./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje --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 0d13c89c888981c127c6dd7ab72dd0bf047efc83f9fb8148df4ba0b97f759b2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:32:45,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:32:45,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:32:45,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:32:45,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:32:45,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:32:45,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:32:45,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:32:45,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:32:45,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:32:45,487 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:32:45,488 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:32:45,488 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:32:45,488 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:32:45,489 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:32:45,489 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:32:45,489 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:32:45,490 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:32:45,490 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:32:45,491 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:32:45,491 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:32:45,495 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:32:45,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:32:45,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:32:45,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:32:45,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:32:45,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:32:45,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:32:45,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:32:45,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:32:45,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:32:45,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:32:45,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:32:45,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:32:45,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:32:45,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:32:45,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:32:45,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:32:45,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:32:45,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:32:45,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:32:45,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:32:45,506 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:32:45,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:32:45,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:32:45,507 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:32:45,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:32:45,507 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d13c89c888981c127c6dd7ab72dd0bf047efc83f9fb8148df4ba0b97f759b2c [2024-11-09 04:32:45,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:32:45,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:32:45,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:32:45,961 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:32:45,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:32:45,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c Unable to find full path for "g++" [2024-11-09 04:32:48,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:32:48,453 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:32:48,453 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c [2024-11-09 04:32:48,462 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/data/dcfd40d0e/df70914b15914b01a826d423e7762d4b/FLAG361bfe2c9 [2024-11-09 04:32:48,478 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/data/dcfd40d0e/df70914b15914b01a826d423e7762d4b [2024-11-09 04:32:48,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:32:48,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:32:48,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:32:48,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:32:48,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:32:48,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d72b373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48, skipping insertion in model container [2024-11-09 04:32:48,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:32:48,719 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_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c[524,537] [2024-11-09 04:32:48,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:32:48,754 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:32:48,770 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_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound50.c[524,537] [2024-11-09 04:32:48,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:32:48,801 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:32:48,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48 WrapperNode [2024-11-09 04:32:48,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:32:48,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:32:48,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:32:48,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:32:48,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,847 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2024-11-09 04:32:48,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:32:48,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:32:48,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:32:48,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:32:48,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:32:48,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:32:48,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:32:48,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:32:48,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (1/1) ... [2024-11-09 04:32:48,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:32:48,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:48,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:32:48,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:32:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:32:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:32:48,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:32:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:32:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:32:48,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:32:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:32:48,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:32:49,046 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:32:49,048 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:32:49,198 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-09 04:32:49,198 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:32:49,261 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:32:49,261 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:32:49,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:32:49 BoogieIcfgContainer [2024-11-09 04:32:49,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:32:49,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:32:49,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:32:49,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:32:49,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:32:48" (1/3) ... [2024-11-09 04:32:49,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553c33e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:32:49, skipping insertion in model container [2024-11-09 04:32:49,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:48" (2/3) ... [2024-11-09 04:32:49,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553c33e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:32:49, skipping insertion in model container [2024-11-09 04:32:49,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:32:49" (3/3) ... [2024-11-09 04:32:49,281 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound50.c [2024-11-09 04:32:49,306 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:32:49,306 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:32:49,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:32:49,429 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;@15632bc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:32:49,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:32:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:32:49,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 04:32:49,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:49,448 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:49,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:32:49,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash -838031573, now seen corresponding path program 1 times [2024-11-09 04:32:49,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:49,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147510914] [2024-11-09 04:32:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:49,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:32:49,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899385899] [2024-11-09 04:32:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:49,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:49,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:49,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:49,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:32:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:49,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:32:49,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:32:50,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:32:50,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:50,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147510914] [2024-11-09 04:32:50,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:32:50,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899385899] [2024-11-09 04:32:50,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899385899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:50,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:32:50,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:32:50,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361865000] [2024-11-09 04:32:50,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:50,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:32:50,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:50,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:32:50,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:32:50,125 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:32:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:50,259 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2024-11-09 04:32:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:32:50,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-09 04:32:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:50,274 INFO L225 Difference]: With dead ends: 40 [2024-11-09 04:32:50,274 INFO L226 Difference]: Without dead ends: 24 [2024-11-09 04:32:50,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:32:50,282 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:50,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 51 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:32:50,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-09 04:32:50,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-09 04:32:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:32:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2024-11-09 04:32:50,360 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2024-11-09 04:32:50,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:50,361 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2024-11-09 04:32:50,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:32:50,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-09 04:32:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 04:32:50,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:50,365 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:50,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 04:32:50,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:32:50,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:32:50,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash -420431113, now seen corresponding path program 1 times [2024-11-09 04:32:50,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:50,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995381879] [2024-11-09 04:32:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:32:50,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297728992] [2024-11-09 04:32:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:50,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:50,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:50,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:50,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:32:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:50,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:32:50,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:32:51,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:32:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:32:53,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:53,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995381879] [2024-11-09 04:32:53,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:32:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297728992] [2024-11-09 04:32:53,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297728992] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:32:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1834603197] [2024-11-09 04:32:53,934 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2024-11-09 04:32:53,935 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:32:53,943 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:32:53,950 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:32:53,951 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:32:55,500 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 04:32:55,652 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-09 04:32:55,688 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:33:11,378 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '296#(and (exists ((|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_11|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| 50) (<= |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_11| 50) (not (= (mod (+ (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615) 1) 18446744073709551616) 0)) (<= 1 |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_9|) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_19|))) (= |__VERIFIER_assert_#in~cond| 0))' at error location [2024-11-09 04:33:11,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:33:11,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:33:11,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2024-11-09 04:33:11,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952950647] [2024-11-09 04:33:11,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:33:11,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:33:11,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:33:11,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:33:11,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=430, Unknown=6, NotChecked=0, Total=506 [2024-11-09 04:33:11,383 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 04:33:20,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:28,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:30,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:32,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:34,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:36,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:36,655 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2024-11-09 04:33:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:33:36,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 21 [2024-11-09 04:33:36,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:36,657 INFO L225 Difference]: With dead ends: 42 [2024-11-09 04:33:36,658 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 04:33:36,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 31.2s TimeCoverageRelationStatistics Valid=89, Invalid=550, Unknown=11, NotChecked=0, Total=650 [2024-11-09 04:33:36,660 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 10 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:36,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 81 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 69 Invalid, 6 Unknown, 0 Unchecked, 12.2s Time] [2024-11-09 04:33:36,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 04:33:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 04:33:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:33:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-11-09 04:33:36,676 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 21 [2024-11-09 04:33:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:36,676 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-11-09 04:33:36,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 04:33:36,677 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-09 04:33:36,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 04:33:36,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:36,679 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:33:36,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:33:36,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:33:36,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:33:36,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:36,884 INFO L85 PathProgramCache]: Analyzing trace with hash 502729771, now seen corresponding path program 2 times [2024-11-09 04:33:36,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:36,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895742957] [2024-11-09 04:33:36,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:36,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:33:37,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594438782] [2024-11-09 04:33:37,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:33:37,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:33:37,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:33:37,041 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:33:37,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:33:55,264 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:33:55,264 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:33:55,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 04:33:55,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:34:20,135 WARN L851 $PredicateComparison]: unable to prove that (or (= |c___VERIFIER_assert_#in~cond| 1) (and (= |c___VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main_~y~0#1_24| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| Int) (|v_ULTIMATE.start_main_~x~0#1_24| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 50) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|)) 18446744073709551616) 0)) (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|) (* |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) 1) 18446744073709551616) 0) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27|))))) is different from false [2024-11-09 04:34:36,433 WARN L851 $PredicateComparison]: unable to prove that (or (and (exists ((|v_ULTIMATE.start_main_~y~0#1_24| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| Int) (|v_ULTIMATE.start_main_~x~0#1_24| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 50) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|)) 18446744073709551616) 0)) (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|) (* |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) 1) 18446744073709551616) 0) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27|))) (= c___VERIFIER_assert_~cond 0)) (= c___VERIFIER_assert_~cond 1)) is different from false [2024-11-09 04:34:52,681 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~y~0#1_24| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| Int) (|v_ULTIMATE.start_main_~x~0#1_24| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 50) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|)) 18446744073709551616) 0)) (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|) (* |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) 1) 18446744073709551616) 0) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27|))) is different from false [2024-11-09 04:34:54,684 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~y~0#1_24| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| Int) (|v_ULTIMATE.start_main_~x~0#1_24| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 50) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|)) 18446744073709551616) 0)) (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| 18446744073709551615 |v_ULTIMATE.start_main_~y~0#1_24|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~x~0#1_24|) (* |v_ULTIMATE.start_main_~x~0#1_24| 18446744073709551615) 1) 18446744073709551616) 0) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_27|))) is different from true [2024-11-09 04:34:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 1 not checked. [2024-11-09 04:34:54,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:35:09,010 WARN L873 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~y~0#1| Int) (|ULTIMATE.start_main_~x~0#1| Int)) (or (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 |ULTIMATE.start_main_~x~0#1|) 1) 18446744073709551616) 0)) (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~z~0#1| (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|)) 18446744073709551616) 0))) is different from true [2024-11-09 04:35:09,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:35:09,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895742957] [2024-11-09 04:35:09,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:35:09,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594438782] [2024-11-09 04:35:09,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594438782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:35:09,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1010370006] [2024-11-09 04:35:09,016 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2024-11-09 04:35:09,016 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:35:09,016 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:35:09,017 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:35:09,017 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:35:09,855 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 04:35:09,935 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-09 04:35:09,958 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:35:40,342 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '598#(and (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_18| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| 50) (<= 0 |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_23|) (not (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_23|) (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_23|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_23| 18446744073709551615) 1) 18446744073709551616) 0)) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_40|) (<= 1 |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_18|) (<= |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_23| 50))))' at error location [2024-11-09 04:35:40,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:35:40,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:35:40,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 04:35:40,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600181317] [2024-11-09 04:35:40,344 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 04:35:40,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:35:40,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:35:40,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:35:40,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=514, Unknown=18, NotChecked=196, Total=812 [2024-11-09 04:35:40,346 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:35:42,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:35:44,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:35:46,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:35:48,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:17,146 WARN L286 SmtUtils]: Spent 20.14s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:36:25,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:27,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:29,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:31,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:33,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:35,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:37,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:39,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:39,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:36:39,725 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2024-11-09 04:36:39,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:36:39,725 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-09 04:36:39,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:36:39,726 INFO L225 Difference]: With dead ends: 40 [2024-11-09 04:36:39,726 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:36:39,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 85.5s TimeCoverageRelationStatistics Valid=98, Invalid=650, Unknown=24, NotChecked=220, Total=992 [2024-11-09 04:36:39,728 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:36:39,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 63 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 12 Unknown, 68 Unchecked, 24.7s Time] [2024-11-09 04:36:39,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:36:39,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:36:39,731 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) [2024-11-09 04:36:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:36:39,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2024-11-09 04:36:39,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:36:39,732 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:36:39,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:36:39,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:36:39,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:36:39,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:36:39,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:36:39,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:36:39,940 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-09 04:36:39,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:38:35,800 WARN L286 SmtUtils]: Spent 1.83m on a formula simplification. DAG size of input: 49 DAG size of output: 36 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:40:32,039 WARN L286 SmtUtils]: Spent 1.94m on a formula simplification. DAG size of input: 49 DAG size of output: 29 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:40:32,046 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:40:32,070 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:40:32,126 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:40:32,127 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:40:32,127 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:40:32,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:40:32 BoogieIcfgContainer [2024-11-09 04:40:32,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:40:32,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:40:32,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:40:32,130 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:40:32,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:32:49" (3/4) ... [2024-11-09 04:40:32,137 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:40:32,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 04:40:32,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 04:40:32,149 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 04:40:32,149 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 04:40:32,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:40:32,151 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:40:32,280 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:40:32,280 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:40:32,280 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:40:32,281 INFO L158 Benchmark]: Toolchain (without parser) took 463799.10ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 140.0MB in the beginning and 130.8MB in the end (delta: 9.3MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,282 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 172.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:40:32,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.09ms. Allocated memory is still 172.0MB. Free memory was 140.0MB in the beginning and 127.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.70ms. Allocated memory is still 172.0MB. Free memory was 127.5MB in the beginning and 126.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,283 INFO L158 Benchmark]: Boogie Preprocessor took 36.03ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 124.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,283 INFO L158 Benchmark]: RCFGBuilder took 378.73ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 112.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,287 INFO L158 Benchmark]: TraceAbstraction took 462862.11ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 112.1MB in the beginning and 135.1MB in the end (delta: -22.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,287 INFO L158 Benchmark]: Witness Printer took 150.96ms. Allocated memory is still 218.1MB. Free memory was 135.1MB in the beginning and 130.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 172.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.09ms. Allocated memory is still 172.0MB. Free memory was 140.0MB in the beginning and 127.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.70ms. Allocated memory is still 172.0MB. Free memory was 127.5MB in the beginning and 126.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.03ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 124.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.73ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 112.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 462862.11ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 112.1MB in the beginning and 135.1MB in the end (delta: -22.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 150.96ms. Allocated memory is still 218.1MB. Free memory was 135.1MB in the beginning and 130.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 17]: 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 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 230.6s, OverallIterations: 3, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 84.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 37.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 195 SdHoareTripleChecker+Invalid, 36.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 68 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 37 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 107 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 116.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=2, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 18.5s SatisfiabilityAnalysisTime, 77.1s InterpolantComputationTime, 154 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 94 ConstructedInterpolants, 5 QuantifiedInterpolants, 624 SizeOfPredicates, 4 NumberOfNonLiveVariables, 193 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 68/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((x == 1) && (y == 1)) && (z <= 50)) && (0 <= z)) || ((z <= 50) && (0 <= z))) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:40:32,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e2c7ab-daaa-4cba-b0a7-6bb5992be057/bin/utaipan-verify-YMUCfTKeje/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