./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash daa057e82631e6f1d313140c57470663c53a0147ee44af9a015893bbe50819e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:33:30,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:33:30,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:33:30,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:33:30,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:33:30,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:33:30,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:33:30,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:33:30,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:33:30,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:33:30,688 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:33:30,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:33:30,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:33:30,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:33:30,689 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:33:30,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:33:30,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:33:30,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:33:30,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:33:30,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:33:30,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:33:30,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:33:30,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:33:30,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:33:30,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:33:30,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:33:30,691 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:33:30,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:33:30,691 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:33:30,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:33:30,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:33:30,692 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:33:30,693 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC 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 -> Automizer 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 -> daa057e82631e6f1d313140c57470663c53a0147ee44af9a015893bbe50819e3 [2024-11-23 18:33:31,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:33:31,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:33:31,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:33:31,034 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:33:31,034 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:33:31,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i [2024-11-23 18:33:34,063 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/data/b397beedb/9b4a29eb8ddf48a5b9c4da62d2ce29fb/FLAGb1e096395 [2024-11-23 18:33:34,349 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:33:34,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i [2024-11-23 18:33:34,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/data/b397beedb/9b4a29eb8ddf48a5b9c4da62d2ce29fb/FLAGb1e096395 [2024-11-23 18:33:34,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/data/b397beedb/9b4a29eb8ddf48a5b9c4da62d2ce29fb [2024-11-23 18:33:34,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:33:34,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:33:34,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:33:34,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:33:34,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:33:34,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b50b7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34, skipping insertion in model container [2024-11-23 18:33:34,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:33:34,586 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_cd3cb78f-28ce-4ed6-b278-68e763bbabae/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i[915,928] [2024-11-23 18:33:34,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:33:34,667 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:33:34,685 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_cd3cb78f-28ce-4ed6-b278-68e763bbabae/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i[915,928] [2024-11-23 18:33:34,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:33:34,748 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:33:34,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34 WrapperNode [2024-11-23 18:33:34,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:33:34,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:33:34,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:33:34,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:33:34,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,813 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-23 18:33:34,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:33:34,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:33:34,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:33:34,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:33:34,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,850 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:33:34,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,855 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:33:34,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:33:34,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:33:34,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:33:34,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (1/1) ... [2024-11-23 18:33:34,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:33:34,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:33:34,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:33:34,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:33:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:33:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:33:34,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:33:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:33:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:33:34,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:33:35,036 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:33:35,038 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:33:35,258 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-23 18:33:35,258 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:33:35,269 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:33:35,270 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:33:35,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:33:35 BoogieIcfgContainer [2024-11-23 18:33:35,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:33:35,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:33:35,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:33:35,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:33:35,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:33:34" (1/3) ... [2024-11-23 18:33:35,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c0b765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:33:35, skipping insertion in model container [2024-11-23 18:33:35,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:33:34" (2/3) ... [2024-11-23 18:33:35,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c0b765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:33:35, skipping insertion in model container [2024-11-23 18:33:35,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:33:35" (3/3) ... [2024-11-23 18:33:35,282 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-40.i [2024-11-23 18:33:35,299 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:33:35,301 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-40.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:33:35,376 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:33:35,394 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=PETRI_NET, 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;@7d0c6dd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:33:35,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:33:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 18:33:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-23 18:33:35,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:35,411 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:35,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:35,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1830882775, now seen corresponding path program 1 times [2024-11-23 18:33:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:35,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326450364] [2024-11-23 18:33:35,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:35,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-23 18:33:35,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:35,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326450364] [2024-11-23 18:33:35,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326450364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:33:35,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379271686] [2024-11-23 18:33:35,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:35,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:35,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:33:35,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:33:35,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:33:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:35,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:33:35,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-23 18:33:35,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:33:35,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379271686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:35,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:33:35,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:33:35,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372948953] [2024-11-23 18:33:35,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:35,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:33:35,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:36,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:33:36,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:33:36,011 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 18:33:36,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:36,039 INFO L93 Difference]: Finished difference Result 77 states and 126 transitions. [2024-11-23 18:33:36,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:33:36,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2024-11-23 18:33:36,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:36,048 INFO L225 Difference]: With dead ends: 77 [2024-11-23 18:33:36,048 INFO L226 Difference]: Without dead ends: 38 [2024-11-23 18:33:36,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:33:36,055 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:36,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:33:36,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-23 18:33:36,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-23 18:33:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 18:33:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2024-11-23 18:33:36,099 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 88 [2024-11-23 18:33:36,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:36,100 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2024-11-23 18:33:36,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 18:33:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-11-23 18:33:36,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-23 18:33:36,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:36,106 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:36,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:33:36,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:33:36,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:36,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:36,307 INFO L85 PathProgramCache]: Analyzing trace with hash 138008983, now seen corresponding path program 1 times [2024-11-23 18:33:36,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:36,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261766193] [2024-11-23 18:33:36,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:36,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:38,126 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 18:33:38,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:38,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261766193] [2024-11-23 18:33:38,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261766193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:38,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:38,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683584010] [2024-11-23 18:33:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:38,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:38,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:38,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:33:38,131 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 18:33:38,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:38,469 INFO L93 Difference]: Finished difference Result 70 states and 90 transitions. [2024-11-23 18:33:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:33:38,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2024-11-23 18:33:38,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:38,472 INFO L225 Difference]: With dead ends: 70 [2024-11-23 18:33:38,472 INFO L226 Difference]: Without dead ends: 68 [2024-11-23 18:33:38,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:33:38,475 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 52 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:38,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 234 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:33:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-23 18:33:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2024-11-23 18:33:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.0625) internal successors, (34), 33 states have internal predecessors, (34), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:33:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2024-11-23 18:33:38,505 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 70 transitions. Word has length 88 [2024-11-23 18:33:38,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:38,506 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 70 transitions. [2024-11-23 18:33:38,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 18:33:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2024-11-23 18:33:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-23 18:33:38,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:38,510 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:38,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:33:38,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:38,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash 139856025, now seen corresponding path program 1 times [2024-11-23 18:33:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:38,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104661143] [2024-11-23 18:33:38,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:38,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 18:33:39,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104661143] [2024-11-23 18:33:39,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104661143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:33:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852288122] [2024-11-23 18:33:39,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:39,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:39,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:33:39,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:33:39,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:33:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:39,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 18:33:39,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:40,826 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-23 18:33:40,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:33:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 18:33:42,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852288122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:33:42,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:33:42,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-11-23 18:33:42,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625919872] [2024-11-23 18:33:42,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:33:42,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 18:33:42,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:42,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 18:33:42,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:33:42,229 INFO L87 Difference]: Start difference. First operand 53 states and 70 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 18:33:42,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:42,924 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2024-11-23 18:33:42,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 18:33:42,925 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 88 [2024-11-23 18:33:42,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:42,926 INFO L225 Difference]: With dead ends: 62 [2024-11-23 18:33:42,926 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 18:33:42,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 168 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2024-11-23 18:33:42,928 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 43 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:42,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 220 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:33:42,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 18:33:42,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 18:33:42,929 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) [2024-11-23 18:33:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 18:33:42,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2024-11-23 18:33:42,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:42,930 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 18:33:42,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 18:33:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 18:33:42,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 18:33:42,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 18:33:42,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 18:33:43,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:33:43,140 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 18:33:43,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 18:33:43,316 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:33:43,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:33:43 BoogieIcfgContainer [2024-11-23 18:33:43,329 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:33:43,330 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:33:43,330 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:33:43,330 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:33:43,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:33:35" (3/4) ... [2024-11-23 18:33:43,334 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 18:33:43,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-23 18:33:43,346 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-23 18:33:43,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-23 18:33:43,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 18:33:43,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 18:33:43,434 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:33:43,435 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:33:43,435 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:33:43,436 INFO L158 Benchmark]: Toolchain (without parser) took 9037.47ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 106.1MB in the beginning and 308.5MB in the end (delta: -202.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 18:33:43,436 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:33:43,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.13ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 93.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:33:43,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.32ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:33:43,437 INFO L158 Benchmark]: Boogie Preprocessor took 51.09ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 89.7MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:33:43,437 INFO L158 Benchmark]: RCFGBuilder took 405.03ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 75.9MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:33:43,437 INFO L158 Benchmark]: TraceAbstraction took 8056.33ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 75.2MB in the beginning and 312.4MB in the end (delta: -237.2MB). Peak memory consumption was 170.5MB. Max. memory is 16.1GB. [2024-11-23 18:33:43,438 INFO L158 Benchmark]: Witness Printer took 104.75ms. Allocated memory is still 352.3MB. Free memory was 312.4MB in the beginning and 308.5MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:33:43,440 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.13ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 93.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.32ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.09ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 89.7MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 405.03ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 75.9MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8056.33ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 75.2MB in the beginning and 312.4MB in the end (delta: -237.2MB). Peak memory consumption was 170.5MB. Max. memory is 16.1GB. * Witness Printer took 104.75ms. Allocated memory is still 352.3MB. Free memory was 312.4MB in the beginning and 308.5MB in the end (delta: 3.9MB). 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 506 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 349 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 157 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 260 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 440 NumberOfCodeBlocks, 440 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 1284 SizeOfPredicates, 13 NumberOfNonLiveVariables, 419 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2086/2184 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (var_1_8 < 1) RESULT: Ultimate proved your program to be correct! [2024-11-23 18:33:43,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3cb78f-28ce-4ed6-b278-68e763bbabae/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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