./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:19:11,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:19:11,444 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-24 23:19:11,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:19:11,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:19:11,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:19:11,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:19:11,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:19:11,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:19:11,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:19:11,509 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:19:11,510 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:19:11,511 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:19:11,512 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:19:11,513 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:19:11,513 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:19:11,513 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:19:11,514 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:19:11,515 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:19:11,515 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:19:11,515 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:19:11,516 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:19:11,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:19:11,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:19:11,518 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:19:11,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:19:11,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:19:11,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:19:11,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:19:11,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:19:11,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:19:11,521 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:19:11,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:19:11,522 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:19:11,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:19:11,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:19:11,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:19:11,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:19:11,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:19:11,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:11,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:19:11,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:19:11,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:19:11,524 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:19:11,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:19:11,525 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:19:11,525 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:19:11,525 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:19:11,526 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:19:11,526 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_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 [2023-11-24 23:19:11,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:19:11,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:19:11,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:19:11,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:19:11,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:19:11,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-lit/qw2004-2b.i [2023-11-24 23:19:15,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:19:15,362 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:19:15,363 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/sv-benchmarks/c/pthread-lit/qw2004-2b.i [2023-11-24 23:19:15,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/data/aa066d0db/45f795464bff448e906852a4c120bdac/FLAG0e4b97d8d [2023-11-24 23:19:15,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/data/aa066d0db/45f795464bff448e906852a4c120bdac [2023-11-24 23:19:15,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:19:15,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:19:15,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:15,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:19:15,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:19:15,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:15" (1/1) ... [2023-11-24 23:19:15,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a77984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:15, skipping insertion in model container [2023-11-24 23:19:15,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:15" (1/1) ... [2023-11-24 23:19:15,503 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:19:15,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:15,900 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:19:15,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:16,000 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:19:16,000 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:19:16,008 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:19:16,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16 WrapperNode [2023-11-24 23:19:16,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:16,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:16,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:19:16,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:19:16,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,061 INFO L138 Inliner]: procedures = 175, calls = 37, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 127 [2023-11-24 23:19:16,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:16,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:19:16,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:19:16,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:19:16,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:19:16,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:19:16,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:19:16,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:19:16,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (1/1) ... [2023-11-24 23:19:16,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:16,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:16,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:19:16,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:19:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-11-24 23:19:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-11-24 23:19:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:19:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 23:19:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:19:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:19:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:19:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:19:16,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 23:19:16,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:19:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:19:16,188 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:19:16,354 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:19:16,357 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:16,610 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:16,829 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:16,829 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:19:16,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:16 BoogieIcfgContainer [2023-11-24 23:19:16,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:16,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:16,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:16,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:16,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:19:15" (1/3) ... [2023-11-24 23:19:16,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dffdfce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:16, skipping insertion in model container [2023-11-24 23:19:16,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:16" (2/3) ... [2023-11-24 23:19:16,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dffdfce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:16, skipping insertion in model container [2023-11-24 23:19:16,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:16" (3/3) ... [2023-11-24 23:19:16,842 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2023-11-24 23:19:16,851 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:19:16,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:16,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-24 23:19:16,863 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:19:16,911 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 23:19:16,941 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 86 flow [2023-11-24 23:19:16,983 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 272 states, 258 states have (on average 2.1627906976744184) internal successors, (558), 271 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:17,018 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;@ad9fdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:17,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-24 23:19:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 272 states, 258 states have (on average 2.1627906976744184) internal successors, (558), 271 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:19:17,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:17,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:19:17,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:19:17,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:17,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1372518427, now seen corresponding path program 1 times [2023-11-24 23:19:17,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:17,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203606457] [2023-11-24 23:19:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:17,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:17,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:17,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203606457] [2023-11-24 23:19:17,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203606457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:17,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:17,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:19:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596414497] [2023-11-24 23:19:17,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:17,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:17,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:17,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:17,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:17,447 INFO L87 Difference]: Start difference. First operand has 272 states, 258 states have (on average 2.1627906976744184) internal successors, (558), 271 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:17,552 INFO L93 Difference]: Finished difference Result 311 states and 627 transitions. [2023-11-24 23:19:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:17,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-24 23:19:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:17,569 INFO L225 Difference]: With dead ends: 311 [2023-11-24 23:19:17,569 INFO L226 Difference]: Without dead ends: 311 [2023-11-24 23:19:17,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:17,575 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:17,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 41 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:17,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-24 23:19:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 296. [2023-11-24 23:19:17,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 284 states have (on average 2.158450704225352) internal successors, (613), 295 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 613 transitions. [2023-11-24 23:19:17,675 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 613 transitions. Word has length 6 [2023-11-24 23:19:17,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:17,675 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 613 transitions. [2023-11-24 23:19:17,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 613 transitions. [2023-11-24 23:19:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:19:17,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:17,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:19:17,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:19:17,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:19:17,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1372518428, now seen corresponding path program 1 times [2023-11-24 23:19:17,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:17,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200286101] [2023-11-24 23:19:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:17,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:17,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:17,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200286101] [2023-11-24 23:19:17,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200286101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:17,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:17,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:19:17,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024786377] [2023-11-24 23:19:17,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:17,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:17,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:17,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:17,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:17,800 INFO L87 Difference]: Start difference. First operand 296 states and 613 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:17,870 INFO L93 Difference]: Finished difference Result 354 states and 733 transitions. [2023-11-24 23:19:17,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:17,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-24 23:19:17,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:17,875 INFO L225 Difference]: With dead ends: 354 [2023-11-24 23:19:17,875 INFO L226 Difference]: Without dead ends: 354 [2023-11-24 23:19:17,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:17,877 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:17,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-24 23:19:17,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-11-24 23:19:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 346 states have (on average 2.1184971098265897) internal successors, (733), 353 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 733 transitions. [2023-11-24 23:19:17,911 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 733 transitions. Word has length 6 [2023-11-24 23:19:17,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:17,912 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 733 transitions. [2023-11-24 23:19:17,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:17,912 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 733 transitions. [2023-11-24 23:19:17,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:19:17,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:17,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:17,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:19:17,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:19:17,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:17,922 INFO L85 PathProgramCache]: Analyzing trace with hash -428759309, now seen corresponding path program 1 times [2023-11-24 23:19:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:17,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431321005] [2023-11-24 23:19:17,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:17,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:17,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:17,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431321005] [2023-11-24 23:19:17,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431321005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:17,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:17,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:19:17,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248227045] [2023-11-24 23:19:17,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:17,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:19:17,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:17,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:19:17,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:19:17,998 INFO L87 Difference]: Start difference. First operand 354 states and 733 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:18,168 INFO L93 Difference]: Finished difference Result 433 states and 894 transitions. [2023-11-24 23:19:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:19:18,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-24 23:19:18,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:18,173 INFO L225 Difference]: With dead ends: 433 [2023-11-24 23:19:18,173 INFO L226 Difference]: Without dead ends: 433 [2023-11-24 23:19:18,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:19:18,182 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 57 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:18,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 80 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-24 23:19:18,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 410. [2023-11-24 23:19:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 403 states have (on average 2.138957816377171) internal successors, (862), 409 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 862 transitions. [2023-11-24 23:19:18,224 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 862 transitions. Word has length 7 [2023-11-24 23:19:18,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:18,225 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 862 transitions. [2023-11-24 23:19:18,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,226 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 862 transitions. [2023-11-24 23:19:18,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:19:18,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:18,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:18,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:19:18,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:19:18,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:18,230 INFO L85 PathProgramCache]: Analyzing trace with hash -428759308, now seen corresponding path program 1 times [2023-11-24 23:19:18,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:18,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285726062] [2023-11-24 23:19:18,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:18,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:18,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:18,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285726062] [2023-11-24 23:19:18,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285726062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:18,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:18,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:19:18,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694982288] [2023-11-24 23:19:18,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:18,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:19:18,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:18,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:19:18,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:19:18,325 INFO L87 Difference]: Start difference. First operand 410 states and 862 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:18,404 INFO L93 Difference]: Finished difference Result 397 states and 827 transitions. [2023-11-24 23:19:18,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:19:18,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-24 23:19:18,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:18,408 INFO L225 Difference]: With dead ends: 397 [2023-11-24 23:19:18,408 INFO L226 Difference]: Without dead ends: 397 [2023-11-24 23:19:18,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:19:18,410 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:18,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 54 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:18,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-11-24 23:19:18,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2023-11-24 23:19:18,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 391 states have (on average 2.1150895140664963) internal successors, (827), 396 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 827 transitions. [2023-11-24 23:19:18,428 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 827 transitions. Word has length 7 [2023-11-24 23:19:18,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:18,428 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 827 transitions. [2023-11-24 23:19:18,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,429 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 827 transitions. [2023-11-24 23:19:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:19:18,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:18,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:18,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:19:18,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:19:18,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:18,432 INFO L85 PathProgramCache]: Analyzing trace with hash -646092430, now seen corresponding path program 1 times [2023-11-24 23:19:18,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:18,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125828276] [2023-11-24 23:19:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:18,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:18,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:18,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125828276] [2023-11-24 23:19:18,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125828276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:18,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:18,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:19:18,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169283378] [2023-11-24 23:19:18,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:18,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:19:18,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:19:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:19:18,499 INFO L87 Difference]: Start difference. First operand 397 states and 827 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:18,585 INFO L93 Difference]: Finished difference Result 419 states and 871 transitions. [2023-11-24 23:19:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:19:18,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-24 23:19:18,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:18,589 INFO L225 Difference]: With dead ends: 419 [2023-11-24 23:19:18,589 INFO L226 Difference]: Without dead ends: 419 [2023-11-24 23:19:18,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:19:18,590 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 47 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:18,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 62 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:18,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-24 23:19:18,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 408. [2023-11-24 23:19:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 402 states have (on average 2.111940298507463) internal successors, (849), 407 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 849 transitions. [2023-11-24 23:19:18,633 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 849 transitions. Word has length 11 [2023-11-24 23:19:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:18,633 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 849 transitions. [2023-11-24 23:19:18,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 849 transitions. [2023-11-24 23:19:18,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:19:18,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:18,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:18,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:19:18,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:19:18,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash 340356560, now seen corresponding path program 2 times [2023-11-24 23:19:18,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:18,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715323569] [2023-11-24 23:19:18,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:18,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:18,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:18,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715323569] [2023-11-24 23:19:18,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715323569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:18,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:18,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:18,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306020363] [2023-11-24 23:19:18,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:18,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:19:18,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:18,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:19:18,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:19:18,715 INFO L87 Difference]: Start difference. First operand 408 states and 849 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:18,804 INFO L93 Difference]: Finished difference Result 445 states and 922 transitions. [2023-11-24 23:19:18,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:19:18,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-24 23:19:18,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:18,807 INFO L225 Difference]: With dead ends: 445 [2023-11-24 23:19:18,807 INFO L226 Difference]: Without dead ends: 373 [2023-11-24 23:19:18,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:19:18,809 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 85 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:18,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 51 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:18,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-24 23:19:18,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 212. [2023-11-24 23:19:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 209 states have (on average 2.0717703349282295) internal successors, (433), 211 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 433 transitions. [2023-11-24 23:19:18,822 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 433 transitions. Word has length 11 [2023-11-24 23:19:18,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:18,822 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 433 transitions. [2023-11-24 23:19:18,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,823 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 433 transitions. [2023-11-24 23:19:18,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:19:18,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:18,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:18,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:19:18,825 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:19:18,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash 340388539, now seen corresponding path program 1 times [2023-11-24 23:19:18,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:18,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133501994] [2023-11-24 23:19:18,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:18,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:18,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:18,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133501994] [2023-11-24 23:19:18,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133501994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:18,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:18,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:18,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920551353] [2023-11-24 23:19:18,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:18,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:19:18,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:18,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:19:18,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:19:18,894 INFO L87 Difference]: Start difference. First operand 212 states and 433 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:18,975 INFO L93 Difference]: Finished difference Result 252 states and 513 transitions. [2023-11-24 23:19:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:19:18,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-24 23:19:18,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:18,976 INFO L225 Difference]: With dead ends: 252 [2023-11-24 23:19:18,976 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:19:18,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:19:18,978 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 71 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:18,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 74 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:19:18,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:19:18,979 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) [2023-11-24 23:19:18,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:19:18,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-24 23:19:18,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:18,979 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:19:18,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:19:18,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:19:18,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:19:18,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-11-24 23:19:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-11-24 23:19:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-11-24 23:19:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-11-24 23:19:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2023-11-24 23:19:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-11-24 23:19:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2023-11-24 23:19:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-11-24 23:19:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-11-24 23:19:18,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:19:18,988 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-24 23:19:18,993 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 23:19:18,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:19:18,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:19:18 BasicIcfg [2023-11-24 23:19:18,996 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:19:18,997 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:19:18,997 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:19:18,997 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:19:18,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:16" (3/4) ... [2023-11-24 23:19:18,999 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:19:19,001 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure BCSP_PnpStop [2023-11-24 23:19:19,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2023-11-24 23:19:19,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-24 23:19:19,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 23:19:19,009 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 23:19:19,093 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:19:19,094 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:19:19,094 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:19:19,095 INFO L158 Benchmark]: Toolchain (without parser) took 3680.31ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 112.3MB in the beginning and 111.6MB in the end (delta: 678.7kB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2023-11-24 23:19:19,095 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:19,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.63ms. Allocated memory is still 157.3MB. Free memory was 111.9MB in the beginning and 91.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 23:19:19,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.32ms. Allocated memory is still 157.3MB. Free memory was 91.9MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:19:19,096 INFO L158 Benchmark]: Boogie Preprocessor took 38.74ms. Allocated memory is still 157.3MB. Free memory was 89.7MB in the beginning and 88.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:19:19,096 INFO L158 Benchmark]: RCFGBuilder took 728.76ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 103.4MB in the end (delta: -15.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-24 23:19:19,097 INFO L158 Benchmark]: TraceAbstraction took 2162.65ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 102.5MB in the beginning and 116.9MB in the end (delta: -14.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-11-24 23:19:19,097 INFO L158 Benchmark]: Witness Printer took 97.67ms. Allocated memory is still 188.7MB. Free memory was 116.9MB in the beginning and 111.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:19:19,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.63ms. Allocated memory is still 157.3MB. Free memory was 111.9MB in the beginning and 91.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.32ms. Allocated memory is still 157.3MB. Free memory was 91.9MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.74ms. Allocated memory is still 157.3MB. Free memory was 89.7MB in the beginning and 88.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 728.76ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 103.4MB in the end (delta: -15.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2162.65ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 102.5MB in the beginning and 116.9MB in the end (delta: -14.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 97.67ms. Allocated memory is still 188.7MB. Free memory was 116.9MB in the beginning and 111.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 54 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 375 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 375 mSDsluCounter, 392 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 209 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 449 IncrementalHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 183 mSDtfsCounter, 449 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=3, InterpolantAutomatonStates: 32, 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, 210 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-24 23:19:19,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15672b0b-e430-442e-b26d-bfe468d8d59e/bin/utaipan-verify-SwPr7d2a91/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