./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:24:59,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:24:59,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 11:24:59,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:24:59,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:24:59,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:24:59,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:24:59,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:24:59,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:24:59,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:24:59,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:24:59,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:24:59,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:24:59,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:24:59,838 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:24:59,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:24:59,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:24:59,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 11:24:59,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:24:59,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 11:24:59,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:24:59,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:24:59,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:24:59,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:24:59,848 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:24:59,848 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:24:59,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:24:59,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 11:24:59,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:24:59,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:24:59,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:24:59,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:24:59,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:24:59,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:24:59,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:24:59,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:24:59,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:24:59,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:24:59,856 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:24:59,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:24:59,856 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:24:59,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:24:59,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:24:59,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:24:59,862 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 [2024-11-09 11:25:00,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:25:00,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:25:00,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:25:00,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:25:00,283 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:25:00,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2024-11-09 11:25:01,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:25:01,888 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:25:01,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2024-11-09 11:25:01,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707c94d27/ec0fa0d2c39d4eb19a23fbac80396191/FLAG2bab52aaf [2024-11-09 11:25:01,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707c94d27/ec0fa0d2c39d4eb19a23fbac80396191 [2024-11-09 11:25:01,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:25:01,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:25:01,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:25:01,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:25:01,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:25:01,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:25:01" (1/1) ... [2024-11-09 11:25:01,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62866ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:01, skipping insertion in model container [2024-11-09 11:25:01,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:25:01" (1/1) ... [2024-11-09 11:25:01,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:25:02,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:25:02,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:25:02,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:25:02,399 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:25:02,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02 WrapperNode [2024-11-09 11:25:02,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:25:02,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:25:02,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:25:02,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:25:02,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,445 INFO L138 Inliner]: procedures = 126, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 126 [2024-11-09 11:25:02,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:25:02,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:25:02,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:25:02,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:25:02,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,485 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 9, 9]. 45 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 6 writes are split as follows [0, 1, 5]. [2024-11-09 11:25:02,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:25:02,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:25:02,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:25:02,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:25:02,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (1/1) ... [2024-11-09 11:25:02,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:25:02,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:25:02,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 11:25:02,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 11:25:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 11:25:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 11:25:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 11:25:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-09 11:25:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-09 11:25:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 11:25:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 11:25:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 11:25:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 11:25:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 11:25:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 11:25:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 11:25:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 11:25:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 11:25:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:25:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:25:02,684 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:25:02,686 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:25:02,810 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-09 11:25:02,811 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:25:02,819 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:25:02,819 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 11:25:02,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:25:02 BoogieIcfgContainer [2024-11-09 11:25:02,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:25:02,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:25:02,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:25:02,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:25:02,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:25:01" (1/3) ... [2024-11-09 11:25:02,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446b75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:25:02, skipping insertion in model container [2024-11-09 11:25:02,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:25:02" (2/3) ... [2024-11-09 11:25:02,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446b75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:25:02, skipping insertion in model container [2024-11-09 11:25:02,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:25:02" (3/3) ... [2024-11-09 11:25:02,825 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_remove_all_reverse.i [2024-11-09 11:25:02,835 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:25:02,836 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 11:25:02,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:25:02,874 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;@14f06f4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:25:02,874 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 11:25:02,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 37 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:25:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 11:25:02,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:25:02,885 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:25:02,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:25:02,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:25:02,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1660803553, now seen corresponding path program 1 times [2024-11-09 11:25:02,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:25:02,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012479867] [2024-11-09 11:25:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:02,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:25:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 11:25:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:25:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 11:25:03,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:25:03,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012479867] [2024-11-09 11:25:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012479867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:25:03,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:25:03,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:25:03,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289978966] [2024-11-09 11:25:03,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:25:03,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:25:03,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:25:03,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:25:03,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:25:03,258 INFO L87 Difference]: Start difference. First operand has 41 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 37 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:03,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:25:03,340 INFO L93 Difference]: Finished difference Result 71 states and 94 transitions. [2024-11-09 11:25:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:25:03,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-09 11:25:03,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:25:03,360 INFO L225 Difference]: With dead ends: 71 [2024-11-09 11:25:03,362 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 11:25:03,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:25:03,388 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 1 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:25:03,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 142 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:25:03,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 11:25:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 11:25:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 11:25:03,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2024-11-09 11:25:03,419 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 18 [2024-11-09 11:25:03,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:25:03,420 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2024-11-09 11:25:03,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:03,420 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2024-11-09 11:25:03,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 11:25:03,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:25:03,422 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:25:03,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:25:03,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:25:03,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:25:03,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1178925207, now seen corresponding path program 1 times [2024-11-09 11:25:03,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:25:03,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597388836] [2024-11-09 11:25:03,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:25:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 11:25:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:25:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 11:25:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 11:25:03,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:25:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597388836] [2024-11-09 11:25:03,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597388836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:25:03,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829401152] [2024-11-09 11:25:03,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:03,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:25:03,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:25:03,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:25:03,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:25:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:03,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 11:25:03,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:25:03,960 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 11:25:03,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:25:03,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829401152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:25:03,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:25:03,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-09 11:25:03,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982785235] [2024-11-09 11:25:03,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:25:03,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:25:03,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:25:03,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:25:03,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 11:25:03,964 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 11:25:03,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:25:03,986 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2024-11-09 11:25:03,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:25:03,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-09 11:25:03,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:25:03,987 INFO L225 Difference]: With dead ends: 59 [2024-11-09 11:25:03,988 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 11:25:03,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 11:25:03,990 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:25:03,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:25:03,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 11:25:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 11:25:03,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:25:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-09 11:25:03,994 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 28 [2024-11-09 11:25:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:25:03,994 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-09 11:25:03,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 11:25:03,994 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-09 11:25:03,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 11:25:03,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:25:03,995 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 11:25:04,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 11:25:04,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:25:04,196 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:25:04,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:25:04,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1540318522, now seen corresponding path program 1 times [2024-11-09 11:25:04,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:25:04,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653567706] [2024-11-09 11:25:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:04,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:25:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:04,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 11:25:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:04,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:25:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 11:25:04,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:25:04,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653567706] [2024-11-09 11:25:04,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653567706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:25:04,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:25:04,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:25:04,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825445879] [2024-11-09 11:25:04,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:25:04,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:25:04,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:25:04,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:25:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:25:04,277 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:25:04,312 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-11-09 11:25:04,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:25:04,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-11-09 11:25:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:25:04,314 INFO L225 Difference]: With dead ends: 45 [2024-11-09 11:25:04,314 INFO L226 Difference]: Without dead ends: 43 [2024-11-09 11:25:04,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:25:04,315 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:25:04,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 102 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:25:04,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-09 11:25:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-09 11:25:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 39 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:25:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2024-11-09 11:25:04,320 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 30 [2024-11-09 11:25:04,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:25:04,320 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-09 11:25:04,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2024-11-09 11:25:04,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 11:25:04,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:25:04,321 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-09 11:25:04,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 11:25:04,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:25:04,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:25:04,322 INFO L85 PathProgramCache]: Analyzing trace with hash 641711245, now seen corresponding path program 1 times [2024-11-09 11:25:04,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:25:04,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717361648] [2024-11-09 11:25:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:04,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:25:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:04,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 11:25:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:04,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:25:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 11:25:04,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:25:04,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717361648] [2024-11-09 11:25:04,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717361648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:25:04,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028512565] [2024-11-09 11:25:04,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:04,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:25:04,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:25:04,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:25:04,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:25:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:04,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:25:04,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:25:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 11:25:04,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:25:04,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028512565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:25:04,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:25:04,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-09 11:25:04,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895570530] [2024-11-09 11:25:04,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:25:04,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:25:04,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:25:04,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:25:04,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 11:25:04,669 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:25:04,710 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-11-09 11:25:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 11:25:04,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2024-11-09 11:25:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:25:04,711 INFO L225 Difference]: With dead ends: 43 [2024-11-09 11:25:04,711 INFO L226 Difference]: Without dead ends: 42 [2024-11-09 11:25:04,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 11:25:04,716 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 13 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:25:04,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 161 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:25:04,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-09 11:25:04,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-09 11:25:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:25:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2024-11-09 11:25:04,724 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 39 [2024-11-09 11:25:04,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:25:04,725 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2024-11-09 11:25:04,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:04,725 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2024-11-09 11:25:04,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 11:25:04,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:25:04,727 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2024-11-09 11:25:04,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 11:25:04,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 11:25:04,928 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:25:04,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:25:04,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1581787781, now seen corresponding path program 1 times [2024-11-09 11:25:04,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:25:04,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109077226] [2024-11-09 11:25:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:25:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:05,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 11:25:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:05,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:25:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 11:25:05,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:25:05,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109077226] [2024-11-09 11:25:05,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109077226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:25:05,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676477769] [2024-11-09 11:25:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:05,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:25:05,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:25:05,154 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:25:05,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 11:25:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:05,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:25:05,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:25:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 11:25:05,322 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:25:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 11:25:05,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676477769] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:25:05,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:25:05,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-09 11:25:05,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873815457] [2024-11-09 11:25:05,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:25:05,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 11:25:05,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:25:05,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 11:25:05,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-09 11:25:05,384 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:05,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:25:05,467 INFO L93 Difference]: Finished difference Result 79 states and 97 transitions. [2024-11-09 11:25:05,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 11:25:05,468 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2024-11-09 11:25:05,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:25:05,468 INFO L225 Difference]: With dead ends: 79 [2024-11-09 11:25:05,472 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 11:25:05,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-09 11:25:05,473 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 30 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:25:05,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 180 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:25:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 11:25:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-09 11:25:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 74 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:25:05,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2024-11-09 11:25:05,483 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 40 [2024-11-09 11:25:05,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:25:05,487 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2024-11-09 11:25:05,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:25:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2024-11-09 11:25:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 11:25:05,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:25:05,489 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:25:05,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 11:25:05,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:25:05,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:25:05,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:25:05,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1173297070, now seen corresponding path program 2 times [2024-11-09 11:25:05,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:25:05,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702038760] [2024-11-09 11:25:05,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:25:05,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:25:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:05,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 11:25:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:05,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:25:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:25:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-09 11:25:05,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:25:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702038760] [2024-11-09 11:25:05,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702038760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:25:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70526852] [2024-11-09 11:25:05,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:25:05,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:25:05,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:25:05,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:25:05,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 11:25:06,062 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 11:25:06,063 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:25:06,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 11:25:06,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:25:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 11:25:06,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:25:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 11:25:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70526852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:25:06,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:25:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-09 11:25:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150786298] [2024-11-09 11:25:06,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:25:06,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 11:25:06,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:25:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 11:25:06,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-09 11:25:06,207 INFO L87 Difference]: Start difference. First operand 78 states and 94 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 11:25:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:25:06,260 INFO L93 Difference]: Finished difference Result 78 states and 94 transitions. [2024-11-09 11:25:06,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 11:25:06,260 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 67 [2024-11-09 11:25:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:25:06,261 INFO L225 Difference]: With dead ends: 78 [2024-11-09 11:25:06,261 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 11:25:06,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-09 11:25:06,262 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:25:06,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 109 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:25:06,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 11:25:06,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 11:25:06,263 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) [2024-11-09 11:25:06,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 11:25:06,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2024-11-09 11:25:06,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:25:06,263 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 11:25:06,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 11:25:06,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 11:25:06,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 11:25:06,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-09 11:25:06,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-09 11:25:06,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-09 11:25:06,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-09 11:25:06,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 11:25:06,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:25:06,470 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-09 11:25:06,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 11:25:06,536 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 11:25:06,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 11:25:06,553 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 11:25:06,554 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 11:25:06,554 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 11:25:06,556 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 11:25:06,560 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 11:25:06,560 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 11:25:06,560 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 11:25:06,563 WARN L156 FloydHoareUtils]: Requires clause for node_create contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= |old(#memory_$Pointer$#2.base)| |#memory_$Pointer$#2.base|) (= |#memory_int#2| |old(#memory_int#2)|) (= |#memory_$Pointer$#2.offset| |old(#memory_$Pointer$#2.offset)|) (= |old(#valid)| |#valid|)) Eliminated clause: true [2024-11-09 11:25:06,573 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 11:25:06,573 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 11:25:06,573 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 11:25:06,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:25:06 BoogieIcfgContainer [2024-11-09 11:25:06,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 11:25:06,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 11:25:06,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 11:25:06,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 11:25:06,575 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:25:02" (3/4) ... [2024-11-09 11:25:06,577 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 11:25:06,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2024-11-09 11:25:06,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-09 11:25:06,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 11:25:06,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 11:25:06,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 11:25:06,652 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 11:25:06,652 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 11:25:06,652 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 11:25:06,653 INFO L158 Benchmark]: Toolchain (without parser) took 4740.82ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 96.2MB in the beginning and 108.1MB in the end (delta: -11.9MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2024-11-09 11:25:06,653 INFO L158 Benchmark]: CDTParser took 1.01ms. Allocated memory is still 167.8MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:25:06,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.95ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 126.6MB in the end (delta: -30.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 11:25:06,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:25:06,653 INFO L158 Benchmark]: Boogie Preprocessor took 69.20ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 121.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:25:06,654 INFO L158 Benchmark]: RCFGBuilder took 304.44ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 103.5MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 11:25:06,654 INFO L158 Benchmark]: TraceAbstraction took 3752.99ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 102.6MB in the beginning and 113.3MB in the end (delta: -10.7MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2024-11-09 11:25:06,654 INFO L158 Benchmark]: Witness Printer took 78.06ms. Allocated memory is still 255.9MB. Free memory was 113.3MB in the beginning and 108.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 11:25:06,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01ms. Allocated memory is still 167.8MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.95ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 126.6MB in the end (delta: -30.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.41ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.20ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 121.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.44ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 103.5MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3752.99ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 102.6MB in the beginning and 113.3MB in the end (delta: -10.7MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. * Witness Printer took 78.06ms. Allocated memory is still 255.9MB. Free memory was 113.3MB in the beginning and 108.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID * 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: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 803 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 607 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 196 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=5, InterpolantAutomatonStates: 40, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 396 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 491 ConstructedInterpolants, 0 QuantifiedInterpolants, 1272 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1104 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 277/410 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 4 specifications checked. All of them hold - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: (((len <= 2) && (len <= 1)) || ((2 == len) && (len == 2))) - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: ((((1 <= i) && (i <= 2147483646)) && (len <= 2)) || ((i == 0) && (len <= 2))) - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 11:25:06,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE