./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2 --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 02ce82ba0ace3f5b040163bfedd713ab4e5a143077898ba922a6491fc85c9af7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:23:54,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:23:54,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:23:54,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:23:54,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:23:54,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:23:54,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:23:54,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:23:54,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:23:54,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:23:54,426 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:23:54,427 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:23:54,427 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:23:54,427 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:23:54,427 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:23:54,428 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:23:54,432 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:23:54,432 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:23:54,432 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:23:54,433 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:23:54,433 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:23:54,433 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:23:54,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:23:54,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:23:54,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:23:54,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:23:54,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:23:54,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:23:54,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:23:54,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:23:54,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:23:54,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:23:54,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:23:54,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:23:54,436 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:23:54,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:23:54,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:23:54,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:23:54,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:23:54,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:23:54,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:23:54,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:23:54,442 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:23:54,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:23:54,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:23:54,443 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:23:54,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:23:54,443 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_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02ce82ba0ace3f5b040163bfedd713ab4e5a143077898ba922a6491fc85c9af7 [2024-11-02 12:23:54,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:23:54,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:23:54,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:23:54,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:23:54,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:23:54,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i Unable to find full path for "g++" [2024-11-02 12:23:56,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:23:56,980 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:23:56,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i [2024-11-02 12:23:56,989 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data/092759235/b8e919a95f1447d287e3e36c105115dc/FLAG2b5f4b6c4 [2024-11-02 12:23:57,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data/092759235/b8e919a95f1447d287e3e36c105115dc [2024-11-02 12:23:57,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:23:57,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:23:57,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:23:57,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:23:57,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:23:57,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@578a2112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57, skipping insertion in model container [2024-11-02 12:23:57,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:23:57,577 WARN L251 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_cca48dcd-02e3-4b72-b606-96f701736f04/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i[914,927] [2024-11-02 12:23:57,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:23:57,621 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:23:57,636 WARN L251 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_cca48dcd-02e3-4b72-b606-96f701736f04/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i[914,927] [2024-11-02 12:23:57,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:23:57,673 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:23:57,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57 WrapperNode [2024-11-02 12:23:57,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:23:57,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:23:57,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:23:57,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:23:57,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,724 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2024-11-02 12:23:57,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:23:57,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:23:57,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:23:57,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:23:57,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:23:57,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:23:57,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:23:57,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:23:57,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (1/1) ... [2024-11-02 12:23:57,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:23:57,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:23:57,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:23:57,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:23:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:23:57,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:23:57,836 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:23:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:23:57,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:23:57,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:23:57,926 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:23:57,929 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:23:58,224 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 12:23:58,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:23:58,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:23:58,337 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:23:58,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:23:58 BoogieIcfgContainer [2024-11-02 12:23:58,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:23:58,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:23:58,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:23:58,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:23:58,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:23:57" (1/3) ... [2024-11-02 12:23:58,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c2f604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:23:58, skipping insertion in model container [2024-11-02 12:23:58,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:57" (2/3) ... [2024-11-02 12:23:58,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c2f604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:23:58, skipping insertion in model container [2024-11-02 12:23:58,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:23:58" (3/3) ... [2024-11-02 12:23:58,348 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-1.i [2024-11-02 12:23:58,369 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:23:58,369 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:23:58,459 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:23:58,465 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;@204076f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:23:58,466 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:23:58,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:23:58,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-02 12:23:58,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:23:58,482 INFO L215 NwaCegarLoop]: trace histogram [10, 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] [2024-11-02 12:23:58,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:23:58,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:23:58,490 INFO L85 PathProgramCache]: Analyzing trace with hash 506684542, now seen corresponding path program 1 times [2024-11-02 12:23:58,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:23:58,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797292447] [2024-11-02 12:23:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:23:58,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:23:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:23:58,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:23:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:23:58,960 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:23:58,962 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:23:58,964 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:23:58,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:23:58,972 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:23:59,034 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:23:59,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:23:59 BoogieIcfgContainer [2024-11-02 12:23:59,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:23:59,042 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:23:59,042 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:23:59,042 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:23:59,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:23:58" (3/4) ... [2024-11-02 12:23:59,046 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:23:59,047 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:23:59,049 INFO L158 Benchmark]: Toolchain (without parser) took 1721.64ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 67.8MB in the end (delta: 59.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-02 12:23:59,049 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:23:59,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.31ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 114.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:23:59,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.42ms. Allocated memory is still 163.6MB. Free memory was 114.4MB in the beginning and 112.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:23:59,052 INFO L158 Benchmark]: Boogie Preprocessor took 27.09ms. Allocated memory is still 163.6MB. Free memory was 112.2MB in the beginning and 111.2MB in the end (delta: 976.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:23:59,054 INFO L158 Benchmark]: RCFGBuilder took 584.09ms. Allocated memory is still 163.6MB. Free memory was 111.2MB in the beginning and 95.1MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:23:59,054 INFO L158 Benchmark]: TraceAbstraction took 699.36ms. Allocated memory is still 163.6MB. Free memory was 94.4MB in the beginning and 68.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-02 12:23:59,056 INFO L158 Benchmark]: Witness Printer took 6.07ms. Allocated memory is still 163.6MB. Free memory was 68.3MB in the beginning and 67.8MB in the end (delta: 486.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:23:59,060 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.31ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 114.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.42ms. Allocated memory is still 163.6MB. Free memory was 114.4MB in the beginning and 112.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.09ms. Allocated memory is still 163.6MB. Free memory was 112.2MB in the beginning and 111.2MB in the end (delta: 976.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.09ms. Allocated memory is still 163.6MB. Free memory was 111.2MB in the beginning and 95.1MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 699.36ms. Allocated memory is still 163.6MB. Free memory was 94.4MB in the beginning and 68.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 6.07ms. Allocated memory is still 163.6MB. Free memory was 68.3MB in the beginning and 67.8MB in the end (delta: 486.4kB). 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 38, overapproximation of someUnaryFLOAToperation at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 9.8; [L23] float var_1_2 = 10.375; [L24] float var_1_4 = 256.2; [L25] unsigned long int var_1_5 = 8; [L26] unsigned long int var_1_6 = 3674304896; [L27] unsigned long int var_1_7 = 8; [L28] unsigned char var_1_8 = 0; [L29] unsigned char var_1_9 = 0; [L30] signed short int var_1_10 = -25; [L31] signed short int var_1_11 = -5; [L67] isInitial = 1 [L68] FCALL initially() [L69] COND TRUE 1 [L70] FCALL updateLastVariables() [L71] CALL updateVariables() [L43] var_1_2 = __VERIFIER_nondet_float() [L44] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_4=1281/5, var_1_5=8, var_1_6=3674304896, var_1_7=8, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_4=1281/5, var_1_5=8, var_1_6=3674304896, var_1_7=8, var_1_8=0, var_1_9=0] [L45] var_1_4 = __VERIFIER_nondet_float() [L46] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=3674304896, var_1_7=8, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=3674304896, var_1_7=8, var_1_8=0, var_1_9=0] [L47] var_1_6 = __VERIFIER_nondet_ulong() [L48] CALL assume_abort_if_not(var_1_6 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=8, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_6 >= 2147483647) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=8, var_1_8=0, var_1_9=0] [L49] CALL assume_abort_if_not(var_1_6 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=8, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_6 <= 4294967294) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=8, var_1_8=0, var_1_9=0] [L50] var_1_7 = __VERIFIER_nondet_ulong() [L51] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_8=0, var_1_9=0] [L52] CALL assume_abort_if_not(var_1_7 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_7 <= 4294967294) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=0] [L53] var_1_9 = __VERIFIER_nondet_uchar() [L54] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0] [L55] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=-256] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, var_1_10=-25, var_1_11=-5, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=-256] [L56] var_1_11 = __VERIFIER_nondet_short() [L57] CALL assume_abort_if_not(var_1_11 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-32767, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=-256] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_11 >= -32767) VAL [isInitial=1, var_1_10=-25, var_1_11=-32767, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=-256] [L58] CALL assume_abort_if_not(var_1_11 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=-25, var_1_11=-32767, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=-256] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_11 <= 32766) VAL [isInitial=1, var_1_10=-25, var_1_11=-32767, var_1_1=49/5, var_1_5=8, var_1_6=2147483647, var_1_7=2147483147, var_1_8=0, var_1_9=-256] [L71] RET updateVariables() [L72] CALL step() [L35] var_1_5 = (((((var_1_6 - 500u)) < (var_1_7)) ? ((var_1_6 - 500u)) : (var_1_7))) [L36] var_1_8 = var_1_9 [L37] var_1_10 = var_1_11 [L38] COND TRUE (var_1_2 <= 8.75f) || var_1_8 [L39] var_1_1 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) [L72] RET step() [L73] CALL, EXPR property() [L63-L64] return (((((var_1_2 <= 8.75f) || var_1_8) ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : 1) && (var_1_5 == ((unsigned long int) (((((var_1_6 - 500u)) < (var_1_7)) ? ((var_1_6 - 500u)) : (var_1_7)))))) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((signed short int) var_1_11)) ; [L73] RET, EXPR property() [L73] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=-32767, var_1_11=-32767, var_1_1=49/5, var_1_4=49/5, var_1_5=2147483147, var_1_6=2147483647, var_1_7=2147483147, var_1_8=-256, var_1_9=-256] [L19] reach_error() VAL [isInitial=1, var_1_10=-32767, var_1_11=-32767, var_1_1=49/5, var_1_4=49/5, var_1_5=2147483147, var_1_6=2147483647, var_1_7=2147483147, var_1_8=-256, var_1_9=-256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 10, 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=25occurred 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, 40 NumberOfCodeBlocks, 40 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 [2024-11-02 12:23:59,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2 --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 02ce82ba0ace3f5b040163bfedd713ab4e5a143077898ba922a6491fc85c9af7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:01,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:01,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:24:01,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:01,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:01,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:01,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:01,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:01,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:01,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:01,784 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:01,785 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:01,785 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:01,786 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:01,786 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:01,787 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:01,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:01,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:01,788 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:01,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:01,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:01,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:01,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:01,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:01,791 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:24:01,791 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:24:01,792 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:01,792 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:24:01,793 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:01,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:01,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:01,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:01,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:24:01,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:01,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:01,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:01,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:01,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:01,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:01,797 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:24:01,797 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:24:01,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:01,799 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:01,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:01,799 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02ce82ba0ace3f5b040163bfedd713ab4e5a143077898ba922a6491fc85c9af7 [2024-11-02 12:24:02,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:02,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:02,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:02,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:02,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:02,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i Unable to find full path for "g++" [2024-11-02 12:24:04,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:04,672 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:04,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i [2024-11-02 12:24:04,682 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data/442392f31/cf3e7150e2494d3c835adcca01236fb3/FLAGc90fea70c [2024-11-02 12:24:04,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/data/442392f31/cf3e7150e2494d3c835adcca01236fb3 [2024-11-02 12:24:04,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:04,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:04,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:04,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:04,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:04,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:04" (1/1) ... [2024-11-02 12:24:04,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f657b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:04, skipping insertion in model container [2024-11-02 12:24:04,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:04" (1/1) ... [2024-11-02 12:24:04,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:05,000 WARN L251 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_cca48dcd-02e3-4b72-b606-96f701736f04/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i[914,927] [2024-11-02 12:24:05,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:05,077 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:05,092 WARN L251 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_cca48dcd-02e3-4b72-b606-96f701736f04/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-1.i[914,927] [2024-11-02 12:24:05,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:05,146 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:05,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05 WrapperNode [2024-11-02 12:24:05,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:05,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:05,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:05,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:05,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,201 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2024-11-02 12:24:05,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:05,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:05,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:05,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:05,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:05,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:05,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:05,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:05,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (1/1) ... [2024-11-02 12:24:05,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:05,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:05,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:05,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:24:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:24:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:24:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:05,453 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:05,457 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:05,740 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:05,741 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:05,762 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:05,762 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:24:05,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:05 BoogieIcfgContainer [2024-11-02 12:24:05,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:05,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:05,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:05,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:05,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:04" (1/3) ... [2024-11-02 12:24:05,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:05, skipping insertion in model container [2024-11-02 12:24:05,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:05" (2/3) ... [2024-11-02 12:24:05,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:05, skipping insertion in model container [2024-11-02 12:24:05,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:05" (3/3) ... [2024-11-02 12:24:05,774 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-1.i [2024-11-02 12:24:05,793 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:05,794 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:05,876 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:05,883 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;@220d9dca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:05,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:24:05,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-02 12:24:05,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:05,924 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:05,925 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:05,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:05,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1042403981, now seen corresponding path program 1 times [2024-11-02 12:24:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:24:05,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120097163] [2024-11-02 12:24:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:05,949 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 [2024-11-02 12:24:05,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:24:05,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:24:05,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:24:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:06,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 12:24:06,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:24:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 43 proven. 24 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-02 12:24:14,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:24:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-02 12:24:21,156 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:24:21,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120097163] [2024-11-02 12:24:21,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120097163] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:24:21,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1329623266] [2024-11-02 12:24:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:21,158 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 12:24:21,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 12:24:21,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 12:24:21,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca48dcd-02e3-4b72-b606-96f701736f04/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-02 12:24:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:21,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 12:24:21,800 INFO L278 TraceCheckSpWp]: Computing forward predicates...