./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum05.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd --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 aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:45:25,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:45:25,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:45:25,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:45:25,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:45:25,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:45:25,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:45:25,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:45:25,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:45:25,531 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:45:25,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:45:25,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:45:25,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:45:25,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:45:25,533 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:45:25,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:45:25,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:45:25,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:45:25,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:45:25,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:45:25,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:45:25,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:45:25,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:45:25,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:45:25,535 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:45:25,535 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:45:25,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:45:25,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:45:25,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:45:25,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:45:25,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:45:25,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:45:25,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:45:25,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:45:25,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:45:25,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:45:25,537 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:45:25,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:45:25,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:45:25,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:45:25,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:45:25,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:45:25,538 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_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd 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 -> aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 [2024-11-13 13:45:25,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:45:25,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:45:25,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:45:25,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:45:25,942 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:45:25,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/reducercommutativity/rangesum05.i Unable to find full path for "g++" [2024-11-13 13:45:28,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:45:28,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:45:28,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/sv-benchmarks/c/reducercommutativity/rangesum05.i [2024-11-13 13:45:28,754 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/data/0ad5d2ddd/2bd5ed0fd46e4628af8b35ad4f1db2c5/FLAG518255479 [2024-11-13 13:45:28,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/data/0ad5d2ddd/2bd5ed0fd46e4628af8b35ad4f1db2c5 [2024-11-13 13:45:28,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:45:28,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:45:28,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:45:28,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:45:28,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:45:28,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:45:28" (1/1) ... [2024-11-13 13:45:28,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3526e11b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:28, skipping insertion in model container [2024-11-13 13:45:28,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:45:28" (1/1) ... [2024-11-13 13:45:28,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:45:29,085 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_5a74d7fb-8656-41e6-977d-006eba3725e0/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2024-11-13 13:45:29,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:45:29,108 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:45:29,149 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_5a74d7fb-8656-41e6-977d-006eba3725e0/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2024-11-13 13:45:29,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:45:29,174 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:45:29,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29 WrapperNode [2024-11-13 13:45:29,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:45:29,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:45:29,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:45:29,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:45:29,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,218 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-13 13:45:29,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:45:29,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:45:29,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:45:29,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:45:29,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,260 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-13 13:45:29,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:45:29,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:45:29,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:45:29,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:45:29,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (1/1) ... [2024-11-13 13:45:29,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:45:29,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:29,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:45:29,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:45:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:45:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:45:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:45:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 13:45:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:45:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 13:45:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:45:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:45:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 13:45:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 13:45:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2024-11-13 13:45:29,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2024-11-13 13:45:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:45:29,528 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:45:29,531 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:45:29,743 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 13:45:29,744 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:45:29,757 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:45:29,758 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 13:45:29,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:45:29 BoogieIcfgContainer [2024-11-13 13:45:29,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:45:29,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:45:29,764 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:45:29,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:45:29,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:45:28" (1/3) ... [2024-11-13 13:45:29,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1035d7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:45:29, skipping insertion in model container [2024-11-13 13:45:29,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:29" (2/3) ... [2024-11-13 13:45:29,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1035d7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:45:29, skipping insertion in model container [2024-11-13 13:45:29,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:45:29" (3/3) ... [2024-11-13 13:45:29,774 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum05.i [2024-11-13 13:45:29,796 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:45:29,798 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG rangesum05.i that has 2 procedures, 26 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-13 13:45:29,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:45:29,907 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;@6bae1265, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:45:29,907 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:45:29,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:29,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 13:45:29,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:29,926 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:29,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:29,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1033775959, now seen corresponding path program 1 times [2024-11-13 13:45:29,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:29,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339377298] [2024-11-13 13:45:29,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:29,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:30,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:45:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:30,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:45:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:30,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:45:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 13:45:30,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:30,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339377298] [2024-11-13 13:45:30,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339377298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:30,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440214106] [2024-11-13 13:45:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:30,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:30,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:30,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:30,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:45:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:30,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:45:30,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 13:45:30,878 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:45:30,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440214106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:45:30,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:45:30,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-13 13:45:30,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957911114] [2024-11-13 13:45:30,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:45:30,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:45:30,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:30,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:45:30,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:45:30,913 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 13:45:30,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:30,946 INFO L93 Difference]: Finished difference Result 50 states and 73 transitions. [2024-11-13 13:45:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:45:30,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-13 13:45:30,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:30,957 INFO L225 Difference]: With dead ends: 50 [2024-11-13 13:45:30,957 INFO L226 Difference]: Without dead ends: 23 [2024-11-13 13:45:30,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:45:30,965 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:30,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:45:30,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-13 13:45:31,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-13 13:45:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:31,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2024-11-13 13:45:31,024 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 29 [2024-11-13 13:45:31,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:31,024 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2024-11-13 13:45:31,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 13:45:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-11-13 13:45:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 13:45:31,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:31,029 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:31,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:45:31,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 13:45:31,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:31,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:31,234 INFO L85 PathProgramCache]: Analyzing trace with hash 721570803, now seen corresponding path program 1 times [2024-11-13 13:45:31,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:31,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746294135] [2024-11-13 13:45:31,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:31,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:31,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:45:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:31,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 13:45:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:31,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 13:45:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 13:45:31,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:31,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746294135] [2024-11-13 13:45:31,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746294135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:31,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099619376] [2024-11-13 13:45:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:31,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:31,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:31,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:31,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:45:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:31,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:45:31,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 13:45:31,733 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:45:31,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099619376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:45:31,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:45:31,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-13 13:45:31,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208134073] [2024-11-13 13:45:31,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:45:31,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:45:31,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:31,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:45:31,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:45:31,737 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 13:45:31,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:31,764 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2024-11-13 13:45:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:45:31,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-13 13:45:31,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:31,766 INFO L225 Difference]: With dead ends: 43 [2024-11-13 13:45:31,766 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 13:45:31,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:45:31,768 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:31,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 47 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:45:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 13:45:31,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-11-13 13:45:31,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2024-11-13 13:45:31,775 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 30 [2024-11-13 13:45:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:31,775 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-11-13 13:45:31,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 13:45:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-13 13:45:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 13:45:31,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:31,777 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:31,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:45:31,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:31,981 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:31,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:31,982 INFO L85 PathProgramCache]: Analyzing trace with hash -502999254, now seen corresponding path program 1 times [2024-11-13 13:45:31,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:31,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600000785] [2024-11-13 13:45:31,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:31,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:45:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-13 13:45:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 13:45:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 13:45:32,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:32,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600000785] [2024-11-13 13:45:32,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600000785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:32,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732581787] [2024-11-13 13:45:32,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:32,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:32,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:32,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:32,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:45:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:45:32,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 13:45:32,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:45:32,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732581787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:45:32,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:45:32,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 13:45:32,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726014705] [2024-11-13 13:45:32,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:45:32,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:45:32,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:32,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:45:32,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:45:32,517 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 13:45:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:32,540 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2024-11-13 13:45:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:45:32,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-13 13:45:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:32,544 INFO L225 Difference]: With dead ends: 41 [2024-11-13 13:45:32,544 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 13:45:32,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:45:32,546 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:32,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:45:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 13:45:32,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-13 13:45:32,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:32,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-13 13:45:32,552 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 39 [2024-11-13 13:45:32,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:32,554 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-13 13:45:32,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 13:45:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-13 13:45:32,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 13:45:32,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:32,555 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:32,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 13:45:32,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:32,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:32,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:32,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2094373106, now seen corresponding path program 1 times [2024-11-13 13:45:32,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:32,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735555994] [2024-11-13 13:45:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:45:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-13 13:45:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 13:45:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 13:45:32,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:32,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735555994] [2024-11-13 13:45:32,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735555994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:32,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261961132] [2024-11-13 13:45:32,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:32,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:32,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:32,969 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:32,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:45:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:33,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:45:33,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 13:45:33,113 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:45:33,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261961132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:45:33,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:45:33,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-11-13 13:45:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287019228] [2024-11-13 13:45:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:45:33,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:45:33,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:45:33,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:45:33,116 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 13:45:33,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:33,137 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2024-11-13 13:45:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:45:33,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-13 13:45:33,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:33,138 INFO L225 Difference]: With dead ends: 50 [2024-11-13 13:45:33,139 INFO L226 Difference]: Without dead ends: 30 [2024-11-13 13:45:33,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:45:33,140 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:33,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:45:33,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-13 13:45:33,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-13 13:45:33,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2024-11-13 13:45:33,147 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 40 [2024-11-13 13:45:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:33,147 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2024-11-13 13:45:33,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 13:45:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2024-11-13 13:45:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 13:45:33,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:33,149 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:33,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:45:33,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:33,353 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:33,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:33,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2077853167, now seen corresponding path program 1 times [2024-11-13 13:45:33,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:33,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883849400] [2024-11-13 13:45:33,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:33,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:33,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:45:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:33,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-13 13:45:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:33,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 13:45:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 13:45:33,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:33,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883849400] [2024-11-13 13:45:33,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883849400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:33,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817855715] [2024-11-13 13:45:33,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:33,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:33,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:33,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:33,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:45:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:33,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:45:33,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:45:33,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:45:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 13:45:33,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817855715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:45:33,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:45:33,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-13 13:45:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059549848] [2024-11-13 13:45:33,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:45:33,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:45:33,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:33,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:45:33,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:45:33,791 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-13 13:45:33,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:33,858 INFO L93 Difference]: Finished difference Result 63 states and 86 transitions. [2024-11-13 13:45:33,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:45:33,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2024-11-13 13:45:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:33,860 INFO L225 Difference]: With dead ends: 63 [2024-11-13 13:45:33,860 INFO L226 Difference]: Without dead ends: 37 [2024-11-13 13:45:33,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:45:33,862 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:33,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:45:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-13 13:45:33,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-13 13:45:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:33,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2024-11-13 13:45:33,870 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 40 [2024-11-13 13:45:33,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:33,870 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2024-11-13 13:45:33,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-13 13:45:33,870 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-13 13:45:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 13:45:33,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:33,872 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:33,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 13:45:34,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:34,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:34,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1595029010, now seen corresponding path program 2 times [2024-11-13 13:45:34,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:34,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988827622] [2024-11-13 13:45:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:34,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:34,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 13:45:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:34,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 13:45:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:34,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 13:45:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 13:45:34,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:34,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988827622] [2024-11-13 13:45:34,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988827622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:34,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368475541] [2024-11-13 13:45:34,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:45:34,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:34,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:34,218 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:34,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:45:34,356 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:45:34,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:45:34,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:45:34,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 13:45:34,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:45:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 13:45:34,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368475541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:45:34,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:45:34,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 9 [2024-11-13 13:45:34,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847973667] [2024-11-13 13:45:34,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:45:34,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:45:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:34,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:45:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:45:34,550 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 13:45:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:34,631 INFO L93 Difference]: Finished difference Result 69 states and 90 transitions. [2024-11-13 13:45:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:45:34,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2024-11-13 13:45:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:34,633 INFO L225 Difference]: With dead ends: 69 [2024-11-13 13:45:34,633 INFO L226 Difference]: Without dead ends: 40 [2024-11-13 13:45:34,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:45:34,634 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:34,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 125 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:45:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-13 13:45:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2024-11-13 13:45:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:34,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2024-11-13 13:45:34,643 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 52 [2024-11-13 13:45:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:34,643 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2024-11-13 13:45:34,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 13:45:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2024-11-13 13:45:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:45:34,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:34,649 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 6, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:34,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:45:34,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 13:45:34,850 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:34,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:34,850 INFO L85 PathProgramCache]: Analyzing trace with hash -791571664, now seen corresponding path program 1 times [2024-11-13 13:45:34,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:34,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652826381] [2024-11-13 13:45:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:34,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:34,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:45:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 13:45:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:45:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,029 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-13 13:45:35,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:35,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652826381] [2024-11-13 13:45:35,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652826381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:35,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824166378] [2024-11-13 13:45:35,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:35,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:35,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:35,033 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:35,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:45:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:45:35,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-13 13:45:35,249 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:45:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 5 proven. 81 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:45:35,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824166378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:45:35,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:45:35,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 7 [2024-11-13 13:45:35,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369649536] [2024-11-13 13:45:35,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:45:35,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:45:35,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:35,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:45:35,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:45:35,324 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 13:45:35,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:35,397 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2024-11-13 13:45:35,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:45:35,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-11-13 13:45:35,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:35,400 INFO L225 Difference]: With dead ends: 64 [2024-11-13 13:45:35,400 INFO L226 Difference]: Without dead ends: 39 [2024-11-13 13:45:35,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:45:35,401 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:35,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 106 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:45:35,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-13 13:45:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-13 13:45:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2024-11-13 13:45:35,417 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 62 [2024-11-13 13:45:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:35,417 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2024-11-13 13:45:35,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 13:45:35,417 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2024-11-13 13:45:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 13:45:35,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:35,419 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:35,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 13:45:35,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 13:45:35,619 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:35,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash 551347185, now seen corresponding path program 2 times [2024-11-13 13:45:35,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:35,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788046070] [2024-11-13 13:45:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:45:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 13:45:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 13:45:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 13:45:35,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:35,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788046070] [2024-11-13 13:45:35,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788046070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:35,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552784174] [2024-11-13 13:45:35,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:45:35,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:35,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:35,848 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:35,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:45:36,014 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:45:36,014 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:45:36,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:45:36,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 116 proven. 22 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-13 13:45:36,121 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:45:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-13 13:45:36,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552784174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:45:36,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:45:36,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 10 [2024-11-13 13:45:36,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119494629] [2024-11-13 13:45:36,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:45:36,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:45:36,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:36,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:45:36,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:45:36,253 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 13:45:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:36,337 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2024-11-13 13:45:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:45:36,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-13 13:45:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:36,343 INFO L225 Difference]: With dead ends: 72 [2024-11-13 13:45:36,343 INFO L226 Difference]: Without dead ends: 43 [2024-11-13 13:45:36,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 140 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:45:36,345 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:36,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 84 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:45:36,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-13 13:45:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-13 13:45:36,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 38 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2024-11-13 13:45:36,359 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 72 [2024-11-13 13:45:36,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:36,364 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-13 13:45:36,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 13:45:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2024-11-13 13:45:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 13:45:36,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:36,366 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 9, 6, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:36,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 13:45:36,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 13:45:36,567 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:36,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:36,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1421846130, now seen corresponding path program 3 times [2024-11-13 13:45:36,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:36,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784487429] [2024-11-13 13:45:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:36,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:36,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:45:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:36,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 13:45:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:36,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 13:45:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:45:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-13 13:45:36,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:45:36,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784487429] [2024-11-13 13:45:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784487429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:45:36,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742891601] [2024-11-13 13:45:36,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:45:36,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:36,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:36,867 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:36,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:45:37,049 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-13 13:45:37,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:45:37,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:45:37,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:45:37,080 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 180 proven. 6 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-13 13:45:37,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:45:37,140 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-13 13:45:37,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742891601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:45:37,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:45:37,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-11-13 13:45:37,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887535505] [2024-11-13 13:45:37,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:45:37,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:45:37,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:45:37,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:45:37,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:45:37,143 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 13:45:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:45:37,168 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2024-11-13 13:45:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:45:37,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 82 [2024-11-13 13:45:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:45:37,170 INFO L225 Difference]: With dead ends: 70 [2024-11-13 13:45:37,170 INFO L226 Difference]: Without dead ends: 44 [2024-11-13 13:45:37,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:45:37,172 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:45:37,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:45:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-13 13:45:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-13 13:45:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 39 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:45:37,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2024-11-13 13:45:37,179 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 82 [2024-11-13 13:45:37,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:45:37,179 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2024-11-13 13:45:37,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 13:45:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2024-11-13 13:45:37,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 13:45:37,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:37,181 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 9, 6, 5, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:37,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 13:45:37,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-13 13:45:37,384 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:37,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash 115871018, now seen corresponding path program 4 times [2024-11-13 13:45:37,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:37,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747336280] [2024-11-13 13:45:37,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:37,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:45:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 13:45:37,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31291208] [2024-11-13 13:45:37,720 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 13:45:37,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:45:37,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:37,722 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:45:37,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:45:38,214 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 13:45:38,214 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-13 13:45:38,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:45:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:45:38,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:45:38,422 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:45:38,424 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:45:38,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 13:45:38,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:45:38,634 INFO L407 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1] [2024-11-13 13:45:38,754 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:45:38,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:45:38 BoogieIcfgContainer [2024-11-13 13:45:38,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:45:38,764 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:45:38,764 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:45:38,765 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:45:38,766 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:45:29" (3/4) ... [2024-11-13 13:45:38,767 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 13:45:38,868 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:45:38,868 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:45:38,869 INFO L158 Benchmark]: Toolchain (without parser) took 10052.89ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 94.1MB in the beginning and 93.2MB in the end (delta: 938.8kB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-13 13:45:38,869 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:45:38,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.85ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 82.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:45:38,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.90ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:45:38,870 INFO L158 Benchmark]: Boogie Preprocessor took 69.35ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:45:38,871 INFO L158 Benchmark]: RCFGBuilder took 469.75ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.1MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:45:38,871 INFO L158 Benchmark]: TraceAbstraction took 9000.15ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 66.5MB in the beginning and 97.5MB in the end (delta: -31.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:45:38,872 INFO L158 Benchmark]: Witness Printer took 103.78ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 93.2MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:45:38,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.85ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 82.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.90ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.35ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 469.75ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.1MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9000.15ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 66.5MB in the beginning and 97.5MB in the end (delta: -31.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 103.78ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 93.2MB in the end (delta: 4.4MB). 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 - CounterExampleResult [Line: 61]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int x[5]; [L43] CALL init_nondet(x) [L16] int i; [L17] i = 0 VAL [i=0, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=1, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=2, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=3, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=4, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=5, x={3:0}] [L17] COND FALSE !(i < 5) VAL [x={3:0}] [L43] RET init_nondet(x) [L44] int temp; [L45] int ret; [L46] int ret2; [L47] int ret5; VAL [x={3:0}] [L49] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 VAL [\old(x)={3:0}, cnt=1, i=3, ret=-2, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=4, ret=-2, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=1, i=4, ret=-2, x={3:0}] [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 VAL [\old(x)={3:0}, cnt=2, i=4, ret=-3, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=5, ret=-3, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=2, ret=-3, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; VAL [\old(x)={3:0}, \result=-1, x={3:0}] [L49] RET, EXPR rangesum(x) VAL [x={3:0}] [L49] ret = rangesum(x) [L51] EXPR x[0] [L51] temp=x[0] [L51] EXPR x[1] [L51] x[0] = x[1] [L51] x[1] = temp [L52] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 VAL [\old(x)={3:0}, cnt=1, i=3, ret=-2, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=4, ret=-2, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=1, i=4, ret=-2, x={3:0}] [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 VAL [\old(x)={3:0}, cnt=2, i=4, ret=-3, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=5, ret=-3, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=2, ret=-3, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; VAL [\old(x)={3:0}, \result=-1, x={3:0}] [L52] RET, EXPR rangesum(x) VAL [ret=-1, x={3:0}] [L52] ret2 = rangesum(x) [L53] EXPR x[0] [L53] temp=x[0] [L54] int i =0 ; VAL [i=0, ret2=-1, ret=-1, temp=8, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=1, ret2=-1, ret=-1, temp=8, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=2, ret2=-1, ret=-1, temp=8, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=3, ret2=-1, ret=-1, temp=8, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=4, ret2=-1, ret=-1, temp=8, x={3:0}] [L54] COND FALSE !(i<5 -1) VAL [ret2=-1, ret=-1, temp=8, x={3:0}] [L57] x[5 -1] = temp [L58] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L29] COND FALSE !(i > 5/2) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 VAL [\old(x)={3:0}, cnt=1, i=3, ret=-1, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=4, ret=-1, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=1, i=4, ret=-1, x={3:0}] [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 VAL [\old(x)={3:0}, cnt=2, i=4, ret=7, x={3:0}] [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=5, ret=7, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=2, ret=7, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; VAL [\old(x)={3:0}, \result=3, x={3:0}] [L58] RET, EXPR rangesum(x) VAL [ret2=-1, ret=-1, x={3:0}] [L58] ret5 = rangesum(x) [L60] COND TRUE ret != ret2 || ret !=ret5 VAL [x={3:0}] [L61] reach_error() VAL [x={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 10, TraceHistogramMax: 15, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 683 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 453 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 230 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 838 GetRequests, 777 SyntacticMatches, 16 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=9, InterpolantAutomatonStates: 52, 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, 9 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1058 NumberOfCodeBlocks, 1021 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1177 ConstructedInterpolants, 0 QuantifiedInterpolants, 1391 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1710 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 23 InterpolantComputations, 4 PerfectInterpolantSequences, 2680/3059 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 proved your program to be incorrect! [2024-11-13 13:45:38,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a74d7fb-8656-41e6-977d-006eba3725e0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE