./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.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_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/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_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/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_19ea9be1-1449-4ab2-aab0-a756fa23e391/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 8c033995a52b99c0430cec79c98c5775553fa5b7cf687f2e866f081cb29fa4f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:44:29,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:44:29,241 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:44:29,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:44:29,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:44:29,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:44:29,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:44:29,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:44:29,285 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:44:29,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:44:29,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:44:29,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:44:29,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:44:29,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:44:29,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:44:29,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:44:29,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:44:29,289 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:44:29,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:44:29,289 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:44:29,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:44:29,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:44:29,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:44:29,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:44:29,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:44:29,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:44:29,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:44:29,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:44:29,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:44:29,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:44:29,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:44:29,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:44:29,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:44:29,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:44:29,292 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_19ea9be1-1449-4ab2-aab0-a756fa23e391/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 -> 8c033995a52b99c0430cec79c98c5775553fa5b7cf687f2e866f081cb29fa4f7 [2024-11-13 15:44:29,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:44:29,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:44:29,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:44:29,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:44:29,631 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:44:29,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i Unable to find full path for "g++" [2024-11-13 15:44:31,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:44:31,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:44:31,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i [2024-11-13 15:44:31,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data/f9a2ef8f9/5359fdd0cb7843f6ae91caae05c5e47c/FLAG46bda5f7a [2024-11-13 15:44:31,961 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data/f9a2ef8f9/5359fdd0cb7843f6ae91caae05c5e47c [2024-11-13 15:44:31,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:44:31,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:44:31,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:44:31,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:44:31,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:44:31,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:44:31" (1/1) ... [2024-11-13 15:44:31,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53785f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:31, skipping insertion in model container [2024-11-13 15:44:31,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:44:31" (1/1) ... [2024-11-13 15:44:31,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:44:32,148 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_19ea9be1-1449-4ab2-aab0-a756fa23e391/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i[915,928] [2024-11-13 15:44:32,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:44:32,213 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:44:32,223 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_19ea9be1-1449-4ab2-aab0-a756fa23e391/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i[915,928] [2024-11-13 15:44:32,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:44:32,259 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:44:32,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32 WrapperNode [2024-11-13 15:44:32,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:44:32,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:44:32,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:44:32,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:44:32,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,322 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-13 15:44:32,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:44:32,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:44:32,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:44:32,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:44:32,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,363 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:44:32,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:44:32,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:44:32,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:44:32,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:44:32,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (1/1) ... [2024-11-13 15:44:32,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:44:32,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:32,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:44:32,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:44:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:44:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:44:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:44:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:44:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:44:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:44:32,525 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:44:32,527 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:44:32,992 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-13 15:44:32,993 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:44:33,006 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:44:33,006 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:44:33,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:44:33 BoogieIcfgContainer [2024-11-13 15:44:33,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:44:33,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:44:33,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:44:33,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:44:33,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:44:31" (1/3) ... [2024-11-13 15:44:33,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13412ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:44:33, skipping insertion in model container [2024-11-13 15:44:33,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:32" (2/3) ... [2024-11-13 15:44:33,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13412ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:44:33, skipping insertion in model container [2024-11-13 15:44:33,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:44:33" (3/3) ... [2024-11-13 15:44:33,022 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-64.i [2024-11-13 15:44:33,043 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:44:33,047 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-64.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:44:33,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:44:33,112 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;@69883364, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:44:33,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:44:33,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:44:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 15:44:33,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:33,129 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:33,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:33,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:33,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1801240652, now seen corresponding path program 1 times [2024-11-13 15:44:33,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:33,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872715750] [2024-11-13 15:44:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:33,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:44:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:44:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:44:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:44:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:44:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:44:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 15:44:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 15:44:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:44:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 15:44:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:44:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:44:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 15:44:33,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872715750] [2024-11-13 15:44:33,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872715750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:33,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:33,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:44:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035518548] [2024-11-13 15:44:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:33,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:44:33,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:44:33,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:44:33,548 INFO L87 Difference]: Start difference. First operand has 54 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:44:33,570 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2024-11-13 15:44:33,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:44:33,572 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2024-11-13 15:44:33,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:44:33,577 INFO L225 Difference]: With dead ends: 99 [2024-11-13 15:44:33,578 INFO L226 Difference]: Without dead ends: 48 [2024-11-13 15:44:33,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:44:33,583 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:44:33,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:44:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-13 15:44:33,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-13 15:44:33,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:44:33,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-11-13 15:44:33,622 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 82 [2024-11-13 15:44:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:44:33,623 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-11-13 15:44:33,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-11-13 15:44:33,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 15:44:33,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:33,626 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:33,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:44:33,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:33,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:33,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1885275444, now seen corresponding path program 1 times [2024-11-13 15:44:33,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:33,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477620995] [2024-11-13 15:44:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:33,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:44:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:44:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:44:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 15:44:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:44:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:44:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 15:44:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 15:44:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:44:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 15:44:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:44:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 15:44:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 15:44:34,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:34,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477620995] [2024-11-13 15:44:34,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477620995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:34,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:34,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:44:34,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464210855] [2024-11-13 15:44:34,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:34,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:44:34,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:44:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:44:34,683 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:44:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:44:35,045 INFO L93 Difference]: Finished difference Result 153 states and 216 transitions. [2024-11-13 15:44:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:44:35,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 82 [2024-11-13 15:44:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:44:35,048 INFO L225 Difference]: With dead ends: 153 [2024-11-13 15:44:35,048 INFO L226 Difference]: Without dead ends: 108 [2024-11-13 15:44:35,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:44:35,053 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 137 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:44:35,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 196 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:44:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-13 15:44:35,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 78. [2024-11-13 15:44:35,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 15:44:35,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2024-11-13 15:44:35,086 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 82 [2024-11-13 15:44:35,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:44:35,087 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions. [2024-11-13 15:44:35,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:44:35,087 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2024-11-13 15:44:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 15:44:35,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:35,091 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:35,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:44:35,091 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:35,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:35,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1083813585, now seen corresponding path program 1 times [2024-11-13 15:44:35,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:35,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131662134] [2024-11-13 15:44:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:35,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:44:35,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832053349] [2024-11-13 15:44:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:35,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:35,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:35,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:44:35,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:44:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:35,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:44:35,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:35,769 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:44:35,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:44:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 15:44:36,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:44:36,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131662134] [2024-11-13 15:44:36,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:44:36,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832053349] [2024-11-13 15:44:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832053349] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:44:36,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:44:36,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-13 15:44:36,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635435856] [2024-11-13 15:44:36,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:36,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:44:36,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:44:36,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:44:36,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:44:36,032 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:44:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:44:36,505 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2024-11-13 15:44:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:44:36,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2024-11-13 15:44:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:44:36,508 INFO L225 Difference]: With dead ends: 147 [2024-11-13 15:44:36,508 INFO L226 Difference]: Without dead ends: 88 [2024-11-13 15:44:36,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:44:36,513 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:44:36,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 146 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:44:36,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-13 15:44:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 78. [2024-11-13 15:44:36,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 54 states have internal predecessors, (66), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 15:44:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2024-11-13 15:44:36,537 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 83 [2024-11-13 15:44:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:44:36,537 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2024-11-13 15:44:36,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 15:44:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2024-11-13 15:44:36,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 15:44:36,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:36,540 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:36,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:44:36,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:36,743 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:36,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash 691193777, now seen corresponding path program 1 times [2024-11-13 15:44:36,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:44:36,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707246190] [2024-11-13 15:44:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:44:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:44:36,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328804350] [2024-11-13 15:44:36,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:36,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:36,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:36,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:44:36,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:44:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:44:36,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:44:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:44:37,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:44:37,010 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:44:37,012 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:44:37,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:44:37,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:37,220 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:44:37,293 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:44:37,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:44:37 BoogieIcfgContainer [2024-11-13 15:44:37,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:44:37,298 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:44:37,298 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:44:37,298 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:44:37,299 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:44:33" (3/4) ... [2024-11-13 15:44:37,301 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:44:37,302 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:44:37,304 INFO L158 Benchmark]: Toolchain (without parser) took 5335.99ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 78.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-11-13 15:44:37,304 INFO L158 Benchmark]: CDTParser took 1.32ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:44:37,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.27ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:44:37,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.50ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 77.3MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:44:37,308 INFO L158 Benchmark]: Boogie Preprocessor took 62.39ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 74.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:44:37,308 INFO L158 Benchmark]: RCFGBuilder took 623.24ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 55.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:44:37,308 INFO L158 Benchmark]: TraceAbstraction took 4283.48ms. Allocated memory is still 117.4MB. Free memory was 54.6MB in the beginning and 78.9MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:44:37,309 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.9MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:44:37,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.27ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.50ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 77.3MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.39ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 74.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 623.24ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 55.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4283.48ms. Allocated memory is still 117.4MB. Free memory was 54.6MB in the beginning and 78.9MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.9MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 64, overapproximation of someBinaryDOUBLEComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.9; [L23] unsigned long int var_1_3 = 2941876006; [L24] double var_1_5 = 127.422; [L25] unsigned short int var_1_6 = 10; [L26] unsigned char var_1_7 = 1; [L27] unsigned long int var_1_9 = 4; [L28] unsigned short int var_1_11 = 44699; [L29] signed short int var_1_13 = 2; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 16; [L32] float var_1_17 = 8.125; VAL [isInitial=0, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2941876006, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] FCALL updateLastVariables() [L90] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_ulong() [L61] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L61] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L62] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L62] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L63] var_1_5 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4] [L64] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=1, var_1_9=4] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4] [L66] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_9=4] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4] [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=4] [L68] var_1_9 = __VERIFIER_nondet_ulong() [L69] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L69] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L70] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L70] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0] [L71] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L71] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L72] var_1_11 = __VERIFIER_nondet_ushort() [L73] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L73] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L74] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L75] var_1_16 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L76] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L77] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=65/8, var_1_1=9/10, var_1_3=2147483647, var_1_6=10, var_1_7=0, var_1_9=1] [L90] RET updateVariables() [L91] CALL step() [L36] var_1_15 = var_1_16 [L37] var_1_17 = var_1_5 VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1] [L38] EXPR var_1_15 & var_1_15 VAL [isInitial=1, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=10, var_1_7=0, var_1_9=1] [L38] unsigned long int stepLocal_2 = var_1_3 * (var_1_15 & var_1_15); [L39] COND FALSE !(\read(var_1_7)) [L46] var_1_6 = (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1) VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=2, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L48] var_1_13 = var_1_15 [L49] signed long int stepLocal_1 = var_1_6 * var_1_15; [L50] unsigned char stepLocal_0 = var_1_15; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L51] COND TRUE stepLocal_0 <= (var_1_3 - var_1_6) VAL [isInitial=1, stepLocal_1=0, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=9/10, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L52] COND FALSE !(var_1_3 < stepLocal_1) [L55] var_1_1 = var_1_5 VAL [isInitial=1, stepLocal_2=0, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L91] RET step() [L92] CALL, EXPR property() [L82] EXPR ((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1)))) VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L82-L83] return (((((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1))))) && (var_1_13 == ((signed short int) var_1_15))) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((float) var_1_5)) ; [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_11=32767, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=2, var_1_3=2147483647, var_1_5=2, var_1_6=1, var_1_7=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 409 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 204 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 326 ConstructedInterpolants, 3 QuantifiedInterpolants, 800 SizeOfPredicates, 4 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1023/1056 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 15:44:37,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/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_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/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 8c033995a52b99c0430cec79c98c5775553fa5b7cf687f2e866f081cb29fa4f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:44:39,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:44:40,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:44:40,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:44:40,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:44:40,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:44:40,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:44:40,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:44:40,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:44:40,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:44:40,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:44:40,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:44:40,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:44:40,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:44:40,062 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:44:40,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:44:40,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:44:40,063 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:44:40,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:44:40,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:44:40,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:44:40,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:44:40,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:44:40,064 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:44:40,064 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:44:40,064 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:44:40,064 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:44:40,064 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:44:40,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:44:40,064 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:44:40,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:44:40,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:44:40,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:44:40,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:44:40,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:44:40,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:44:40,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:44:40,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:44:40,066 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:44:40,066 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:44:40,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:44:40,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:44:40,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:44:40,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:44:40,067 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_19ea9be1-1449-4ab2-aab0-a756fa23e391/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 -> 8c033995a52b99c0430cec79c98c5775553fa5b7cf687f2e866f081cb29fa4f7 [2024-11-13 15:44:40,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:44:40,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:44:40,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:44:40,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:44:40,408 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:44:40,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i Unable to find full path for "g++" [2024-11-13 15:44:42,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:44:42,643 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:44:42,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i [2024-11-13 15:44:42,652 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data/3330e745d/cdd8878fb1b74a1ab2aeb31a8d5b94f3/FLAGfe97a25fe [2024-11-13 15:44:42,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/data/3330e745d/cdd8878fb1b74a1ab2aeb31a8d5b94f3 [2024-11-13 15:44:42,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:44:42,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:44:42,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:44:42,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:44:42,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:44:42,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:42,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b421e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42, skipping insertion in model container [2024-11-13 15:44:42,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:42,696 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:44:42,842 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_19ea9be1-1449-4ab2-aab0-a756fa23e391/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i[915,928] [2024-11-13 15:44:42,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:44:42,917 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:44:42,928 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_19ea9be1-1449-4ab2-aab0-a756fa23e391/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-64.i[915,928] [2024-11-13 15:44:42,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:44:42,983 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:44:42,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42 WrapperNode [2024-11-13 15:44:42,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:44:42,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:44:42,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:44:42,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:44:42,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,041 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-13 15:44:43,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:44:43,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:44:43,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:44:43,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:44:43,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,078 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:44:43,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:44:43,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:44:43,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:44:43,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:44:43,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (1/1) ... [2024-11-13 15:44:43,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:44:43,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:43,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:44:43,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:44:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:44:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:44:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:44:43,172 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:44:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:44:43,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:44:43,270 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:44:43,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:44:43,892 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-13 15:44:43,893 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:44:43,904 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:44:43,904 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:44:43,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:44:43 BoogieIcfgContainer [2024-11-13 15:44:43,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:44:43,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:44:43,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:44:43,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:44:43,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:44:42" (1/3) ... [2024-11-13 15:44:43,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60be7021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:44:43, skipping insertion in model container [2024-11-13 15:44:43,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:44:42" (2/3) ... [2024-11-13 15:44:43,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60be7021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:44:43, skipping insertion in model container [2024-11-13 15:44:43,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:44:43" (3/3) ... [2024-11-13 15:44:43,917 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-64.i [2024-11-13 15:44:43,933 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:44:43,934 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-64.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:44:43,993 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:44:44,005 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;@48f46b14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:44:44,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:44:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:44:44,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:44:44,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:44,019 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:44,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:44,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2047350792, now seen corresponding path program 1 times [2024-11-13 15:44:44,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:44:44,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21976784] [2024-11-13 15:44:44,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:44,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:44:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:44:44,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:44:44,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 15:44:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:44,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:44:44,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-13 15:44:44,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:44:44,338 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:44:44,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21976784] [2024-11-13 15:44:44,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21976784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:44:44,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:44:44,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:44:44,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797039243] [2024-11-13 15:44:44,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:44:44,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:44:44,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:44:44,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:44:44,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:44:44,365 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:44:44,383 INFO L93 Difference]: Finished difference Result 77 states and 126 transitions. [2024-11-13 15:44:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:44:44,385 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-13 15:44:44,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:44:44,390 INFO L225 Difference]: With dead ends: 77 [2024-11-13 15:44:44,390 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 15:44:44,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:44:44,396 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:44:44,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:44:44,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 15:44:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-13 15:44:44,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:44:44,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-13 15:44:44,434 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 78 [2024-11-13 15:44:44,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:44:44,434 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-13 15:44:44,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-13 15:44:44,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:44:44,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:44,438 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:44,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 15:44:44,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:44:44,639 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:44,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:44,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1433562488, now seen corresponding path program 1 times [2024-11-13 15:44:44,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:44:44,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866143056] [2024-11-13 15:44:44,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:44,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:44:44,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:44:44,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:44:44,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 15:44:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:44,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:44:44,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:44:45,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:44:45,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:44:45,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866143056] [2024-11-13 15:44:45,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866143056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:44:45,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429070048] [2024-11-13 15:44:45,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:45,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:45,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:45,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:44:45,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:44:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:45,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:44:45,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:45,900 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:44:45,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:44:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429070048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:44:45,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:44:45,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-13 15:44:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604480974] [2024-11-13 15:44:45,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:44:45,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:44:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:44:45,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:44:45,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:44:45,958 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:44:47,035 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions. [2024-11-13 15:44:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:44:47,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-13 15:44:47,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:44:47,043 INFO L225 Difference]: With dead ends: 90 [2024-11-13 15:44:47,043 INFO L226 Difference]: Without dead ends: 55 [2024-11-13 15:44:47,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:44:47,046 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:44:47,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 89 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:44:47,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-13 15:44:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2024-11-13 15:44:47,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:44:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2024-11-13 15:44:47,057 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 78 [2024-11-13 15:44:47,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:44:47,058 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2024-11-13 15:44:47,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2024-11-13 15:44:47,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 15:44:47,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:47,060 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:47,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 15:44:47,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:44:47,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:47,461 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:47,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1255203852, now seen corresponding path program 1 times [2024-11-13 15:44:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:44:47,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287983853] [2024-11-13 15:44:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:47,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:44:47,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:44:47,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:44:47,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 15:44:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:47,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:44:47,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:48,040 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:44:48,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:44:48,261 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:44:48,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287983853] [2024-11-13 15:44:48,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287983853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:44:48,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161900135] [2024-11-13 15:44:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:48,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:48,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:44:48,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:44:48,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:44:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:48,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:44:48,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:44:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 15:44:48,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:44:48,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161900135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:44:48,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:44:48,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-13 15:44:48,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390992555] [2024-11-13 15:44:48,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:44:48,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:44:48,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:44:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:44:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:44:48,824 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:44:50,232 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions. [2024-11-13 15:44:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:44:50,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-11-13 15:44:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:44:50,242 INFO L225 Difference]: With dead ends: 83 [2024-11-13 15:44:50,242 INFO L226 Difference]: Without dead ends: 44 [2024-11-13 15:44:50,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:44:50,244 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:44:50,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:44:50,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-13 15:44:50,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-11-13 15:44:50,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 15:44:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2024-11-13 15:44:50,256 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 79 [2024-11-13 15:44:50,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:44:50,257 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2024-11-13 15:44:50,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 15:44:50,257 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2024-11-13 15:44:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 15:44:50,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:44:50,258 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:44:50,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 15:44:50,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:44:50,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:44:50,659 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:44:50,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:44:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1257050894, now seen corresponding path program 1 times [2024-11-13 15:44:50,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:44:50,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669117006] [2024-11-13 15:44:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:44:50,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:44:50,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:44:50,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:44:50,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-13 15:44:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:44:50,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 15:44:50,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-13 15:45:18,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:46:43,579 WARN L286 SmtUtils]: Spent 14.88s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:47:40,762 WARN L286 SmtUtils]: Spent 11.77s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:49:00,704 WARN L286 SmtUtils]: Spent 11.62s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:49:39,538 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:50:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 15:50:01,949 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:50:01,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669117006] [2024-11-13 15:50:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669117006] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:50:01,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:50:01,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-13 15:50:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769453417] [2024-11-13 15:50:01,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:50:01,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 15:50:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:50:01,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 15:50:01,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:50:01,953 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 15:50:18,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:19,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:28,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:30,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:31,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:33,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:34,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:35,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:38,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:40,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:41,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:43,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:46,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:47,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:54,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:56,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:50:58,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:00,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:02,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:05,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:09,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:13,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:16,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:31,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:41,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:47,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:51:52,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:52:02,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:52:04,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:52:05,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-13 15:52:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:52:05,590 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2024-11-13 15:52:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 15:52:05,600 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 79 [2024-11-13 15:52:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:52:05,602 INFO L225 Difference]: With dead ends: 83 [2024-11-13 15:52:05,602 INFO L226 Difference]: Without dead ends: 81 [2024-11-13 15:52:05,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 232.2s TimeCoverageRelationStatistics Valid=267, Invalid=725, Unknown=0, NotChecked=0, Total=992 [2024-11-13 15:52:05,604 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 135 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:52:05,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 217 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 70.6s Time] [2024-11-13 15:52:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-13 15:52:05,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64. [2024-11-13 15:52:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:52:05,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2024-11-13 15:52:05,625 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 79 [2024-11-13 15:52:05,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:52:05,625 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2024-11-13 15:52:05,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 15:52:05,626 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2024-11-13 15:52:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-13 15:52:05,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:52:05,628 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:52:05,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-13 15:52:05,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:52:05,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:52:05,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:52:05,830 INFO L85 PathProgramCache]: Analyzing trace with hash -236501455, now seen corresponding path program 1 times [2024-11-13 15:52:05,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:52:05,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820264886] [2024-11-13 15:52:05,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:52:05,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:52:05,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:52:05,838 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:52:05,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 15:52:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:52:06,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 15:52:06,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:53:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 170 proven. 36 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-13 15:53:07,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:54:16,144 WARN L286 SmtUtils]: Spent 7.65s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:56:59,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:56:59,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820264886] [2024-11-13 15:56:59,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820264886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:56:59,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377804555] [2024-11-13 15:56:59,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:59,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:59,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:59,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:56:59,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19ea9be1-1449-4ab2-aab0-a756fa23e391/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:57:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:00,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 15:57:00,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:59:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 166 proven. 60 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 15:59:08,601 INFO L311 TraceCheckSpWp]: Computing backward predicates...