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:46:04,458 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:00" (3/4) ... [2023-11-12 00:46:04,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:46:04,481 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 110 nodes and edges [2023-11-12 00:46:04,491 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-12 00:46:04,493 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-12 00:46:04,495 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:46:04,719 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:46:04,720 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:46:04,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:46:04,721 INFO L158 Benchmark]: Toolchain (without parser) took 6880.90ms. Allocated memory was 153.1MB in the beginning and 222.3MB in the end (delta: 69.2MB). Free memory was 120.9MB in the beginning and 168.5MB in the end (delta: -47.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:46:04,721 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:46:04,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.48ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 92.3MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-12 00:46:04,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.48ms. Allocated memory is still 153.1MB. Free memory was 92.3MB in the beginning and 86.9MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:46:04,722 INFO L158 Benchmark]: Boogie Preprocessor took 105.99ms. Allocated memory is still 153.1MB. Free memory was 86.9MB in the beginning and 82.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:46:04,723 INFO L158 Benchmark]: RCFGBuilder took 1725.75ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 81.9MB in the beginning and 93.3MB in the end (delta: -11.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2023-11-12 00:46:04,724 INFO L158 Benchmark]: TraceAbstraction took 4064.97ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 93.3MB in the beginning and 181.1MB in the end (delta: -87.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2023-11-12 00:46:04,724 INFO L158 Benchmark]: Witness Printer took 262.83ms. Allocated memory is still 222.3MB. Free memory was 181.1MB in the beginning and 168.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:46:04,727 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.48ms. Allocated memory is still 153.1MB. Free memory was 120.9MB in the beginning and 92.3MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.48ms. Allocated memory is still 153.1MB. Free memory was 92.3MB in the beginning and 86.9MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.99ms. Allocated memory is still 153.1MB. Free memory was 86.9MB in the beginning and 82.6MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1725.75ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 81.9MB in the beginning and 93.3MB in the end (delta: -11.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4064.97ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 93.3MB in the beginning and 181.1MB in the end (delta: -87.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * Witness Printer took 262.83ms. Allocated memory is still 222.3MB. Free memory was 181.1MB in the beginning and 168.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 444]: 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: 4.0s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 344 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1031 IncrementalHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 145 mSDtfsCounter, 1031 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=500occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 71 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 13 NumberOfFragments, 14 HoareAnnotationTreeSize, 1 FomulaSimplifications, 129 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 484 NumberOfCodeBlocks, 484 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 771 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 179/179 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: (((a16 < 6) || ((a21 == 1) && (15 <= a8))) || (a20 == 1)) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:46:04,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb45c69-8c4d-4e45-aa71-fa391d669abe/bin/utaipan-verify-NcY6lQBIFX/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