./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB --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 7e073a4c36b82f2b6062e496bb836cd3d16667ec7228f4ab2b6689e74fa81265 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:29:46,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:29:46,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:29:46,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:29:46,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:29:46,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:29:46,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:29:46,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:29:46,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:29:46,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:29:46,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:29:46,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:29:46,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:29:46,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:29:46,748 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:29:46,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:29:46,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:29:46,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:29:46,750 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:29:46,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:29:46,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:29:46,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:29:46,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:46,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:29:46,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:29:46,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:29:46,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:29:46,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:46,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:29:46,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:29:46,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:29:46,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:29:46,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:29:46,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:29:46,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:29:46,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:29:46,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:29:46,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:29:46,753 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 7e073a4c36b82f2b6062e496bb836cd3d16667ec7228f4ab2b6689e74fa81265 [2024-11-28 03:29:47,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:29:47,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:29:47,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:29:47,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:29:47,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:29:47,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i [2024-11-28 03:29:50,207 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/data/b5bac6c54/a4c12d9a0a56465c97693e9df7d44b96/FLAGa3111a76b [2024-11-28 03:29:50,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:29:50,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i [2024-11-28 03:29:50,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/data/b5bac6c54/a4c12d9a0a56465c97693e9df7d44b96/FLAGa3111a76b [2024-11-28 03:29:50,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/data/b5bac6c54/a4c12d9a0a56465c97693e9df7d44b96 [2024-11-28 03:29:50,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:29:50,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:29:50,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:29:50,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:29:50,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:29:50,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e143415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50, skipping insertion in model container [2024-11-28 03:29:50,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,619 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:29:50,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:29:50,859 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:29:50,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:29:50,902 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:29:50,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50 WrapperNode [2024-11-28 03:29:50,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:29:50,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:29:50,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:29:50,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:29:50,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,943 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-28 03:29:50,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:29:50,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:29:50,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:29:50,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:29:50,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,975 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:29:50,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,979 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:50,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:29:50,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:29:50,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:29:50,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:29:50,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (1/1) ... [2024-11-28 03:29:51,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:51,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:51,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:29:51,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:29:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:29:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:29:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:29:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:29:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:29:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:29:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:29:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:29:51,125 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:29:51,127 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:29:51,286 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-28 03:29:51,286 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:29:51,297 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:29:51,297 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:29:51,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:51 BoogieIcfgContainer [2024-11-28 03:29:51,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:29:51,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:29:51,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:29:51,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:29:51,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:29:50" (1/3) ... [2024-11-28 03:29:51,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2aa760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:29:51, skipping insertion in model container [2024-11-28 03:29:51,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:50" (2/3) ... [2024-11-28 03:29:51,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2aa760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:29:51, skipping insertion in model container [2024-11-28 03:29:51,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:51" (3/3) ... [2024-11-28 03:29:51,311 INFO L128 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound20.i [2024-11-28 03:29:51,331 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:29:51,334 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG divbin_unwindbound20.i that has 3 procedures, 37 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-28 03:29:51,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:29:51,430 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;@98ae7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:29:51,430 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 03:29:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:29:51,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:29:51,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:51,443 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:51,444 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)] === [2024-11-28 03:29:51,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:51,452 INFO L85 PathProgramCache]: Analyzing trace with hash -604571649, now seen corresponding path program 1 times [2024-11-28 03:29:51,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:51,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171990433] [2024-11-28 03:29:51,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:29:51,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:51,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171990433] [2024-11-28 03:29:51,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171990433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:51,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436001202] [2024-11-28 03:29:51,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:51,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:51,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:51,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:51,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:29:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:51,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:29:51,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:29:51,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:29:51,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436001202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:51,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:51,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:29:51,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901311069] [2024-11-28 03:29:51,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:51,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:29:51,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:51,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:29:51,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:29:51,703 INFO L87 Difference]: Start difference. First operand has 37 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:29:51,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:51,724 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2024-11-28 03:29:51,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:29:51,726 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-28 03:29:51,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:51,733 INFO L225 Difference]: With dead ends: 70 [2024-11-28 03:29:51,733 INFO L226 Difference]: Without dead ends: 29 [2024-11-28 03:29:51,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:29:51,740 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:51,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:29:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-28 03:29:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-28 03:29:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:29:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-28 03:29:51,778 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 15 [2024-11-28 03:29:51,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:51,778 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-28 03:29:51,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:29:51,779 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-28 03:29:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:29:51,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:51,780 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:51,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:29:51,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:29:51,984 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)] === [2024-11-28 03:29:51,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:51,985 INFO L85 PathProgramCache]: Analyzing trace with hash 153751231, now seen corresponding path program 1 times [2024-11-28 03:29:51,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:51,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597779421] [2024-11-28 03:29:51,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:51,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:52,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:52,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:52,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597779421] [2024-11-28 03:29:52,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597779421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:52,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:52,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:29:52,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284137553] [2024-11-28 03:29:52,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:52,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:52,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:52,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:52,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:52,094 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-28 03:29:52,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:52,145 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-28 03:29:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:29:52,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 15 [2024-11-28 03:29:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:52,146 INFO L225 Difference]: With dead ends: 34 [2024-11-28 03:29:52,146 INFO L226 Difference]: Without dead ends: 33 [2024-11-28 03:29:52,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:29:52,147 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:52,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 61 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:29:52,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-28 03:29:52,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2024-11-28 03:29:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.3) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:29:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-28 03:29:52,154 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2024-11-28 03:29:52,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:52,155 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-28 03:29:52,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-28 03:29:52,155 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-28 03:29:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 03:29:52,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:52,156 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:52,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:29:52,156 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:52,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:52,157 INFO L85 PathProgramCache]: Analyzing trace with hash 471320908, now seen corresponding path program 1 times [2024-11-28 03:29:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:52,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443236437] [2024-11-28 03:29:52,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:52,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:52,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443236437] [2024-11-28 03:29:52,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443236437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:52,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:52,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:29:52,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756815857] [2024-11-28 03:29:52,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:52,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:52,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:52,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:52,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:52,316 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-28 03:29:52,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:52,384 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2024-11-28 03:29:52,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:29:52,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 16 [2024-11-28 03:29:52,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:52,386 INFO L225 Difference]: With dead ends: 46 [2024-11-28 03:29:52,386 INFO L226 Difference]: Without dead ends: 32 [2024-11-28 03:29:52,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:29:52,387 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:52,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:29:52,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-28 03:29:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-28 03:29:52,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:29:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-11-28 03:29:52,401 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 16 [2024-11-28 03:29:52,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:52,401 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-11-28 03:29:52,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-28 03:29:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-11-28 03:29:52,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 03:29:52,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:52,403 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:52,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:29:52,404 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)] === [2024-11-28 03:29:52,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:52,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1297086228, now seen corresponding path program 1 times [2024-11-28 03:29:52,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:52,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240015062] [2024-11-28 03:29:52,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:52,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:52,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:52,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240015062] [2024-11-28 03:29:52,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240015062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:52,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:52,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:29:52,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920859152] [2024-11-28 03:29:52,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:52,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:29:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:52,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:29:52,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:29:52,583 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-28 03:29:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:52,680 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2024-11-28 03:29:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:29:52,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 20 [2024-11-28 03:29:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:52,682 INFO L225 Difference]: With dead ends: 32 [2024-11-28 03:29:52,683 INFO L226 Difference]: Without dead ends: 31 [2024-11-28 03:29:52,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:29:52,685 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 27 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:52,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 63 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:29:52,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-28 03:29:52,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-28 03:29:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:29:52,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-28 03:29:52,700 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2024-11-28 03:29:52,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:52,701 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-28 03:29:52,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-28 03:29:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-28 03:29:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:29:52,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:52,703 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:52,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:29:52,704 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)] === [2024-11-28 03:29:52,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:52,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1554967468, now seen corresponding path program 1 times [2024-11-28 03:29:52,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:52,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101952391] [2024-11-28 03:29:52,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:52,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:52,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:52,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101952391] [2024-11-28 03:29:52,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101952391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:52,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:52,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:29:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355567492] [2024-11-28 03:29:52,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:52,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:29:52,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:52,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:29:52,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:29:52,878 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-28 03:29:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:52,979 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2024-11-28 03:29:52,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:29:52,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 21 [2024-11-28 03:29:52,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:52,981 INFO L225 Difference]: With dead ends: 41 [2024-11-28 03:29:52,981 INFO L226 Difference]: Without dead ends: 40 [2024-11-28 03:29:52,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:29:52,982 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:52,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 94 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:29:52,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-28 03:29:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2024-11-28 03:29:52,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:29:52,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2024-11-28 03:29:52,989 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 21 [2024-11-28 03:29:52,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:52,989 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2024-11-28 03:29:52,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-28 03:29:52,990 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2024-11-28 03:29:52,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:29:52,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:52,990 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:52,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:29:52,991 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:52,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:52,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1555006197, now seen corresponding path program 1 times [2024-11-28 03:29:52,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:52,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038205354] [2024-11-28 03:29:52,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:52,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:53,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:53,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038205354] [2024-11-28 03:29:53,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038205354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:53,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428405309] [2024-11-28 03:29:53,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:53,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:53,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:53,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:53,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:29:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:53,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:29:53,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:53,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:29:53,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428405309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:53,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:53,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 03:29:53,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442952784] [2024-11-28 03:29:53,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:53,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:29:53,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:53,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:29:53,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:29:53,248 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-28 03:29:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:53,331 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-11-28 03:29:53,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:29:53,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 21 [2024-11-28 03:29:53,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:53,336 INFO L225 Difference]: With dead ends: 39 [2024-11-28 03:29:53,336 INFO L226 Difference]: Without dead ends: 38 [2024-11-28 03:29:53,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:29:53,337 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:53,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 78 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:29:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-28 03:29:53,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2024-11-28 03:29:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:29:53,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2024-11-28 03:29:53,349 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 21 [2024-11-28 03:29:53,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:53,350 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2024-11-28 03:29:53,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-28 03:29:53,350 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2024-11-28 03:29:53,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 03:29:53,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:53,351 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:53,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:29:53,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:53,552 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:53,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1565410493, now seen corresponding path program 1 times [2024-11-28 03:29:53,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:53,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224387846] [2024-11-28 03:29:53,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:53,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:53,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224387846] [2024-11-28 03:29:53,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224387846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38431297] [2024-11-28 03:29:53,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:53,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:53,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:53,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:53,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:29:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:53,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:29:53,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:53,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:53,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38431297] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:53,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:53,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-11-28 03:29:53,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375304256] [2024-11-28 03:29:53,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:53,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:29:53,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:53,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:29:53,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:29:53,899 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:29:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:54,058 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2024-11-28 03:29:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:29:54,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 25 [2024-11-28 03:29:54,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:54,060 INFO L225 Difference]: With dead ends: 68 [2024-11-28 03:29:54,060 INFO L226 Difference]: Without dead ends: 56 [2024-11-28 03:29:54,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:29:54,061 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 25 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:54,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 117 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:29:54,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-28 03:29:54,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2024-11-28 03:29:54,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:29:54,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-11-28 03:29:54,069 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 25 [2024-11-28 03:29:54,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:54,069 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-11-28 03:29:54,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:29:54,070 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-11-28 03:29:54,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:29:54,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:54,071 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:54,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:29:54,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 03:29:54,272 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:54,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:54,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1285172317, now seen corresponding path program 1 times [2024-11-28 03:29:54,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:54,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924186464] [2024-11-28 03:29:54,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:54,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:54,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:54,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924186464] [2024-11-28 03:29:54,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924186464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:54,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386378670] [2024-11-28 03:29:54,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:54,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:54,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:54,461 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:54,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:29:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:54,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:29:54,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:54,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:54,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386378670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:54,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:54,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2024-11-28 03:29:54,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667831908] [2024-11-28 03:29:54,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:54,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:29:54,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:54,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:29:54,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:29:54,773 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:29:55,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:55,170 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2024-11-28 03:29:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:29:55,171 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-28 03:29:55,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:55,172 INFO L225 Difference]: With dead ends: 77 [2024-11-28 03:29:55,172 INFO L226 Difference]: Without dead ends: 76 [2024-11-28 03:29:55,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:29:55,173 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 110 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:55,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 122 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:29:55,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-28 03:29:55,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2024-11-28 03:29:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.15) internal successors, (69), 60 states have internal predecessors, (69), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:29:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2024-11-28 03:29:55,184 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 26 [2024-11-28 03:29:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:55,185 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2024-11-28 03:29:55,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:29:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2024-11-28 03:29:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 03:29:55,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:55,186 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:55,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:29:55,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 03:29:55,387 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:55,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:55,388 INFO L85 PathProgramCache]: Analyzing trace with hash -712969754, now seen corresponding path program 1 times [2024-11-28 03:29:55,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:55,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581058768] [2024-11-28 03:29:55,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:55,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:29:55,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581058768] [2024-11-28 03:29:55,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581058768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434866791] [2024-11-28 03:29:55,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:55,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:55,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:55,794 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:55,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:29:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:55,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:29:55,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:29:56,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:29:56,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434866791] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:56,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:56,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-11-28 03:29:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732500964] [2024-11-28 03:29:56,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:56,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 03:29:56,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:56,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 03:29:56,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:29:56,411 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-28 03:29:57,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:57,219 INFO L93 Difference]: Finished difference Result 223 states and 253 transitions. [2024-11-28 03:29:57,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-28 03:29:57,219 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 54 [2024-11-28 03:29:57,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:57,221 INFO L225 Difference]: With dead ends: 223 [2024-11-28 03:29:57,224 INFO L226 Difference]: Without dead ends: 222 [2024-11-28 03:29:57,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2024-11-28 03:29:57,227 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 214 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:57,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 207 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:29:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-28 03:29:57,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 169. [2024-11-28 03:29:57,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 141 states have (on average 1.127659574468085) internal successors, (159), 141 states have internal predecessors, (159), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:29:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 187 transitions. [2024-11-28 03:29:57,254 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 187 transitions. Word has length 54 [2024-11-28 03:29:57,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:57,255 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 187 transitions. [2024-11-28 03:29:57,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-28 03:29:57,255 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 187 transitions. [2024-11-28 03:29:57,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:29:57,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:57,257 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:57,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:29:57,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:57,462 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:57,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:57,463 INFO L85 PathProgramCache]: Analyzing trace with hash -948772198, now seen corresponding path program 1 times [2024-11-28 03:29:57,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:57,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640809472] [2024-11-28 03:29:57,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:57,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:29:57,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:57,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640809472] [2024-11-28 03:29:57,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640809472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:57,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902166154] [2024-11-28 03:29:57,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:57,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:57,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:57,850 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:57,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:29:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:57,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:29:57,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:29:58,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:29:58,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902166154] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:58,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:58,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2024-11-28 03:29:58,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92064369] [2024-11-28 03:29:58,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:58,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:29:58,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:58,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:29:58,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:29:58,398 INFO L87 Difference]: Start difference. First operand 169 states and 187 transitions. Second operand has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:59,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:59,015 INFO L93 Difference]: Finished difference Result 249 states and 281 transitions. [2024-11-28 03:29:59,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 03:29:59,016 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-11-28 03:29:59,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:59,018 INFO L225 Difference]: With dead ends: 249 [2024-11-28 03:29:59,018 INFO L226 Difference]: Without dead ends: 223 [2024-11-28 03:29:59,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:29:59,021 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 89 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:59,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 183 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:29:59,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-28 03:29:59,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 199. [2024-11-28 03:29:59,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 171 states have (on average 1.1403508771929824) internal successors, (195), 171 states have internal predecessors, (195), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:29:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 223 transitions. [2024-11-28 03:29:59,059 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 223 transitions. Word has length 62 [2024-11-28 03:29:59,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:59,060 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 223 transitions. [2024-11-28 03:29:59,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:59,060 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 223 transitions. [2024-11-28 03:29:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:29:59,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:59,068 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:59,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:59,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:59,269 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:59,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:59,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2085312646, now seen corresponding path program 2 times [2024-11-28 03:29:59,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:59,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859626990] [2024-11-28 03:29:59,270 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:29:59,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:59,309 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:29:59,309 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:29:59,466 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-28 03:29:59,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:59,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859626990] [2024-11-28 03:29:59,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859626990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:59,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:59,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:29:59,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325052146] [2024-11-28 03:29:59,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:59,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:29:59,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:59,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:29:59,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:29:59,470 INFO L87 Difference]: Start difference. First operand 199 states and 223 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:29:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:59,546 INFO L93 Difference]: Finished difference Result 225 states and 251 transitions. [2024-11-28 03:29:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:29:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 92 [2024-11-28 03:29:59,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:59,550 INFO L225 Difference]: With dead ends: 225 [2024-11-28 03:29:59,552 INFO L226 Difference]: Without dead ends: 199 [2024-11-28 03:29:59,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:29:59,555 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:59,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 94 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:29:59,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-28 03:29:59,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 155. [2024-11-28 03:29:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 127 states have (on average 1.1181102362204725) internal successors, (142), 127 states have internal predecessors, (142), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:29:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 170 transitions. [2024-11-28 03:29:59,598 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 170 transitions. Word has length 92 [2024-11-28 03:29:59,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:59,599 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 170 transitions. [2024-11-28 03:29:59,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:29:59,601 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 170 transitions. [2024-11-28 03:29:59,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 03:29:59,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:59,608 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:59,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:29:59,608 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:29:59,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:59,609 INFO L85 PathProgramCache]: Analyzing trace with hash -699431517, now seen corresponding path program 1 times [2024-11-28 03:29:59,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:59,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092943077] [2024-11-28 03:29:59,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:59,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:00,850 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-28 03:30:00,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092943077] [2024-11-28 03:30:00,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092943077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37306639] [2024-11-28 03:30:00,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:00,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:00,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:00,856 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:00,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:30:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:00,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:30:01,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:30:01,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-28 03:30:03,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37306639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:30:03,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:30:03,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 65 [2024-11-28 03:30:03,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556657293] [2024-11-28 03:30:03,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:03,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-28 03:30:03,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:03,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-28 03:30:03,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=974, Invalid=3316, Unknown=0, NotChecked=0, Total=4290 [2024-11-28 03:30:03,333 INFO L87 Difference]: Start difference. First operand 155 states and 170 transitions. Second operand has 66 states, 65 states have (on average 3.3384615384615386) internal successors, (217), 66 states have internal predecessors, (217), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2024-11-28 03:30:06,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:06,427 INFO L93 Difference]: Finished difference Result 533 states and 600 transitions. [2024-11-28 03:30:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-28 03:30:06,428 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 3.3384615384615386) internal successors, (217), 66 states have internal predecessors, (217), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) Word has length 114 [2024-11-28 03:30:06,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:06,437 INFO L225 Difference]: With dead ends: 533 [2024-11-28 03:30:06,437 INFO L226 Difference]: Without dead ends: 532 [2024-11-28 03:30:06,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3568 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4405, Invalid=11597, Unknown=0, NotChecked=0, Total=16002 [2024-11-28 03:30:06,448 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 535 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:06,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 305 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:30:06,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-28 03:30:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 325. [2024-11-28 03:30:06,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 267 states have (on average 1.1161048689138577) internal successors, (298), 267 states have internal predecessors, (298), 29 states have call successors, (29), 28 states have call predecessors, (29), 28 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 03:30:06,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 356 transitions. [2024-11-28 03:30:06,496 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 356 transitions. Word has length 114 [2024-11-28 03:30:06,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:06,496 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 356 transitions. [2024-11-28 03:30:06,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 3.3384615384615386) internal successors, (217), 66 states have internal predecessors, (217), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2024-11-28 03:30:06,498 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 356 transitions. [2024-11-28 03:30:06,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 03:30:06,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:06,506 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:06,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:30:06,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:06,707 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-28 03:30:06,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:06,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1346053068, now seen corresponding path program 2 times [2024-11-28 03:30:06,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:06,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988398235] [2024-11-28 03:30:06,708 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:30:06,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:06,806 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:30:06,806 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:30:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 1634 trivial. 0 not checked. [2024-11-28 03:30:07,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:07,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988398235] [2024-11-28 03:30:07,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988398235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:07,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:07,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:30:07,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740996704] [2024-11-28 03:30:07,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:07,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:30:07,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:07,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:30:07,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:30:07,227 INFO L87 Difference]: Start difference. First operand 325 states and 356 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:30:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:07,313 INFO L93 Difference]: Finished difference Result 329 states and 360 transitions. [2024-11-28 03:30:07,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:30:07,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 229 [2024-11-28 03:30:07,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:07,315 INFO L225 Difference]: With dead ends: 329 [2024-11-28 03:30:07,315 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:30:07,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:30:07,317 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:07,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 67 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:30:07,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:30:07,318 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) [2024-11-28 03:30:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:30:07,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2024-11-28 03:30:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:07,318 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:30:07,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:30:07,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:30:07,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:30:07,322 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-28 03:30:07,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-28 03:30:07,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-28 03:30:07,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-28 03:30:07,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:30:07,327 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:07,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:30:08,667 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:30:08,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:30:08 BoogieIcfgContainer [2024-11-28 03:30:08,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:30:08,685 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:30:08,685 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:30:08,686 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:30:08,687 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:51" (3/4) ... [2024-11-28 03:30:08,689 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:30:08,697 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:30:08,697 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 03:30:08,702 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 03:30:08,702 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:30:08,703 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:30:08,703 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:30:08,814 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:30:08,815 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:30:08,815 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:30:08,816 INFO L158 Benchmark]: Toolchain (without parser) took 18276.93ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 119.7MB in the beginning and 319.0MB in the end (delta: -199.3MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2024-11-28 03:30:08,816 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:08,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.68ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 108.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:08,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.29ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:08,818 INFO L158 Benchmark]: Boogie Preprocessor took 50.44ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 105.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:08,818 INFO L158 Benchmark]: RCFGBuilder took 301.29ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 94.4MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:30:08,819 INFO L158 Benchmark]: TraceAbstraction took 17384.23ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 93.9MB in the beginning and 327.2MB in the end (delta: -233.4MB). Peak memory consumption was 207.7MB. Max. memory is 16.1GB. [2024-11-28 03:30:08,820 INFO L158 Benchmark]: Witness Printer took 129.62ms. Allocated memory is still 394.3MB. Free memory was 327.2MB in the beginning and 319.0MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:08,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.68ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 108.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.29ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.44ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 105.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.29ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 94.4MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17384.23ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 93.9MB in the beginning and 327.2MB in the end (delta: -233.4MB). Peak memory consumption was 207.7MB. Max. memory is 16.1GB. * Witness Printer took 129.62ms. Allocated memory is still 394.3MB. Free memory was 327.2MB in the beginning and 319.0MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 15.9s, OverallIterations: 13, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1079 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1079 mSDsluCounter, 1503 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1173 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 994 IncrementalHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 330 mSDtfsCounter, 994 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 818 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4643 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=12, InterpolantAutomatonStates: 248, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 356 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 1027 NumberOfCodeBlocks, 1027 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1283 ConstructedInterpolants, 0 QuantifiedInterpolants, 2457 SizeOfPredicates, 42 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 25 InterpolantComputations, 8 PerfectInterpolantSequences, 2446/3493 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 20)) || ((21 <= counter) && (counter <= 2147483645))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 20)) || (counter == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:30:08,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb911ea5-e53f-4dab-9bb3-85cbe5081002/bin/uautomizer-verify-aQ6SnzHsRB/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