./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/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_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:40:06,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:40:06,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:40:06,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:40:06,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:40:06,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:40:06,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:40:06,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:40:06,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:40:06,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:40:06,913 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:40:06,913 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:40:06,914 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:40:06,914 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:40:06,914 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:40:06,914 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:40:06,914 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:40:06,914 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:40:06,915 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:40:06,915 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:40:06,915 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:40:06,915 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:40:06,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:40:06,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:40:06,916 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:40:06,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:40:06,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:40:06,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:40:06,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:40:06,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:40:06,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:40:06,917 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:40:06,917 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:40:06,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:40:06,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:40:06,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:40:06,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:40:06,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:40:06,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:40:06,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:40:06,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:40:06,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:40:06,919 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:40:06,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:40:06,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:40:06,920 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:40:06,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:40:06,920 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_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 [2024-11-14 05:40:07,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:40:07,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:40:07,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:40:07,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:40:07,320 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:40:07,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i Unable to find full path for "g++" [2024-11-14 05:40:09,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:40:09,892 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:40:09,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2024-11-14 05:40:09,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data/d436cf97a/15d8f028279848248f76bd868c680d07/FLAG2ec04d288 [2024-11-14 05:40:09,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data/d436cf97a/15d8f028279848248f76bd868c680d07 [2024-11-14 05:40:09,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:40:09,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:40:09,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:40:09,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:40:09,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:40:09,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:09" (1/1) ... [2024-11-14 05:40:09,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b724104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:09, skipping insertion in model container [2024-11-14 05:40:09,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:09" (1/1) ... [2024-11-14 05:40:09,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:40:10,162 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-14 05:40:10,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:40:10,217 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:40:10,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-14 05:40:10,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:40:10,274 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:40:10,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10 WrapperNode [2024-11-14 05:40:10,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:40:10,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:40:10,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:40:10,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:40:10,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,322 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2024-11-14 05:40:10,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:40:10,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:40:10,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:40:10,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:40:10,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:40:10,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:40:10,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:40:10,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:40:10,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (1/1) ... [2024-11-14 05:40:10,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:40:10,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:40:10,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:40:10,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:40:10,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:40:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:40:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:40:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:40:10,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:40:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:40:10,549 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:40:10,550 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:40:10,749 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-14 05:40:10,750 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:40:10,841 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:40:10,842 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:40:10,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:10 BoogieIcfgContainer [2024-11-14 05:40:10,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:40:10,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:40:10,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:40:10,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:40:10,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:40:09" (1/3) ... [2024-11-14 05:40:10,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5d890e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:10, skipping insertion in model container [2024-11-14 05:40:10,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:10" (2/3) ... [2024-11-14 05:40:10,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5d890e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:10, skipping insertion in model container [2024-11-14 05:40:10,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:10" (3/3) ... [2024-11-14 05:40:10,854 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-49.i [2024-11-14 05:40:10,870 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:40:10,872 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-49.i that has 2 procedures, 22 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:40:10,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:40:10,940 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;@701b6f3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:40:10,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:40:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:40:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 05:40:10,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:10,959 INFO L215 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:10,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:10,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1567702311, now seen corresponding path program 1 times [2024-11-14 05:40:10,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:40:10,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198400490] [2024-11-14 05:40:10,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:10,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:40:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:40:11,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:40:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:40:11,197 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:40:11,199 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:40:11,201 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:40:11,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:40:11,209 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:40:11,242 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:40:11,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:40:11 BoogieIcfgContainer [2024-11-14 05:40:11,246 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:40:11,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:40:11,247 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:40:11,247 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:40:11,248 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:10" (3/4) ... [2024-11-14 05:40:11,250 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:40:11,251 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:40:11,252 INFO L158 Benchmark]: Toolchain (without parser) took 1327.15ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 46.1MB in the end (delta: 46.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 05:40:11,254 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:40:11,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.94ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:40:11,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.78ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:40:11,257 INFO L158 Benchmark]: Boogie Preprocessor took 29.64ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:40:11,257 INFO L158 Benchmark]: RCFGBuilder took 486.92ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 64.3MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:40:11,257 INFO L158 Benchmark]: TraceAbstraction took 400.91ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 46.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:40:11,258 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 117.4MB. Free memory was 46.3MB in the beginning and 46.1MB in the end (delta: 252.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:40:11,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.94ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.78ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.64ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 486.92ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 64.3MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 400.91ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 46.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 117.4MB. Free memory was 46.3MB in the beginning and 46.1MB in the end (delta: 252.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 56, overapproximation of someBinaryFLOATComparisonOperation at line 35, overapproximation of someUnaryFLOAToperation at line 35. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 0.25; [L23] signed long int var_1_2 = 64; [L24] signed long int var_1_3 = -1; [L25] signed long int var_1_4 = -256; [L26] float var_1_5 = 3.5; [L27] float var_1_6 = 32.5; [L65] isInitial = 1 [L66] FCALL initially() [L67] COND TRUE 1 [L68] FCALL updateLastVariables() [L69] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_long() [L45] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L46] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L47] var_1_3 = __VERIFIER_nondet_long() [L48] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L49] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L50] var_1_4 = __VERIFIER_nondet_long() [L51] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L52] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L53] var_1_5 = __VERIFIER_nondet_float() [L54] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0, var_1_6=65/2] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0, var_1_6=65/2] [L55] var_1_6 = __VERIFIER_nondet_float() [L56] CALL assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1/4, var_1_2=1, var_1_3=0, var_1_4=0] [L69] RET updateVariables() [L70] CALL step() [L31] signed long int stepLocal_1 = var_1_2; [L32] signed long int stepLocal_0 = var_1_2; [L33] COND TRUE -100000 <= stepLocal_1 [L34] COND FALSE !(stepLocal_0 <= (var_1_3 + var_1_4)) [L37] var_1_1 = ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))) [L70] RET step() [L71] CALL, EXPR property() [L61-L62] return (-100000 <= var_1_2) ? ((var_1_2 <= (var_1_3 + var_1_4)) ? (var_1_1 == ((float) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) : (var_1_1 == ((float) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : (var_1_1 == ((float) var_1_6)) ; [L71] RET, EXPR property() [L71] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=69, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=69, var_1_6=69] [L19] reach_error() VAL [isInitial=1, var_1_1=69, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=69, var_1_6=69] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:40:11,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/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_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:40:14,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:40:14,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:40:14,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:40:14,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:40:14,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:40:14,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:40:14,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:40:14,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:40:14,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:40:14,719 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:40:14,719 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:40:14,719 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:40:14,720 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:40:14,720 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:40:14,720 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:40:14,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:40:14,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:40:14,721 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:40:14,722 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:40:14,722 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:40:14,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:40:14,722 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:40:14,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:40:14,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:40:14,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:40:14,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:40:14,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:40:14,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:40:14,730 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:40:14,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:40:14,730 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:40:14,730 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:14,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:40:14,730 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:40:14,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 [2024-11-14 05:40:15,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:40:15,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:40:15,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:40:15,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:40:15,142 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:40:15,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i Unable to find full path for "g++" [2024-11-14 05:40:17,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:40:17,676 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:40:17,677 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2024-11-14 05:40:17,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data/fc2fba0c9/7a1d9446aa5f45d6aa175d27011f184e/FLAG716560434 [2024-11-14 05:40:17,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/data/fc2fba0c9/7a1d9446aa5f45d6aa175d27011f184e [2024-11-14 05:40:17,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:40:17,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:40:17,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:40:17,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:40:17,720 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:40:17,721 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:17" (1/1) ... [2024-11-14 05:40:17,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a96cf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:17, skipping insertion in model container [2024-11-14 05:40:17,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:17" (1/1) ... [2024-11-14 05:40:17,741 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:40:17,947 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-14 05:40:17,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:40:18,019 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:40:18,036 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-14 05:40:18,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:40:18,100 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:40:18,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18 WrapperNode [2024-11-14 05:40:18,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:40:18,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:40:18,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:40:18,104 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:40:18,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,153 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 69 [2024-11-14 05:40:18,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:40:18,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:40:18,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:40:18,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:40:18,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:40:18,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:40:18,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:40:18,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:40:18,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (1/1) ... [2024-11-14 05:40:18,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:40:18,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:40:18,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:40:18,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:40:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:40:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:40:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:40:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:40:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:40:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:40:18,400 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:40:18,402 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:40:18,587 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-14 05:40:18,587 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:40:18,597 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:40:18,598 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:40:18,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:18 BoogieIcfgContainer [2024-11-14 05:40:18,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:40:18,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:40:18,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:40:18,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:40:18,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:40:17" (1/3) ... [2024-11-14 05:40:18,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8dd1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:18, skipping insertion in model container [2024-11-14 05:40:18,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:18" (2/3) ... [2024-11-14 05:40:18,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8dd1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:18, skipping insertion in model container [2024-11-14 05:40:18,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:18" (3/3) ... [2024-11-14 05:40:18,610 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-49.i [2024-11-14 05:40:18,626 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:40:18,628 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-49.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:40:18,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:40:18,699 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;@60ce280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:40:18,699 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:40:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:40:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 05:40:18,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:18,713 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:18,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:18,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash 426499891, now seen corresponding path program 1 times [2024-11-14 05:40:18,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:18,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653331679] [2024-11-14 05:40:18,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:18,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:18,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:18,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:18,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:40:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:18,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:40:18,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-14 05:40:18,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:18,959 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:18,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653331679] [2024-11-14 05:40:18,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653331679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:18,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:40:18,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116640297] [2024-11-14 05:40:18,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:18,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:40:18,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:18,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:40:18,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:40:18,990 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 05:40:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:19,010 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2024-11-14 05:40:19,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:40:19,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-14 05:40:19,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:19,017 INFO L225 Difference]: With dead ends: 61 [2024-11-14 05:40:19,017 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 05:40:19,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:40:19,023 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:19,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:40:19,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 05:40:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-14 05:40:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:40:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-11-14 05:40:19,060 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 55 [2024-11-14 05:40:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:19,060 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-11-14 05:40:19,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 05:40:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-14 05:40:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 05:40:19,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:19,064 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:19,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:40:19,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:19,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:19,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:19,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2007471369, now seen corresponding path program 1 times [2024-11-14 05:40:19,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:19,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886968368] [2024-11-14 05:40:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:19,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:19,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:19,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:19,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:40:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:19,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:40:19,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-14 05:40:24,392 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:24,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:24,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886968368] [2024-11-14 05:40:24,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886968368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:24,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:24,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 05:40:24,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423061252] [2024-11-14 05:40:24,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:24,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 05:40:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 05:40:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:40:24,396 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-14 05:40:25,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:25,337 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-11-14 05:40:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 05:40:25,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2024-11-14 05:40:25,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:25,339 INFO L225 Difference]: With dead ends: 44 [2024-11-14 05:40:25,339 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:40:25,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-14 05:40:25,341 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 43 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:25,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 120 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:40:25,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:40:25,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2024-11-14 05:40:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:40:25,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-11-14 05:40:25,352 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 55 [2024-11-14 05:40:25,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:25,352 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-11-14 05:40:25,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-14 05:40:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-11-14 05:40:25,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:40:25,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:25,354 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:25,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:40:25,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:25,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:25,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1957336667, now seen corresponding path program 1 times [2024-11-14 05:40:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:25,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274591450] [2024-11-14 05:40:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:25,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:25,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:25,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:25,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:40:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:25,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:40:25,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:28,154 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 05:40:28,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-14 05:40:38,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:38,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274591450] [2024-11-14 05:40:38,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274591450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:40:38,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [963985377] [2024-11-14 05:40:38,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:38,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:38,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:40:38,626 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:40:38,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 05:40:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:39,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:40:39,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 05:40:41,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:46,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [963985377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:40:46,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960364637] [2024-11-14 05:40:46,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:46,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:40:46,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:40:46,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:40:46,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:40:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:46,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:40:46,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-14 05:40:47,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:40:52,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960364637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:40:52,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2024-11-14 05:40:52,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 25 [2024-11-14 05:40:52,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705582785] [2024-11-14 05:40:52,852 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2024-11-14 05:40:52,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 05:40:52,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:52,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 05:40:52,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2024-11-14 05:40:52,855 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-14 05:40:54,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:54,832 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2024-11-14 05:40:54,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:40:54,834 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 56 [2024-11-14 05:40:54,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:54,835 INFO L225 Difference]: With dead ends: 49 [2024-11-14 05:40:54,835 INFO L226 Difference]: Without dead ends: 47 [2024-11-14 05:40:54,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 210 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=196, Invalid=734, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:40:54,836 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 45 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:54,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 223 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 05:40:54,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-14 05:40:54,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2024-11-14 05:40:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:40:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2024-11-14 05:40:54,850 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 56 [2024-11-14 05:40:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:54,850 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2024-11-14 05:40:54,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-14 05:40:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2024-11-14 05:40:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:40:54,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:54,856 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:54,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:40:55,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:40:55,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-14 05:40:55,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:40:55,458 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:55,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1959183709, now seen corresponding path program 1 times [2024-11-14 05:40:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:40:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524584202] [2024-11-14 05:40:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:55,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:55,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:40:55,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:40:55,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 05:40:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:55,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:40:55,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:40:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 05:40:57,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:40:57,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:40:57,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524584202] [2024-11-14 05:40:57,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524584202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:57,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:57,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-14 05:40:57,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497860309] [2024-11-14 05:40:57,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:57,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:40:57,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:40:57,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:40:57,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:40:57,536 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 05:40:58,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:58,828 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-11-14 05:40:58,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:40:58,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-11-14 05:40:58,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:58,830 INFO L225 Difference]: With dead ends: 44 [2024-11-14 05:40:58,830 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:40:58,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:40:58,832 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 34 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:58,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 133 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:40:58,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:40:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:40:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:40:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:40:58,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2024-11-14 05:40:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:58,833 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:40:58,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 05:40:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:40:58,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:40:58,837 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:40:58,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-14 05:40:59,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:40:59,041 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-14 05:40:59,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:41:01,217 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:41:01,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 05:41:01,242 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,242 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 05:41:01,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 05:41:01,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:41:01,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 05:41:01,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:41:01 BoogieIcfgContainer [2024-11-14 05:41:01,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:41:01,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:41:01,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:41:01,252 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:41:01,253 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:18" (3/4) ... [2024-11-14 05:41:01,256 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:41:01,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 05:41:01,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-14 05:41:01,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 05:41:01,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:41:01,266 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:41:01,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:41:01,372 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:41:01,373 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:41:01,374 INFO L158 Benchmark]: Toolchain (without parser) took 43661.93ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 92.6MB in the beginning and 160.2MB in the end (delta: -67.6MB). Peak memory consumption was 158.2MB. Max. memory is 16.1GB. [2024-11-14 05:41:01,375 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:41:01,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.52ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:41:01,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.74ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:41:01,377 INFO L158 Benchmark]: Boogie Preprocessor took 50.59ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.9MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:41:01,378 INFO L158 Benchmark]: RCFGBuilder took 389.80ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 66.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:41:01,379 INFO L158 Benchmark]: TraceAbstraction took 42650.06ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 65.6MB in the beginning and 164.7MB in the end (delta: -99.1MB). Peak memory consumption was 124.6MB. Max. memory is 16.1GB. [2024-11-14 05:41:01,379 INFO L158 Benchmark]: Witness Printer took 121.05ms. Allocated memory is still 343.9MB. Free memory was 164.7MB in the beginning and 160.2MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:41:01,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.52ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.74ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.59ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.9MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 389.80ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 66.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 42650.06ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 65.6MB in the beginning and 164.7MB in the end (delta: -99.1MB). Peak memory consumption was 124.6MB. Max. memory is 16.1GB. * Witness Printer took 121.05ms. Allocated memory is still 343.9MB. Free memory was 164.7MB in the beginning and 160.2MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.4s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 515 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 400 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 679 IncrementalHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 115 mSDtfsCounter, 679 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 353 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 33.6s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 383 ConstructedInterpolants, 3 QuantifiedInterpolants, 3952 SizeOfPredicates, 42 NumberOfNonLiveVariables, 568 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 757/784 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && (((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:41:01,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8026caec-ece3-474b-b6ba-cf11bcc0d64b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE