./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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 64bit --witnessprinter.graph.data.programhash 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:50:41,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:50:41,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 13:50:41,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:50:41,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:50:41,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:50:41,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:50:41,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:50:41,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:50:41,282 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:50:41,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:50:41,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:50:41,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:50:41,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:50:41,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:50:41,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:50:41,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:50:41,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:50:41,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:50:41,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:50:41,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:50:41,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:50:41,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:50:41,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:50:41,284 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:50:41,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:50:41,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:50:41,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:50:41,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:50:41,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:50:41,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:50:41,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:50:41,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:50:41,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:50:41,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:50:41,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:50:41,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:50:41,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:50:41,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:50:41,287 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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e [2024-11-13 13:50:41,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:50:41,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:50:41,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:50:41,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:50:41,655 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:50:41,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c Unable to find full path for "g++" [2024-11-13 13:50:43,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:50:43,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:50:43,937 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2024-11-13 13:50:43,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data/dc29aae15/1333b796068c4b24a7bdd8fdd5146b98/FLAG8f432e2f1 [2024-11-13 13:50:44,184 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data/dc29aae15/1333b796068c4b24a7bdd8fdd5146b98 [2024-11-13 13:50:44,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:50:44,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:50:44,189 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:50:44,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:50:44,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:50:44,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed66e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44, skipping insertion in model container [2024-11-13 13:50:44,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:50:44,357 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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1245,1258] [2024-11-13 13:50:44,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:50:44,422 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:50:44,434 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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1245,1258] [2024-11-13 13:50:44,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:50:44,511 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:50:44,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44 WrapperNode [2024-11-13 13:50:44,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:50:44,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:50:44,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:50:44,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:50:44,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,599 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 215 [2024-11-13 13:50:44,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:50:44,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:50:44,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:50:44,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:50:44,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,652 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 13:50:44,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:50:44,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:50:44,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:50:44,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:50:44,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (1/1) ... [2024-11-13 13:50:44,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:50:44,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:50:44,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:50:44,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:50:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:50:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:50:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:50:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:50:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:50:44,897 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:50:44,901 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:50:45,342 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-13 13:50:45,342 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:50:45,353 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:50:45,353 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:50:45,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:50:45 BoogieIcfgContainer [2024-11-13 13:50:45,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:50:45,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:50:45,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:50:45,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:50:45,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:50:44" (1/3) ... [2024-11-13 13:50:45,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d295ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:50:45, skipping insertion in model container [2024-11-13 13:50:45,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:50:44" (2/3) ... [2024-11-13 13:50:45,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d295ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:50:45, skipping insertion in model container [2024-11-13 13:50:45,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:50:45" (3/3) ... [2024-11-13 13:50:45,365 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b04.c [2024-11-13 13:50:45,385 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:50:45,386 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b04.c that has 1 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:50:45,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:50:45,470 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;@649458a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:50:45,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:50:45,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 45 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 13:50:45,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:45,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:45,486 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:45,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1343812480, now seen corresponding path program 1 times [2024-11-13 13:50:45,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:45,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607024662] [2024-11-13 13:50:45,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:45,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:46,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:46,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607024662] [2024-11-13 13:50:46,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607024662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:46,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:46,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:50:46,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745649738] [2024-11-13 13:50:46,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:46,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:50:46,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:46,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:50:46,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:50:46,277 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 45 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:46,319 INFO L93 Difference]: Finished difference Result 77 states and 111 transitions. [2024-11-13 13:50:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:50:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-13 13:50:46,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:46,328 INFO L225 Difference]: With dead ends: 77 [2024-11-13 13:50:46,329 INFO L226 Difference]: Without dead ends: 45 [2024-11-13 13:50:46,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:50:46,335 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:46,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:50:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-13 13:50:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-13 13:50:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 44 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2024-11-13 13:50:46,374 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 21 [2024-11-13 13:50:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:46,377 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-11-13 13:50:46,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:46,377 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2024-11-13 13:50:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 13:50:46,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:46,379 INFO L215 NwaCegarLoop]: trace histogram [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 13:50:46,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:50:46,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:46,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:46,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1293181337, now seen corresponding path program 1 times [2024-11-13 13:50:46,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:46,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978607915] [2024-11-13 13:50:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:46,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:46,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:46,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978607915] [2024-11-13 13:50:46,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978607915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:46,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:46,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:50:46,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856827421] [2024-11-13 13:50:46,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:46,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:50:46,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:46,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:50:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:50:46,609 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:46,658 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions. [2024-11-13 13:50:46,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:50:46,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-13 13:50:46,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:46,659 INFO L225 Difference]: With dead ends: 78 [2024-11-13 13:50:46,659 INFO L226 Difference]: Without dead ends: 47 [2024-11-13 13:50:46,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:50:46,660 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:46,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:50:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-13 13:50:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-13 13:50:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:46,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2024-11-13 13:50:46,671 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 22 [2024-11-13 13:50:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:46,671 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2024-11-13 13:50:46,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2024-11-13 13:50:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 13:50:46,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:46,674 INFO L215 NwaCegarLoop]: trace histogram [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 13:50:46,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:50:46,674 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:46,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:46,675 INFO L85 PathProgramCache]: Analyzing trace with hash 335949945, now seen corresponding path program 1 times [2024-11-13 13:50:46,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:46,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662412468] [2024-11-13 13:50:46,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:46,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:47,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:47,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662412468] [2024-11-13 13:50:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662412468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:47,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:50:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873076355] [2024-11-13 13:50:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:47,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:50:47,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:47,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:50:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:50:47,189 INFO L87 Difference]: Start difference. First operand 47 states and 65 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:47,245 INFO L93 Difference]: Finished difference Result 80 states and 110 transitions. [2024-11-13 13:50:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:50:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-13 13:50:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:47,248 INFO L225 Difference]: With dead ends: 80 [2024-11-13 13:50:47,248 INFO L226 Difference]: Without dead ends: 47 [2024-11-13 13:50:47,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:50:47,249 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 6 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:47,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 155 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:50:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-13 13:50:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-13 13:50:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.391304347826087) internal successors, (64), 46 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 64 transitions. [2024-11-13 13:50:47,257 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 64 transitions. Word has length 23 [2024-11-13 13:50:47,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:47,260 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 64 transitions. [2024-11-13 13:50:47,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:47,261 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2024-11-13 13:50:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 13:50:47,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:47,262 INFO L215 NwaCegarLoop]: trace histogram [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 13:50:47,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:50:47,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:47,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:47,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1561566688, now seen corresponding path program 1 times [2024-11-13 13:50:47,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:47,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935483236] [2024-11-13 13:50:47,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:47,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:47,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935483236] [2024-11-13 13:50:47,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935483236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:47,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:47,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:50:47,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782891200] [2024-11-13 13:50:47,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:47,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:50:47,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:47,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:50:47,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:50:47,840 INFO L87 Difference]: Start difference. First operand 47 states and 64 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:48,016 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2024-11-13 13:50:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:50:48,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-13 13:50:48,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:48,020 INFO L225 Difference]: With dead ends: 90 [2024-11-13 13:50:48,020 INFO L226 Difference]: Without dead ends: 57 [2024-11-13 13:50:48,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:50:48,021 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 68 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:48,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 304 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:50:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-13 13:50:48,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2024-11-13 13:50:48,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:48,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2024-11-13 13:50:48,028 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 24 [2024-11-13 13:50:48,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:48,028 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions. [2024-11-13 13:50:48,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:48,029 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2024-11-13 13:50:48,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 13:50:48,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:48,030 INFO L215 NwaCegarLoop]: trace histogram [1, 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 13:50:48,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:50:48,030 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:48,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:48,031 INFO L85 PathProgramCache]: Analyzing trace with hash -844580682, now seen corresponding path program 1 times [2024-11-13 13:50:48,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:48,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836266337] [2024-11-13 13:50:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:48,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:49,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:49,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836266337] [2024-11-13 13:50:49,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836266337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:49,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:49,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:50:49,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283387160] [2024-11-13 13:50:49,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:49,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:50:49,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:49,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:50:49,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:50:49,033 INFO L87 Difference]: Start difference. First operand 56 states and 76 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:49,294 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2024-11-13 13:50:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:50:49,295 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-13 13:50:49,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:49,296 INFO L225 Difference]: With dead ends: 103 [2024-11-13 13:50:49,296 INFO L226 Difference]: Without dead ends: 61 [2024-11-13 13:50:49,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:50:49,297 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:49,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 368 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:50:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-13 13:50:49,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2024-11-13 13:50:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 59 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:49,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2024-11-13 13:50:49,309 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 25 [2024-11-13 13:50:49,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:49,313 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2024-11-13 13:50:49,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:49,314 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2024-11-13 13:50:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 13:50:49,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:49,315 INFO L215 NwaCegarLoop]: trace histogram [1, 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 13:50:49,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:50:49,315 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:49,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:49,315 INFO L85 PathProgramCache]: Analyzing trace with hash -318785717, now seen corresponding path program 1 times [2024-11-13 13:50:49,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:49,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934410158] [2024-11-13 13:50:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:49,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:49,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:49,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934410158] [2024-11-13 13:50:49,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934410158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:49,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:49,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:49,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137582480] [2024-11-13 13:50:49,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:49,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:50:49,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:49,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:50:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:50:49,611 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:49,774 INFO L93 Difference]: Finished difference Result 135 states and 178 transitions. [2024-11-13 13:50:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:50:49,774 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-13 13:50:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:49,775 INFO L225 Difference]: With dead ends: 135 [2024-11-13 13:50:49,775 INFO L226 Difference]: Without dead ends: 89 [2024-11-13 13:50:49,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:49,776 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 40 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:49,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 120 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:50:49,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-13 13:50:49,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 62. [2024-11-13 13:50:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:49,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2024-11-13 13:50:49,790 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 25 [2024-11-13 13:50:49,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:49,791 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-11-13 13:50:49,791 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:49,791 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2024-11-13 13:50:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 13:50:49,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:49,792 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 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 13:50:49,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:50:49,792 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:49,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:49,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1152347839, now seen corresponding path program 1 times [2024-11-13 13:50:49,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:49,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294458718] [2024-11-13 13:50:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:50,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:50,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294458718] [2024-11-13 13:50:50,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294458718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:50,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:50,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147668236] [2024-11-13 13:50:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:50,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:50:50,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:50,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:50:50,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:50:50,108 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:50,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:50,150 INFO L93 Difference]: Finished difference Result 114 states and 152 transitions. [2024-11-13 13:50:50,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:50:50,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-13 13:50:50,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:50,151 INFO L225 Difference]: With dead ends: 114 [2024-11-13 13:50:50,152 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 13:50:50,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:50,152 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 51 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:50,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 161 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:50:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 13:50:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-13 13:50:50,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.328358208955224) internal successors, (89), 67 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 89 transitions. [2024-11-13 13:50:50,158 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 89 transitions. Word has length 26 [2024-11-13 13:50:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:50,158 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 89 transitions. [2024-11-13 13:50:50,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 89 transitions. [2024-11-13 13:50:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 13:50:50,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:50,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 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 13:50:50,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:50:50,159 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:50,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:50,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1970135151, now seen corresponding path program 1 times [2024-11-13 13:50:50,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:50,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873232086] [2024-11-13 13:50:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:50,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:50,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:50,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873232086] [2024-11-13 13:50:50,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873232086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:50,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:50:50,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:50:50,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660552353] [2024-11-13 13:50:50,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:50,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:50:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:50,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:50:50,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:50:50,407 INFO L87 Difference]: Start difference. First operand 68 states and 89 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:50,521 INFO L93 Difference]: Finished difference Result 132 states and 169 transitions. [2024-11-13 13:50:50,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:50:50,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-13 13:50:50,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:50,522 INFO L225 Difference]: With dead ends: 132 [2024-11-13 13:50:50,522 INFO L226 Difference]: Without dead ends: 80 [2024-11-13 13:50:50,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:50:50,524 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 23 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:50,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 128 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:50:50,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-13 13:50:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 70. [2024-11-13 13:50:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 91 transitions. [2024-11-13 13:50:50,529 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 91 transitions. Word has length 27 [2024-11-13 13:50:50,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:50,529 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 91 transitions. [2024-11-13 13:50:50,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2024-11-13 13:50:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 13:50:50,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:50,530 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:50:50,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:50:50,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:50,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:50,531 INFO L85 PathProgramCache]: Analyzing trace with hash 28055547, now seen corresponding path program 1 times [2024-11-13 13:50:50,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:50,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431115019] [2024-11-13 13:50:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:50,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:50,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:50,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431115019] [2024-11-13 13:50:50,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431115019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:50:50,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697089484] [2024-11-13 13:50:50,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:50,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:50:50,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:50:50,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:50:51,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:50:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:51,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 13:50:51,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:51,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:50:51,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697089484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:51,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:50:51,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-13 13:50:51,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870342728] [2024-11-13 13:50:51,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:51,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:50:51,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:51,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:50:51,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:50:51,518 INFO L87 Difference]: Start difference. First operand 70 states and 91 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:51,657 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2024-11-13 13:50:51,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:50:51,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-13 13:50:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:51,660 INFO L225 Difference]: With dead ends: 134 [2024-11-13 13:50:51,660 INFO L226 Difference]: Without dead ends: 82 [2024-11-13 13:50:51,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:50:51,661 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 70 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:51,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 93 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:50:51,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-13 13:50:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-13 13:50:51,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.271604938271605) internal successors, (103), 81 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 103 transitions. [2024-11-13 13:50:51,675 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 103 transitions. Word has length 41 [2024-11-13 13:50:51,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:51,675 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 103 transitions. [2024-11-13 13:50:51,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 103 transitions. [2024-11-13 13:50:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 13:50:51,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:51,681 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:50:51,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:50:51,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:50:51,885 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:51,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:51,886 INFO L85 PathProgramCache]: Analyzing trace with hash -937324527, now seen corresponding path program 1 times [2024-11-13 13:50:51,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:51,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816155153] [2024-11-13 13:50:51,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:51,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:52,524 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:52,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:52,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816155153] [2024-11-13 13:50:52,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816155153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:50:52,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895551175] [2024-11-13 13:50:52,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:52,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:50:52,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:50:52,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:50:52,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:50:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:52,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 13:50:52,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:53,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:50:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:53,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895551175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:50:53,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:50:53,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2024-11-13 13:50:53,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192502648] [2024-11-13 13:50:53,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:50:53,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 13:50:53,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:53,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 13:50:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:50:53,548 INFO L87 Difference]: Start difference. First operand 82 states and 103 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:53,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:53,944 INFO L93 Difference]: Finished difference Result 167 states and 210 transitions. [2024-11-13 13:50:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:50:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-13 13:50:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:53,946 INFO L225 Difference]: With dead ends: 167 [2024-11-13 13:50:53,946 INFO L226 Difference]: Without dead ends: 115 [2024-11-13 13:50:53,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:50:53,947 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 80 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:53,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 419 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:50:53,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-13 13:50:53,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 85. [2024-11-13 13:50:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:53,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 106 transitions. [2024-11-13 13:50:53,953 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 106 transitions. Word has length 42 [2024-11-13 13:50:53,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:53,953 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 106 transitions. [2024-11-13 13:50:53,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 106 transitions. [2024-11-13 13:50:53,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 13:50:53,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:53,955 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 13:50:53,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:50:54,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:50:54,159 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:54,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:54,159 INFO L85 PathProgramCache]: Analyzing trace with hash 614522583, now seen corresponding path program 1 times [2024-11-13 13:50:54,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:54,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099769045] [2024-11-13 13:50:54,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:54,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:54,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:54,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099769045] [2024-11-13 13:50:54,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099769045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:50:54,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337715352] [2024-11-13 13:50:54,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:54,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:50:54,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:50:54,810 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:50:54,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:50:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:55,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 13:50:55,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:55,236 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:55,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:50:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:55,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337715352] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:50:55,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:50:55,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2024-11-13 13:50:55,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017258031] [2024-11-13 13:50:55,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:50:55,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 13:50:55,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:55,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 13:50:55,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:50:55,728 INFO L87 Difference]: Start difference. First operand 85 states and 106 transitions. Second operand has 19 states, 19 states have (on average 5.368421052631579) internal successors, (102), 19 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:56,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:56,080 INFO L93 Difference]: Finished difference Result 149 states and 186 transitions. [2024-11-13 13:50:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:50:56,084 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.368421052631579) internal successors, (102), 19 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-13 13:50:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:56,085 INFO L225 Difference]: With dead ends: 149 [2024-11-13 13:50:56,085 INFO L226 Difference]: Without dead ends: 97 [2024-11-13 13:50:56,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:50:56,087 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 45 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:56,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 425 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:50:56,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-13 13:50:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2024-11-13 13:50:56,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.255813953488372) internal successors, (108), 86 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2024-11-13 13:50:56,104 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 44 [2024-11-13 13:50:56,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:56,104 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2024-11-13 13:50:56,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.368421052631579) internal successors, (102), 19 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:50:56,104 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2024-11-13 13:50:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:50:56,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:56,106 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:56,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 13:50:56,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 13:50:56,310 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:56,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:56,311 INFO L85 PathProgramCache]: Analyzing trace with hash 830448833, now seen corresponding path program 1 times [2024-11-13 13:50:56,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:56,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002540610] [2024-11-13 13:50:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:56,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:50:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:58,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:50:58,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002540610] [2024-11-13 13:50:58,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002540610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:50:58,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786430689] [2024-11-13 13:50:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:58,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:50:58,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:50:58,191 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:50:58,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:50:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:58,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-13 13:50:58,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:59,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:51:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 34 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:00,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786430689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:51:00,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:51:00,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 14] total 32 [2024-11-13 13:51:00,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330072771] [2024-11-13 13:51:00,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:51:00,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-13 13:51:00,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:51:00,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-13 13:51:00,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2024-11-13 13:51:00,821 INFO L87 Difference]: Start difference. First operand 87 states and 108 transitions. Second operand has 32 states, 32 states have (on average 4.90625) internal successors, (157), 32 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:02,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:02,940 INFO L93 Difference]: Finished difference Result 216 states and 269 transitions. [2024-11-13 13:51:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-13 13:51:02,940 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.90625) internal successors, (157), 32 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-13 13:51:02,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:02,941 INFO L225 Difference]: With dead ends: 216 [2024-11-13 13:51:02,941 INFO L226 Difference]: Without dead ends: 164 [2024-11-13 13:51:02,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=539, Invalid=3367, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 13:51:02,946 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 229 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:02,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1038 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 13:51:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-13 13:51:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 82. [2024-11-13 13:51:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 81 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2024-11-13 13:51:02,957 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 58 [2024-11-13 13:51:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:02,958 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2024-11-13 13:51:02,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.90625) internal successors, (157), 32 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:02,958 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2024-11-13 13:51:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 13:51:02,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:02,961 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:51:02,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:51:03,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 13:51:03,162 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:51:03,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1088303345, now seen corresponding path program 1 times [2024-11-13 13:51:03,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:51:03,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487493109] [2024-11-13 13:51:03,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:03,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:51:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:51:03,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:51:03,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487493109] [2024-11-13 13:51:03,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487493109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:51:03,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315606997] [2024-11-13 13:51:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:03,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:03,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:51:03,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:51:03,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:51:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:04,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-13 13:51:04,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:51:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:51:04,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:51:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:51:05,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315606997] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:51:05,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:51:05,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 11] total 21 [2024-11-13 13:51:05,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35088410] [2024-11-13 13:51:05,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:51:05,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:51:05,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:51:05,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:51:05,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:51:05,770 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand has 21 states, 21 states have (on average 6.809523809523809) internal successors, (143), 21 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:06,561 INFO L93 Difference]: Finished difference Result 181 states and 223 transitions. [2024-11-13 13:51:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 13:51:06,562 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.809523809523809) internal successors, (143), 21 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-13 13:51:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:06,563 INFO L225 Difference]: With dead ends: 181 [2024-11-13 13:51:06,563 INFO L226 Difference]: Without dead ends: 134 [2024-11-13 13:51:06,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2024-11-13 13:51:06,564 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 52 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:06,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 422 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:51:06,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-13 13:51:06,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 85. [2024-11-13 13:51:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.2142857142857142) internal successors, (102), 84 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:06,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 102 transitions. [2024-11-13 13:51:06,569 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 102 transitions. Word has length 59 [2024-11-13 13:51:06,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:06,569 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 102 transitions. [2024-11-13 13:51:06,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.809523809523809) internal successors, (143), 21 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:06,569 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 102 transitions. [2024-11-13 13:51:06,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:51:06,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:06,571 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 13:51:06,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:51:06,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 13:51:06,775 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:51:06,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:06,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1362327673, now seen corresponding path program 1 times [2024-11-13 13:51:06,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:51:06,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105796180] [2024-11-13 13:51:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:06,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:51:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:08,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:51:08,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105796180] [2024-11-13 13:51:08,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105796180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:51:08,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717280106] [2024-11-13 13:51:08,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:08,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:08,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:51:08,391 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:51:08,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:51:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:08,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-13 13:51:08,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:51:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:09,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:51:10,657 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:10,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717280106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:51:10,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:51:10,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 31 [2024-11-13 13:51:10,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551610662] [2024-11-13 13:51:10,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:51:10,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 13:51:10,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:51:10,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 13:51:10,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2024-11-13 13:51:10,661 INFO L87 Difference]: Start difference. First operand 85 states and 102 transitions. Second operand has 31 states, 31 states have (on average 4.838709677419355) internal successors, (150), 31 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:11,661 INFO L93 Difference]: Finished difference Result 138 states and 163 transitions. [2024-11-13 13:51:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 13:51:11,661 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.838709677419355) internal successors, (150), 31 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-13 13:51:11,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:11,662 INFO L225 Difference]: With dead ends: 138 [2024-11-13 13:51:11,662 INFO L226 Difference]: Without dead ends: 88 [2024-11-13 13:51:11,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1665, Unknown=0, NotChecked=0, Total=2070 [2024-11-13 13:51:11,664 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 245 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:11,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 608 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:51:11,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-13 13:51:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 71. [2024-11-13 13:51:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.2) internal successors, (84), 70 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2024-11-13 13:51:11,672 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 60 [2024-11-13 13:51:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:11,672 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2024-11-13 13:51:11,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.838709677419355) internal successors, (150), 31 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2024-11-13 13:51:11,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:51:11,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:11,673 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:51:11,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 13:51:11,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 13:51:11,873 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:51:11,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:11,874 INFO L85 PathProgramCache]: Analyzing trace with hash -302988283, now seen corresponding path program 1 times [2024-11-13 13:51:11,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:51:11,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995114542] [2024-11-13 13:51:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:11,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:51:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:51:12,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:51:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:51:12,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:51:12,190 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:51:12,193 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:51:12,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:51:12,198 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:51:12,262 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:51:12,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:51:12 BoogieIcfgContainer [2024-11-13 13:51:12,265 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:51:12,266 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:51:12,266 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:51:12,267 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:51:12,267 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:50:45" (3/4) ... [2024-11-13 13:51:12,270 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:51:12,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:51:12,272 INFO L158 Benchmark]: Toolchain (without parser) took 28084.07ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 119.0MB in the beginning and 165.3MB in the end (delta: -46.3MB). Peak memory consumption was 229.1MB. Max. memory is 16.1GB. [2024-11-13 13:51:12,272 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:12,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.94ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 106.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:51:12,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.37ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 101.7MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:51:12,273 INFO L158 Benchmark]: Boogie Preprocessor took 86.67ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 99.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:12,273 INFO L158 Benchmark]: RCFGBuilder took 661.65ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 73.3MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 13:51:12,273 INFO L158 Benchmark]: TraceAbstraction took 26908.90ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 72.8MB in the beginning and 165.3MB in the end (delta: -92.6MB). Peak memory consumption was 187.1MB. Max. memory is 16.1GB. [2024-11-13 13:51:12,274 INFO L158 Benchmark]: Witness Printer took 4.86ms. Allocated memory is still 419.4MB. Free memory was 165.3MB in the beginning and 165.3MB in the end (delta: 69.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:12,276 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.94ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 106.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.37ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 101.7MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.67ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 99.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 661.65ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 73.3MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 26908.90ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 72.8MB in the beginning and 165.3MB in the end (delta: -92.6MB). Peak memory consumption was 187.1MB. Max. memory is 16.1GB. * Witness Printer took 4.86ms. Allocated memory is still 419.4MB. Free memory was 165.3MB in the beginning and 165.3MB in the end (delta: 69.0kB). 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: 21]: 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 bitwiseOr at line 97. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L32] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 32); [L33] const SORT_12 msb_SORT_12 = (SORT_12)1 << (32 - 1); [L35] const SORT_4 var_8 = 0; [L36] const SORT_12 var_14 = 1; [L37] const SORT_1 var_25 = 1; [L38] const SORT_1 var_42 = 0; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L42] SORT_4 input_5; [L43] SORT_1 input_6; [L44] SORT_1 input_7; [L45] SORT_4 input_29; [L46] SORT_4 input_31; [L47] SORT_4 input_33; [L48] SORT_4 input_35; [L49] SORT_4 input_37; [L50] SORT_4 input_39; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=255, var_14=1, var_25=1, var_42=0, var_8=0] [L52] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, var_14=1, var_25=1, var_42=0, var_8=0] [L53] SORT_4 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L54] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_14=1, var_25=1, var_42=0, var_8=0] [L54] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_4 init_10_arg_1 = var_8; [L57] state_9 = init_10_arg_1 [L58] SORT_4 init_18_arg_1 = var_8; [L59] state_17 = init_18_arg_1 [L60] SORT_1 init_44_arg_1 = var_42; [L61] state_43 = init_44_arg_1 VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_42=0] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_5 = __VERIFIER_nondet_uchar() [L67] input_6 = __VERIFIER_nondet_uchar() [L68] input_7 = __VERIFIER_nondet_uchar() [L69] input_29 = __VERIFIER_nondet_uchar() [L70] input_31 = __VERIFIER_nondet_uchar() [L71] input_33 = __VERIFIER_nondet_uchar() [L72] input_35 = __VERIFIER_nondet_uchar() [L73] input_37 = __VERIFIER_nondet_uchar() [L74] input_39 = __VERIFIER_nondet_uchar() [L77] SORT_4 var_11_arg_0 = state_9; [L78] SORT_1 var_11 = var_11_arg_0 >> 7; [L79] SORT_1 var_13_arg_0 = var_11; VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_13_arg_0=0, var_14=1, var_25=1, var_42=0] [L80] EXPR var_13_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_42=0] [L80] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L81] SORT_12 var_13 = var_13_arg_0; [L82] SORT_12 var_15_arg_0 = var_13; [L83] SORT_12 var_15_arg_1 = var_14; [L84] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L85] SORT_1 var_16_arg_0 = var_15; [L86] SORT_1 var_16 = ~var_16_arg_0; [L87] SORT_4 var_19_arg_0 = state_17; [L88] SORT_1 var_19 = var_19_arg_0 >> 7; [L89] SORT_1 var_20_arg_0 = var_19; VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_16=-1, var_20_arg_0=0, var_25=1, var_42=0] [L90] EXPR var_20_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_16=-1, var_25=1, var_42=0] [L90] var_20_arg_0 = var_20_arg_0 & mask_SORT_1 [L91] SORT_12 var_20 = var_20_arg_0; [L92] SORT_12 var_21_arg_0 = var_20; [L93] SORT_12 var_21_arg_1 = var_14; [L94] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L95] SORT_1 var_22_arg_0 = var_16; [L96] SORT_1 var_22_arg_1 = var_21; VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_22_arg_0=-1, var_22_arg_1=0, var_25=1, var_42=0] [L97] EXPR var_22_arg_0 | var_22_arg_1 VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_42=0] [L97] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L98] SORT_1 var_26_arg_0 = var_22; [L99] SORT_1 var_26 = ~var_26_arg_0; [L100] SORT_1 var_27_arg_0 = var_25; [L101] SORT_1 var_27_arg_1 = var_26; VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_27_arg_0=1, var_27_arg_1=-256, var_42=0] [L102] EXPR var_27_arg_0 & var_27_arg_1 VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_42=0] [L102] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L103] EXPR var_27 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_42=0] [L103] var_27 = var_27 & mask_SORT_1 [L104] SORT_1 bad_28_arg_0 = var_27; [L105] CALL __VERIFIER_assert(!(bad_28_arg_0)) [L21] COND FALSE !(!(cond)) [L105] RET __VERIFIER_assert(!(bad_28_arg_0)) [L107] SORT_1 var_45_arg_0 = state_43; [L108] SORT_4 var_45_arg_1 = input_5; [L109] SORT_4 var_45_arg_2 = state_9; [L110] SORT_4 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L111] SORT_4 next_46_arg_1 = var_45; [L112] SORT_1 var_47_arg_0 = state_43; [L113] SORT_4 var_47_arg_1 = input_5; [L114] SORT_4 var_47_arg_2 = state_17; [L115] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L116] SORT_4 next_48_arg_1 = var_47; [L117] SORT_1 var_49_arg_0 = state_43; [L118] SORT_1 var_49_arg_1 = var_42; [L119] SORT_1 var_49_arg_2 = var_25; [L120] SORT_1 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; VAL [mask_SORT_1=1, next_46_arg_1=0, next_48_arg_1=0, var_14=1, var_25=1, var_42=0, var_49=1] [L121] EXPR var_49 & mask_SORT_1 VAL [mask_SORT_1=1, next_46_arg_1=0, next_48_arg_1=0, var_14=1, var_25=1, var_42=0] [L121] var_49 = var_49 & mask_SORT_1 [L122] SORT_1 next_50_arg_1 = var_49; [L124] state_9 = next_46_arg_1 [L125] state_17 = next_48_arg_1 [L126] state_43 = next_50_arg_1 [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_5 = __VERIFIER_nondet_uchar() [L67] input_6 = __VERIFIER_nondet_uchar() [L68] input_7 = __VERIFIER_nondet_uchar() [L69] input_29 = __VERIFIER_nondet_uchar() [L70] input_31 = __VERIFIER_nondet_uchar() [L71] input_33 = __VERIFIER_nondet_uchar() [L72] input_35 = __VERIFIER_nondet_uchar() [L73] input_37 = __VERIFIER_nondet_uchar() [L74] input_39 = __VERIFIER_nondet_uchar() [L77] SORT_4 var_11_arg_0 = state_9; [L78] SORT_1 var_11 = var_11_arg_0 >> 7; [L79] SORT_1 var_13_arg_0 = var_11; VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_13_arg_0=0, var_14=1, var_25=1, var_42=0] [L80] EXPR var_13_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_25=1, var_42=0] [L80] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L81] SORT_12 var_13 = var_13_arg_0; [L82] SORT_12 var_15_arg_0 = var_13; [L83] SORT_12 var_15_arg_1 = var_14; [L84] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L85] SORT_1 var_16_arg_0 = var_15; [L86] SORT_1 var_16 = ~var_16_arg_0; [L87] SORT_4 var_19_arg_0 = state_17; [L88] SORT_1 var_19 = var_19_arg_0 >> 7; [L89] SORT_1 var_20_arg_0 = var_19; VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_16=-1, var_20_arg_0=0, var_25=1, var_42=0] [L90] EXPR var_20_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_16=-1, var_25=1, var_42=0] [L90] var_20_arg_0 = var_20_arg_0 & mask_SORT_1 [L91] SORT_12 var_20 = var_20_arg_0; [L92] SORT_12 var_21_arg_0 = var_20; [L93] SORT_12 var_21_arg_1 = var_14; [L94] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L95] SORT_1 var_22_arg_0 = var_16; [L96] SORT_1 var_22_arg_1 = var_21; VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_22_arg_0=-1, var_22_arg_1=0, var_25=1, var_42=0] [L97] EXPR var_22_arg_0 | var_22_arg_1 VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_25=1, var_42=0] [L97] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L98] SORT_1 var_26_arg_0 = var_22; [L99] SORT_1 var_26 = ~var_26_arg_0; [L100] SORT_1 var_27_arg_0 = var_25; [L101] SORT_1 var_27_arg_1 = var_26; VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_25=1, var_27_arg_0=1, var_27_arg_1=-256, var_42=0] [L102] EXPR var_27_arg_0 & var_27_arg_1 VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_25=1, var_42=0] [L102] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L103] EXPR var_27 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=0, state_43=1, state_9=0, var_14=1, var_25=1, var_42=0] [L103] var_27 = var_27 & mask_SORT_1 [L104] SORT_1 bad_28_arg_0 = var_27; [L105] CALL __VERIFIER_assert(!(bad_28_arg_0)) [L21] COND FALSE !(!(cond)) [L105] RET __VERIFIER_assert(!(bad_28_arg_0)) [L107] SORT_1 var_45_arg_0 = state_43; [L108] SORT_4 var_45_arg_1 = input_5; [L109] SORT_4 var_45_arg_2 = state_9; [L110] SORT_4 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L111] SORT_4 next_46_arg_1 = var_45; [L112] SORT_1 var_47_arg_0 = state_43; [L113] SORT_4 var_47_arg_1 = input_5; [L114] SORT_4 var_47_arg_2 = state_17; [L115] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L116] SORT_4 next_48_arg_1 = var_47; [L117] SORT_1 var_49_arg_0 = state_43; [L118] SORT_1 var_49_arg_1 = var_42; [L119] SORT_1 var_49_arg_2 = var_25; [L120] SORT_1 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; VAL [mask_SORT_1=1, next_46_arg_1=255, next_48_arg_1=255, var_14=1, var_25=1, var_42=0, var_49=0] [L121] EXPR var_49 & mask_SORT_1 VAL [mask_SORT_1=1, next_46_arg_1=255, next_48_arg_1=255, var_14=1, var_25=1, var_42=0] [L121] var_49 = var_49 & mask_SORT_1 [L122] SORT_1 next_50_arg_1 = var_49; [L124] state_9 = next_46_arg_1 [L125] state_17 = next_48_arg_1 [L126] state_43 = next_50_arg_1 [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_5 = __VERIFIER_nondet_uchar() [L67] input_6 = __VERIFIER_nondet_uchar() [L68] input_7 = __VERIFIER_nondet_uchar() [L69] input_29 = __VERIFIER_nondet_uchar() [L70] input_31 = __VERIFIER_nondet_uchar() [L71] input_33 = __VERIFIER_nondet_uchar() [L72] input_35 = __VERIFIER_nondet_uchar() [L73] input_37 = __VERIFIER_nondet_uchar() [L74] input_39 = __VERIFIER_nondet_uchar() [L77] SORT_4 var_11_arg_0 = state_9; [L78] SORT_1 var_11 = var_11_arg_0 >> 7; [L79] SORT_1 var_13_arg_0 = var_11; VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_13_arg_0=1, var_14=1, var_25=1, var_42=0] [L80] EXPR var_13_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_25=1, var_42=0] [L80] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L81] SORT_12 var_13 = var_13_arg_0; [L82] SORT_12 var_15_arg_0 = var_13; [L83] SORT_12 var_15_arg_1 = var_14; [L84] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L85] SORT_1 var_16_arg_0 = var_15; [L86] SORT_1 var_16 = ~var_16_arg_0; [L87] SORT_4 var_19_arg_0 = state_17; [L88] SORT_1 var_19 = var_19_arg_0 >> 7; [L89] SORT_1 var_20_arg_0 = var_19; VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_16=-2, var_20_arg_0=1, var_25=1, var_42=0] [L90] EXPR var_20_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_16=-2, var_25=1, var_42=0] [L90] var_20_arg_0 = var_20_arg_0 & mask_SORT_1 [L91] SORT_12 var_20 = var_20_arg_0; [L92] SORT_12 var_21_arg_0 = var_20; [L93] SORT_12 var_21_arg_1 = var_14; [L94] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L95] SORT_1 var_22_arg_0 = var_16; [L96] SORT_1 var_22_arg_1 = var_21; VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_22_arg_0=-2, var_22_arg_1=1, var_25=1, var_42=0] [L97] EXPR var_22_arg_0 | var_22_arg_1 VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_25=1, var_42=0] [L97] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L98] SORT_1 var_26_arg_0 = var_22; [L99] SORT_1 var_26 = ~var_26_arg_0; [L100] SORT_1 var_27_arg_0 = var_25; [L101] SORT_1 var_27_arg_1 = var_26; VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_25=1, var_27_arg_0=1, var_27_arg_1=-255, var_42=0] [L102] EXPR var_27_arg_0 & var_27_arg_1 VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_25=1, var_42=0] [L102] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L103] EXPR var_27 & mask_SORT_1 VAL [mask_SORT_1=1, state_17=255, state_43=0, state_9=255, var_14=1, var_25=1, var_42=0] [L103] var_27 = var_27 & mask_SORT_1 [L104] SORT_1 bad_28_arg_0 = var_27; [L105] CALL __VERIFIER_assert(!(bad_28_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.8s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 981 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 981 mSDsluCounter, 4579 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3906 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3416 IncrementalHoareTripleChecker+Invalid, 3455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 673 mSDtfsCounter, 3416 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 759 GetRequests, 529 SyntacticMatches, 3 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1568 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=11, InterpolantAutomatonStates: 138, 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, 14 MinimizatonAttempts, 227 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1039 ConstructedInterpolants, 0 QuantifiedInterpolants, 8798 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2098 ConjunctsInSsa, 269 ConjunctsInUnsatCore, 25 InterpolantComputations, 9 PerfectInterpolantSequences, 344/482 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 13:51:12,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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 64bit --witnessprinter.graph.data.programhash 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:51:15,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:51:15,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-13 13:51:15,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:51:15,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:51:15,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:51:15,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:51:15,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:51:15,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:51:15,213 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:51:15,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:51:15,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:51:15,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:51:15,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:51:15,215 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:51:15,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:51:15,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:51:15,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:51:15,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:51:15,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:51:15,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:51:15,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:51:15,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:51:15,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:51:15,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:51:15,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:51:15,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:51:15,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:51:15,219 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:51:15,219 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:51:15,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:51:15,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:51:15,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:51:15,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:51:15,220 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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e [2024-11-13 13:51:15,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:51:15,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:51:15,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:51:15,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:51:15,615 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:51:15,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c Unable to find full path for "g++" [2024-11-13 13:51:17,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:51:17,830 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:51:17,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2024-11-13 13:51:17,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data/fc6fe5b9b/9319ca4b673d4e29b046bbd83159de5c/FLAG505a2dab5 [2024-11-13 13:51:18,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/data/fc6fe5b9b/9319ca4b673d4e29b046bbd83159de5c [2024-11-13 13:51:18,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:51:18,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:51:18,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:51:18,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:51:18,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:51:18,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349c0b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18, skipping insertion in model container [2024-11-13 13:51:18,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:51:18,371 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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1245,1258] [2024-11-13 13:51:18,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:51:18,442 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:51:18,455 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_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1245,1258] [2024-11-13 13:51:18,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:51:18,496 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:51:18,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18 WrapperNode [2024-11-13 13:51:18,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:51:18,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:51:18,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:51:18,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:51:18,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,536 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 143 [2024-11-13 13:51:18,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:51:18,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:51:18,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:51:18,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:51:18,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,550 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,561 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 13:51:18,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:51:18,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:51:18,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:51:18,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:51:18,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (1/1) ... [2024-11-13 13:51:18,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:51:18,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:51:18,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:51:18,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:51:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:51:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:51:18,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 13:51:18,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:51:18,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:51:18,748 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:51:18,750 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:51:18,966 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-13 13:51:18,966 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:51:18,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:51:18,977 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:51:18,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:51:18 BoogieIcfgContainer [2024-11-13 13:51:18,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:51:18,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:51:18,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:51:18,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:51:18,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:51:18" (1/3) ... [2024-11-13 13:51:18,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55abb5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:51:18, skipping insertion in model container [2024-11-13 13:51:18,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:51:18" (2/3) ... [2024-11-13 13:51:18,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55abb5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:51:18, skipping insertion in model container [2024-11-13 13:51:18,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:51:18" (3/3) ... [2024-11-13 13:51:18,989 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b04.c [2024-11-13 13:51:19,005 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:51:19,006 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b04.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:51:19,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:51:19,081 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;@11c58f13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:51:19,082 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:51:19,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:19,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 13:51:19,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:19,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 13:51:19,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:51:19,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:19,098 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-13 13:51:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:51:19,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100603952] [2024-11-13 13:51:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:19,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:19,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:51:19,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:51:19,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:51:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:19,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 13:51:19,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:51:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:19,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:51:19,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:51:19,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100603952] [2024-11-13 13:51:19,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100603952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:51:19,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:51:19,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:51:19,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27514913] [2024-11-13 13:51:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:51:19,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:51:19,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:51:19,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:51:19,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:51:19,722 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:19,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:19,774 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-13 13:51:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:51:19,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 13:51:19,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:19,783 INFO L225 Difference]: With dead ends: 18 [2024-11-13 13:51:19,783 INFO L226 Difference]: Without dead ends: 10 [2024-11-13 13:51:19,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:51:19,789 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:19,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:51:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-13 13:51:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-13 13:51:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 13:51:19,818 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-13 13:51:19,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:19,818 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 13:51:19,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 13:51:19,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 13:51:19,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:19,819 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 13:51:19,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:51:20,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:20,024 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:51:20,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:20,025 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-13 13:51:20,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:51:20,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549789842] [2024-11-13 13:51:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:20,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:20,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:51:20,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:51:20,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:51:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:20,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 13:51:20,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:51:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:20,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:51:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:21,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:51:21,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549789842] [2024-11-13 13:51:21,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549789842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:51:21,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:51:21,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 13:51:21,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670367473] [2024-11-13 13:51:21,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:51:21,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:51:21,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:51:21,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:51:21,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:51:21,063 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:21,179 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-13 13:51:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:51:21,180 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 13:51:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:21,181 INFO L225 Difference]: With dead ends: 15 [2024-11-13 13:51:21,181 INFO L226 Difference]: Without dead ends: 13 [2024-11-13 13:51:21,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:51:21,182 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:21,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:51:21,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-13 13:51:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-13 13:51:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 13:51:21,190 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-13 13:51:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:21,191 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 13:51:21,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 13:51:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 13:51:21,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:21,192 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-13 13:51:21,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:51:21,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:21,397 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:51:21,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:21,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-13 13:51:21,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:51:21,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210583248] [2024-11-13 13:51:21,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:51:21,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:21,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:51:21,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:51:21,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:51:21,552 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:51:21,552 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:51:21,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-13 13:51:21,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:51:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:21,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:51:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:51:22,670 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:51:22,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210583248] [2024-11-13 13:51:22,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210583248] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:51:22,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:51:22,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-13 13:51:22,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540397468] [2024-11-13 13:51:22,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:51:22,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:51:22,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:51:22,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:51:22,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:51:22,672 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:22,906 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2024-11-13 13:51:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:51:22,907 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 13:51:22,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:22,908 INFO L225 Difference]: With dead ends: 13 [2024-11-13 13:51:22,908 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 13:51:22,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:51:22,909 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:22,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 12 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:51:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 13:51:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 13:51:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 13:51:22,912 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-13 13:51:22,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:22,912 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:51:22,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:51:22,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 13:51:22,915 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:51:22,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:51:23,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:23,119 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-13 13:51:23,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 13:51:23,187 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:51:23,202 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 13:51:23,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:51:23 BoogieIcfgContainer [2024-11-13 13:51:23,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:51:23,209 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:51:23,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:51:23,212 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:51:23,213 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:51:18" (3/4) ... [2024-11-13 13:51:23,216 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:51:23,225 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-13 13:51:23,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-13 13:51:23,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 13:51:23,228 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:51:23,228 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:51:23,266 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 13:51:23,270 INFO L158 Benchmark]: Toolchain (without parser) took 5096.94ms. Allocated memory was 83.9MB in the beginning and 134.2MB in the end (delta: 50.3MB). Free memory was 61.6MB in the beginning and 73.2MB in the end (delta: -11.6MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-13 13:51:23,271 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:23,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.24ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 48.3MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:51:23,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.72ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 46.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:51:23,272 INFO L158 Benchmark]: Boogie Preprocessor took 38.27ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 44.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:23,272 INFO L158 Benchmark]: RCFGBuilder took 401.75ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 59.9MB in the end (delta: -15.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-11-13 13:51:23,273 INFO L158 Benchmark]: TraceAbstraction took 4226.70ms. Allocated memory was 83.9MB in the beginning and 134.2MB in the end (delta: 50.3MB). Free memory was 59.1MB in the beginning and 76.1MB in the end (delta: -17.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2024-11-13 13:51:23,273 INFO L158 Benchmark]: Witness Printer took 60.53ms. Allocated memory is still 134.2MB. Free memory was 76.1MB in the beginning and 73.2MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:51:23,275 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.24ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 48.3MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.72ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 46.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.27ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 44.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 401.75ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 59.9MB in the end (delta: -15.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4226.70ms. Allocated memory was 83.9MB in the beginning and 134.2MB in the end (delta: 50.3MB). Free memory was 59.1MB in the beginning and 76.1MB in the end (delta: -17.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 60.53ms. Allocated memory is still 134.2MB. Free memory was 76.1MB in the beginning and 73.2MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 12 QuantifiedInterpolants, 865 SizeOfPredicates, 17 NumberOfNonLiveVariables, 288 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((1 == var_14) && (1 == mask_SORT_1)) * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-13 13:51:23,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd85b05c-e46a-4c51-87de-8d3b8ef2182f/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null