./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU --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 de445246a07a3c09c24ae1b242201e03863b04cf8c0f903588b21168932b2662 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:46,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:46,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:05:46,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:46,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:46,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:46,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:46,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:46,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:05:46,852 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:05:46,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:46,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:46,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:46,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:46,858 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:46,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:46,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:46,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:46,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:46,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:46,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:46,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:46,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:46,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:46,866 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:46,866 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:05:46,867 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:05:46,867 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:46,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:46,868 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:46,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:46,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:46,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:05:46,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:46,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:46,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:46,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:46,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:46,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:46,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:46,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:46,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:46,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:46,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:46,878 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de445246a07a3c09c24ae1b242201e03863b04cf8c0f903588b21168932b2662 [2024-10-31 22:05:47,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:47,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:47,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:47,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:47,266 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:47,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c Unable to find full path for "g++" [2024-10-31 22:05:49,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:49,748 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:49,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound10.c [2024-10-31 22:05:49,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/data/5d7bed9b5/1e5bef87c143494eb67f239a30e3c92a/FLAG246862df9 [2024-10-31 22:05:50,079 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/data/5d7bed9b5/1e5bef87c143494eb67f239a30e3c92a [2024-10-31 22:05:50,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:50,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:50,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:50,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:50,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:50,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522e1441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50, skipping insertion in model container [2024-10-31 22:05:50,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:50,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:50,407 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:50,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:50,460 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:50,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50 WrapperNode [2024-10-31 22:05:50,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:50,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:50,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:50,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:50,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,512 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2024-10-31 22:05:50,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:50,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:50,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:50,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:50,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,537 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,562 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:05:50,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:50,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:50,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:50,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:50,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (1/1) ... [2024-10-31 22:05:50,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:50,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:50,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:50,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:05:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:50,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:50,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:05:50,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:05:50,753 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:50,756 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:50,949 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-31 22:05:50,950 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:50,974 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:50,974 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:05:50,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:50 BoogieIcfgContainer [2024-10-31 22:05:50,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:50,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:50,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:50,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:50,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:50" (1/3) ... [2024-10-31 22:05:50,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28523597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:50, skipping insertion in model container [2024-10-31 22:05:50,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:50" (2/3) ... [2024-10-31 22:05:50,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28523597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:50, skipping insertion in model container [2024-10-31 22:05:50,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:50" (3/3) ... [2024-10-31 22:05:50,993 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_unwindbound10.c [2024-10-31 22:05:51,019 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:51,020 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:05:51,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:51,140 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;@7cb20564, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:51,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-31 22:05:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 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) [2024-10-31 22:05:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:05:51,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:51,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:05:51,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-31 22:05:51,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2024-10-31 22:05:51,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:51,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368175470] [2024-10-31 22:05:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:51,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:51,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:51,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368175470] [2024-10-31 22:05:51,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368175470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:51,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:51,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:51,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073111430] [2024-10-31 22:05:51,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:51,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:51,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:51,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:51,424 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-31 22:05:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:51,529 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2024-10-31 22:05:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:05:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-31 22:05:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:51,545 INFO L225 Difference]: With dead ends: 38 [2024-10-31 22:05:51,545 INFO L226 Difference]: Without dead ends: 13 [2024-10-31 22:05:51,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:05:51,553 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:51,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 28 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:05:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-10-31 22:05:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-10-31 22:05:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:05:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-10-31 22:05:51,602 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2024-10-31 22:05:51,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:51,605 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-10-31 22:05:51,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-31 22:05:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-10-31 22:05:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:05:51,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:51,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:05:51,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:51,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-31 22:05:51,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2024-10-31 22:05:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:51,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420593178] [2024-10-31 22:05:51,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:51,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:51,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:51,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420593178] [2024-10-31 22:05:51,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420593178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:51,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:51,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:51,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138764025] [2024-10-31 22:05:51,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:51,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:51,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:51,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:51,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:51,710 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:51,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:51,758 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-10-31 22:05:51,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:05:51,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-31 22:05:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:51,761 INFO L225 Difference]: With dead ends: 18 [2024-10-31 22:05:51,761 INFO L226 Difference]: Without dead ends: 17 [2024-10-31 22:05:51,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:05:51,766 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:51,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:05:51,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-31 22:05:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-10-31 22:05:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:05:51,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-10-31 22:05:51,776 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2024-10-31 22:05:51,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:51,776 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-10-31 22:05:51,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:05:51,777 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-10-31 22:05:51,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:05:51,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:51,778 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:51,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:51,779 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-31 22:05:51,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:51,779 INFO L85 PathProgramCache]: Analyzing trace with hash 610940254, now seen corresponding path program 1 times [2024-10-31 22:05:51,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:51,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970186361] [2024-10-31 22:05:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:51,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:05:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:52,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:52,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970186361] [2024-10-31 22:05:52,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970186361] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:52,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597417692] [2024-10-31 22:05:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:52,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:52,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:05:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:52,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:05:52,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:52,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:52,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597417692] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:05:52,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:05:52,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2024-10-31 22:05:52,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166002349] [2024-10-31 22:05:52,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:05:52,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:05:52,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:52,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:05:52,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:05:52,379 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:52,577 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2024-10-31 22:05:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:05:52,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2024-10-31 22:05:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:52,579 INFO L225 Difference]: With dead ends: 47 [2024-10-31 22:05:52,579 INFO L226 Difference]: Without dead ends: 46 [2024-10-31 22:05:52,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:05:52,581 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:52,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 51 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:05:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-31 22:05:52,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-31 22:05:52,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:05:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2024-10-31 22:05:52,593 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 15 [2024-10-31 22:05:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:52,594 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2024-10-31 22:05:52,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:05:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2024-10-31 22:05:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 22:05:52,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:52,596 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-10-31 22:05:52,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:05:52,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:52,801 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-31 22:05:52,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:52,802 INFO L85 PathProgramCache]: Analyzing trace with hash -529761367, now seen corresponding path program 2 times [2024-10-31 22:05:52,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:52,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531680170] [2024-10-31 22:05:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:52,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:05:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:05:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:05:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 22:05:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:53,565 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:05:53,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:53,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531680170] [2024-10-31 22:05:53,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531680170] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:53,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322454767] [2024-10-31 22:05:53,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:05:53,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:53,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:53,571 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:53,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:05:53,662 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:05:53,663 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:05:53,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:05:53,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:53,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:05:54,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322454767] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:05:54,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:05:54,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 21 [2024-10-31 22:05:54,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275433686] [2024-10-31 22:05:54,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:05:54,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-31 22:05:54,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:54,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-31 22:05:54,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:05:54,154 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:05:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:54,760 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2024-10-31 22:05:54,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-31 22:05:54,760 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 45 [2024-10-31 22:05:54,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:54,762 INFO L225 Difference]: With dead ends: 107 [2024-10-31 22:05:54,764 INFO L226 Difference]: Without dead ends: 106 [2024-10-31 22:05:54,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-10-31 22:05:54,767 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 85 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:54,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 105 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:05:54,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-31 22:05:54,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-10-31 22:05:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:05:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2024-10-31 22:05:54,786 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 45 [2024-10-31 22:05:54,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:54,787 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2024-10-31 22:05:54,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:05:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2024-10-31 22:05:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-31 22:05:54,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:54,789 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-10-31 22:05:54,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:05:54,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:54,991 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-31 22:05:54,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:54,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1153550209, now seen corresponding path program 3 times [2024-10-31 22:05:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:54,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840024176] [2024-10-31 22:05:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:54,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:55,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:05:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:55,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:05:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:55,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:05:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:55,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 22:05:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:55,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:05:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:05:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 22:05:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:05:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-31 22:05:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-31 22:05:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:56,062 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-31 22:05:56,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:56,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840024176] [2024-10-31 22:05:56,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840024176] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:56,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896406560] [2024-10-31 22:05:56,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:05:56,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:56,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:56,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:56,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:05:56,155 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-31 22:05:56,155 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:05:56,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:05:56,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-10-31 22:05:56,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:05:56,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896406560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:56,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:05:56,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 24 [2024-10-31 22:05:56,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476798356] [2024-10-31 22:05:56,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:56,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:05:56,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:56,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:05:56,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2024-10-31 22:05:56,235 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:05:56,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:56,330 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2024-10-31 22:05:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:05:56,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2024-10-31 22:05:56,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:56,332 INFO L225 Difference]: With dead ends: 106 [2024-10-31 22:05:56,333 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:05:56,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-31 22:05:56,335 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:56,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:05:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:05:56,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:05:56,337 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) [2024-10-31 22:05:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:05:56,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-10-31 22:05:56,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:56,337 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:05:56,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:05:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:05:56,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:05:56,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-31 22:05:56,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-31 22:05:56,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:05:56,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:56,550 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-10-31 22:05:56,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 22:05:56,857 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:05:56,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:05:56 BoogieIcfgContainer [2024-10-31 22:05:56,884 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:05:56,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:05:56,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:05:56,885 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:05:56,886 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:50" (3/4) ... [2024-10-31 22:05:56,889 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:05:56,894 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-31 22:05:56,899 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-31 22:05:56,899 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-31 22:05:56,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 22:05:56,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:05:57,008 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:05:57,008 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:05:57,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:05:57,012 INFO L158 Benchmark]: Toolchain (without parser) took 6925.13ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 76.7MB in the beginning and 52.1MB in the end (delta: 24.5MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2024-10-31 22:05:57,013 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 92.6MB in the end (delta: 137.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:05:57,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.21ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 64.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:05:57,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.07ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:05:57,014 INFO L158 Benchmark]: Boogie Preprocessor took 66.93ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 61.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:05:57,014 INFO L158 Benchmark]: RCFGBuilder took 391.82ms. Allocated memory is still 117.4MB. Free memory was 60.9MB in the beginning and 50.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:05:57,014 INFO L158 Benchmark]: TraceAbstraction took 5902.75ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 49.7MB in the beginning and 57.4MB in the end (delta: -7.6MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-10-31 22:05:57,015 INFO L158 Benchmark]: Witness Printer took 123.96ms. Allocated memory is still 165.7MB. Free memory was 57.4MB in the beginning and 52.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:05:57,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 92.6MB in the end (delta: 137.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.21ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 64.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.07ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.93ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 61.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.82ms. Allocated memory is still 117.4MB. Free memory was 60.9MB in the beginning and 50.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5902.75ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 49.7MB in the beginning and 57.4MB in the end (delta: -7.6MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * Witness Printer took 123.96ms. Allocated memory is still 165.7MB. Free memory was 57.4MB in the beginning and 52.1MB 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.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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 227 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 177 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 50 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 339 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 821 SizeOfPredicates, 13 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 708/1185 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 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((counter <= 10) && (0 <= counter)) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (0 <= counter) Ensures: ((0 <= counter) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-10-31 22:05:57,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141e4404-c86c-4586-a277-85ea922e0733/bin/uautomizer-verify-4GaUIPS5ZU/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