./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem08_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/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_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label36.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a20c49f3582b32c3cec1a5dfc1815c6c092999096bb4b2da6902587a162d75e0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:33:10,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:33:10,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:33:10,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:33:10,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:33:10,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:33:10,874 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:33:10,874 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:33:10,874 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:33:10,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:33:10,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:33:10,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:33:10,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:33:10,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:33:10,875 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:33:10,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:33:10,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:33:10,877 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:33:10,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:33:10,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:33:10,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:33:10,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:33:10,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:33:10,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:33:10,879 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:33:10,879 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:33:10,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:33:10,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:33:10,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:33:10,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:33:10,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:33:10,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:33:10,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:33:10,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:33:10,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:33:10,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:33:10,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:33:10,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:33:10,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:33:10,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:33:10,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:33:10,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:33:10,882 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_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a20c49f3582b32c3cec1a5dfc1815c6c092999096bb4b2da6902587a162d75e0 [2024-11-13 14:33:11,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:33:11,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:33:11,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:33:11,218 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:33:11,218 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:33:11,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem08_label36.c Unable to find full path for "g++" [2024-11-13 14:33:13,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:33:16,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:33:16,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/sv-benchmarks/c/eca-rers2012/Problem08_label36.c [2024-11-13 14:33:17,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/data/613064b92/2b6088f49a814e83bc9622348f4ee54f/FLAG5beb3f88f [2024-11-13 14:33:17,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/data/613064b92/2b6088f49a814e83bc9622348f4ee54f [2024-11-13 14:33:17,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:33:17,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:33:17,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:33:17,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:33:17,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:33:17,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:17" (1/1) ... [2024-11-13 14:33:17,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642e34b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:17, skipping insertion in model container [2024-11-13 14:33:17,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:17" (1/1) ... [2024-11-13 14:33:18,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:33:46,845 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_86b822de-065d-4675-baed-110e9d37a8c0/sv-benchmarks/c/eca-rers2012/Problem08_label36.c[5717764,5717777] [2024-11-13 14:33:47,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:33:47,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:34:02,262 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_86b822de-065d-4675-baed-110e9d37a8c0/sv-benchmarks/c/eca-rers2012/Problem08_label36.c[5717764,5717777] [2024-11-13 14:34:02,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:34:07,184 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:34:07,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07 WrapperNode [2024-11-13 14:34:07,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:34:07,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:34:07,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:34:07,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:34:07,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:08,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:13,369 INFO L138 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184369 [2024-11-13 14:34:13,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:34:13,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:34:13,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:34:13,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:34:13,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:13,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:14,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:15,692 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:34:15,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:15,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:17,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:18,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:19,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:19,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:20,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:34:20,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:34:20,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:34:20,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:34:20,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (1/1) ... [2024-11-13 14:34:20,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:34:20,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:34:20,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:34:20,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86b822de-065d-4675-baed-110e9d37a8c0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:34:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:34:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:34:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:34:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:34:20,592 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:34:20,595 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:36:07,656 INFO L? ?]: Removed 18108 outVars from TransFormulas that were not future-live. [2024-11-13 14:36:07,656 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:36:07,986 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:36:07,987 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:36:07,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:36:07 BoogieIcfgContainer [2024-11-13 14:36:07,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:36:07,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:36:07,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:36:07,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:36:07,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:33:17" (1/3) ... [2024-11-13 14:36:07,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224e2a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:36:07, skipping insertion in model container [2024-11-13 14:36:08,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:07" (2/3) ... [2024-11-13 14:36:08,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224e2a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:36:08, skipping insertion in model container [2024-11-13 14:36:08,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:36:07" (3/3) ... [2024-11-13 14:36:08,004 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem08_label36.c [2024-11-13 14:36:08,023 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:36:08,027 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem08_label36.c that has 1 procedures, 23215 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:36:08,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:36:08,675 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;@4acee153, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:36:08,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:36:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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 14:36:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17923 [2024-11-13 14:36:11,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:36:11,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-13 14:36:11,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:36:11,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:36:11,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1636792768, now seen corresponding path program 1 times [2024-11-13 14:36:11,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:36:11,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47679264] [2024-11-13 14:36:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:11,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms