./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E --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 e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:00:48,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:00:48,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:00:48,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:00:48,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:00:48,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:00:48,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:00:48,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:00:48,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:00:48,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:00:48,434 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:00:48,434 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:00:48,434 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:00:48,434 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:00:48,434 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:00:48,434 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:00:48,435 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:00:48,435 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:00:48,435 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:00:48,435 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:00:48,435 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:00:48,436 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:00:48,436 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:00:48,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:00:48,436 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:00:48,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:00:48,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:00:48,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:00:48,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:00:48,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:00:48,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:00:48,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:00:48,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:00:48,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:00:48,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:00:48,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:00:48,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:00:48,439 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:00:48,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:00:48,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:00:48,439 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:00:48,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:00:48,440 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 [2024-11-14 03:00:48,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:00:48,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:00:48,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:00:48,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:00:48,801 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:00:48,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c Unable to find full path for "g++" [2024-11-14 03:00:50,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:00:51,125 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:00:51,126 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2024-11-14 03:00:51,135 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/data/fe083cb7c/f48bc7d7660a4f5b9e55bb87db28be8a/FLAGfd9ef5b22 [2024-11-14 03:00:51,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/data/fe083cb7c/f48bc7d7660a4f5b9e55bb87db28be8a [2024-11-14 03:00:51,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:00:51,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:00:51,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:00:51,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:00:51,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:00:51,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b6a264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51, skipping insertion in model container [2024-11-14 03:00:51,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:00:51,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:00:51,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:00:51,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:00:51,448 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:00:51,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51 WrapperNode [2024-11-14 03:00:51,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:00:51,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:00:51,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:00:51,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:00:51,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,504 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 17, calls inlined = 29, statements flattened = 355 [2024-11-14 03:00:51,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:00:51,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:00:51,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:00:51,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:00:51,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:00:51,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:00:51,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:00:51,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:00:51,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:00:51,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:00:51,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:00:51,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:00:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:00:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-14 03:00:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-14 03:00:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-14 03:00:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-14 03:00:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-14 03:00:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-14 03:00:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:00:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:00:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:00:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:00:51,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:00:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:00:51,655 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 03:00:51,810 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:00:51,813 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:00:52,791 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 03:00:52,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:00:53,236 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:00:53,239 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-14 03:00:53,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:00:53 BoogieIcfgContainer [2024-11-14 03:00:53,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:00:53,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:00:53,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:00:53,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:00:53,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:00:51" (1/3) ... [2024-11-14 03:00:53,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7287cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:00:53, skipping insertion in model container [2024-11-14 03:00:53,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51" (2/3) ... [2024-11-14 03:00:53,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7287cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:00:53, skipping insertion in model container [2024-11-14 03:00:53,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:00:53" (3/3) ... [2024-11-14 03:00:53,254 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2024-11-14 03:00:53,274 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:00:53,278 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum.wvr.c that has 4 procedures, 143 locations, 1 initial locations, 5 loop locations, and 46 error locations. [2024-11-14 03:00:53,278 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 03:00:53,476 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-14 03:00:53,530 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 152 places, 159 transitions, 339 flow [2024-11-14 03:00:58,761 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 136124 states, 132746 states have (on average 3.870564838111883) internal successors, (513802), 136123 states have internal predecessors, (513802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:58,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:00:58,797 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7784f8f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:00:58,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-11-14 03:00:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 136124 states, 132746 states have (on average 3.870564838111883) internal successors, (513802), 136123 states have internal predecessors, (513802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:00:59,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:00:59,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:59,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:00:59,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-14 03:00:59,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1107664, now seen corresponding path program 1 times [2024-11-14 03:00:59,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:59,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034268945] [2024-11-14 03:00:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:59,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:00:59,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:59,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034268945] [2024-11-14 03:00:59,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034268945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:00:59,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:00:59,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:00:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149550326] [2024-11-14 03:00:59,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:00:59,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:00:59,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:59,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:00:59,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:00:59,857 INFO L87 Difference]: Start difference. First operand has 136124 states, 132746 states have (on average 3.870564838111883) internal successors, (513802), 136123 states have internal predecessors, (513802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:03,365 INFO L93 Difference]: Finished difference Result 136134 states and 513814 transitions. [2024-11-14 03:01:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:01:03,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 03:01:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:05,404 INFO L225 Difference]: With dead ends: 136134 [2024-11-14 03:01:05,404 INFO L226 Difference]: Without dead ends: 136130 [2024-11-14 03:01:05,465 INFO L431 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 [2024-11-14 03:01:05,469 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 6 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:05,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 277 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:01:05,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136130 states. [2024-11-14 03:01:11,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136130 to 136130. [2024-11-14 03:01:11,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136130 states, 132752 states have (on average 3.870450162709413) internal successors, (513810), 136129 states have internal predecessors, (513810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:13,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136130 states to 136130 states and 513810 transitions. [2024-11-14 03:01:13,796 INFO L78 Accepts]: Start accepts. Automaton has 136130 states and 513810 transitions. Word has length 3 [2024-11-14 03:01:13,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:13,797 INFO L471 AbstractCegarLoop]: Abstraction has 136130 states and 513810 transitions. [2024-11-14 03:01:13,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:13,797 INFO L276 IsEmpty]: Start isEmpty. Operand 136130 states and 513810 transitions. [2024-11-14 03:01:13,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:01:13,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:13,798 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-11-14 03:01:13,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:01:13,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-14 03:01:13,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1360106770, now seen corresponding path program 1 times [2024-11-14 03:01:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:13,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890707434] [2024-11-14 03:01:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:14,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:14,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890707434] [2024-11-14 03:01:14,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890707434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:01:14,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29081680] [2024-11-14 03:01:14,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:14,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:14,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:14,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:01:14,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:01:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:14,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:01:14,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:14,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:14,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29081680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:14,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:01:14,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-14 03:01:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981159540] [2024-11-14 03:01:14,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:14,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:01:14,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:14,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:01:14,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:14,278 INFO L87 Difference]: Start difference. First operand 136130 states and 513810 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2024-11-14 03:01:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:17,095 INFO L93 Difference]: Finished difference Result 136130 states and 513810 transitions. [2024-11-14 03:01:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:01:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2024-11-14 03:01:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:18,219 INFO L225 Difference]: With dead ends: 136130 [2024-11-14 03:01:18,219 INFO L226 Difference]: Without dead ends: 136128 [2024-11-14 03:01:18,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:01:18,262 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 15 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:18,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 445 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:01:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136128 states. [2024-11-14 03:01:22,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136128 to 136128. [2024-11-14 03:01:22,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136128 states, 132752 states have (on average 3.8704350970230204) internal successors, (513808), 136127 states have internal predecessors, (513808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136128 states to 136128 states and 513808 transitions. [2024-11-14 03:01:24,535 INFO L78 Accepts]: Start accepts. Automaton has 136128 states and 513808 transitions. Word has length 6 [2024-11-14 03:01:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:24,536 INFO L471 AbstractCegarLoop]: Abstraction has 136128 states and 513808 transitions. [2024-11-14 03:01:24,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2024-11-14 03:01:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 136128 states and 513808 transitions. [2024-11-14 03:01:24,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 03:01:24,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:24,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-11-14 03:01:24,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:01:24,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:24,738 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-14 03:01:24,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:24,739 INFO L85 PathProgramCache]: Analyzing trace with hash 786364312, now seen corresponding path program 1 times [2024-11-14 03:01:24,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:24,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648118028] [2024-11-14 03:01:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:24,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:24,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:24,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648118028] [2024-11-14 03:01:24,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648118028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:01:24,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141092909] [2024-11-14 03:01:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:24,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:24,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:01:24,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:01:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:25,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:01:25,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:25,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:01:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:25,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141092909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:01:25,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [993503343] [2024-11-14 03:01:25,130 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 03:01:25,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:01:25,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-14 03:01:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564123022] [2024-11-14 03:01:25,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:01:25,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:01:25,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:01:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:25,138 INFO L87 Difference]: Start difference. First operand 136128 states and 513808 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:27,286 INFO L93 Difference]: Finished difference Result 136148 states and 513838 transitions. [2024-11-14 03:01:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:01:27,287 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 03:01:27,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:29,104 INFO L225 Difference]: With dead ends: 136148 [2024-11-14 03:01:29,104 INFO L226 Difference]: Without dead ends: 136146 [2024-11-14 03:01:29,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:01:29,127 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 38 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:29,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 362 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:01:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136146 states. [2024-11-14 03:01:32,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136146 to 136146. [2024-11-14 03:01:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136146 states, 132770 states have (on average 3.8700911350455676) internal successors, (513832), 136145 states have internal predecessors, (513832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:33,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136146 states to 136146 states and 513832 transitions. [2024-11-14 03:01:33,997 INFO L78 Accepts]: Start accepts. Automaton has 136146 states and 513832 transitions. Word has length 7 [2024-11-14 03:01:33,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:33,997 INFO L471 AbstractCegarLoop]: Abstraction has 136146 states and 513832 transitions. [2024-11-14 03:01:33,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 136146 states and 513832 transitions. [2024-11-14 03:01:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 03:01:33,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:33,999 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:34,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:01:34,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc82087-9e5b-4c67-9998-4112800a2f1a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:34,204 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-14 03:01:34,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash 780144554, now seen corresponding path program 1 times [2024-11-14 03:01:34,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:34,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769801177] [2024-11-14 03:01:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:34,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:34,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:34,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769801177] [2024-11-14 03:01:34,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769801177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:34,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:34,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:34,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678569429] [2024-11-14 03:01:34,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:34,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:01:34,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:34,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:01:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:34,362 INFO L87 Difference]: Start difference. First operand 136146 states and 513832 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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)