./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC --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 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:39:39,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:39:39,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:39:39,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:39:39,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:39:39,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:39:39,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:39:39,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:39:39,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:39:39,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:39:39,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:39:39,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:39:39,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:39:39,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:39:39,601 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:39:39,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:39:39,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:39:39,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:39:39,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:39:39,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:39:39,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:39:39,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:39:39,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:39:39,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:39:39,603 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:39:39,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:39:39,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:39:39,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:39:39,604 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:39:39,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:39:39,604 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:39:39,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:39:39,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:39:39,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:39:39,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:39:39,606 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_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC 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 -> 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 [2024-11-24 00:39:39,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:39:39,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:39:39,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:39:39,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:39:39,967 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:39:39,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-11-24 00:39:43,380 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/data/e21daa36c/339e0e3fda104eeeba432de1bfb6a558/FLAG5c0940bb9 [2024-11-24 00:39:43,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:39:43,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-11-24 00:39:43,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/data/e21daa36c/339e0e3fda104eeeba432de1bfb6a558/FLAG5c0940bb9 [2024-11-24 00:39:43,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/data/e21daa36c/339e0e3fda104eeeba432de1bfb6a558 [2024-11-24 00:39:43,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:39:43,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:39:43,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:39:43,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:39:43,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:39:43,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:39:43" (1/1) ... [2024-11-24 00:39:43,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454fb1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:43, skipping insertion in model container [2024-11-24 00:39:43,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:39:43" (1/1) ... [2024-11-24 00:39:43,844 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:39:44,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:39:44,146 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:39:44,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:39:44,313 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:39:44,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44 WrapperNode [2024-11-24 00:39:44,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:39:44,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:39:44,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:39:44,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:39:44,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,396 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 517 [2024-11-24 00:39:44,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:39:44,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:39:44,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:39:44,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:39:44,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,425 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,464 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]. [2024-11-24 00:39:44,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:39:44,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:39:44,527 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:39:44,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:39:44,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (1/1) ... [2024-11-24 00:39:44,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:39:44,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:44,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:39:44,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:39:44,618 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-11-24 00:39:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-11-24 00:39:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:39:44,619 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-11-24 00:39:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-11-24 00:39:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-24 00:39:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-24 00:39:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-11-24 00:39:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-11-24 00:39:44,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:39:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:39:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:39:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-11-24 00:39:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-11-24 00:39:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:39:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:39:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-11-24 00:39:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-11-24 00:39:44,794 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:39:44,797 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:39:45,712 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-24 00:39:45,714 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:39:45,740 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:39:45,743 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:39:45,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:39:45 BoogieIcfgContainer [2024-11-24 00:39:45,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:39:45,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:39:45,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:39:45,757 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:39:45,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:39:43" (1/3) ... [2024-11-24 00:39:45,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6625fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:39:45, skipping insertion in model container [2024-11-24 00:39:45,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:39:44" (2/3) ... [2024-11-24 00:39:45,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6625fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:39:45, skipping insertion in model container [2024-11-24 00:39:45,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:39:45" (3/3) ... [2024-11-24 00:39:45,761 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-11-24 00:39:45,782 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:39:45,786 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c that has 8 procedures, 186 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-24 00:39:45,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:39:45,943 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;@69cc6f67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:39:45,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:39:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 145 states have (on average 1.5448275862068965) internal successors, (224), 147 states have internal predecessors, (224), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 00:39:45,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 00:39:45,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:39:45,977 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:45,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:39:45,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash -480228656, now seen corresponding path program 1 times [2024-11-24 00:39:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:45,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617696446] [2024-11-24 00:39:45,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:45,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:39:46,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:46,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617696446] [2024-11-24 00:39:46,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617696446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:39:46,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874533030] [2024-11-24 00:39:46,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:46,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:46,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:46,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:39:46,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:39:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:46,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:39:46,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:39:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:39:46,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:39:46,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874533030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:46,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:39:46,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:39:46,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422539200] [2024-11-24 00:39:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:46,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:39:46,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:46,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:39:46,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:39:46,804 INFO L87 Difference]: Start difference. First operand has 186 states, 145 states have (on average 1.5448275862068965) internal successors, (224), 147 states have internal predecessors, (224), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 00:39:46,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:39:46,874 INFO L93 Difference]: Finished difference Result 355 states and 571 transitions. [2024-11-24 00:39:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:39:46,876 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-24 00:39:46,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:39:46,886 INFO L225 Difference]: With dead ends: 355 [2024-11-24 00:39:46,886 INFO L226 Difference]: Without dead ends: 180 [2024-11-24 00:39:46,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:39:46,895 INFO L435 NwaCegarLoop]: 282 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, 282 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 [2024-11-24 00:39:46,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:39:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-24 00:39:46,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-24 00:39:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 140 states have (on average 1.5357142857142858) internal successors, (215), 141 states have internal predecessors, (215), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-24 00:39:46,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 277 transitions. [2024-11-24 00:39:46,963 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 277 transitions. Word has length 72 [2024-11-24 00:39:46,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:39:46,963 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 277 transitions. [2024-11-24 00:39:46,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 00:39:46,964 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 277 transitions. [2024-11-24 00:39:46,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 00:39:46,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:39:46,969 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:46,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:39:47,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:39:47,173 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:39:47,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:47,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1237404048, now seen corresponding path program 1 times [2024-11-24 00:39:47,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:47,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166547929] [2024-11-24 00:39:47,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:47,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:39:47,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:47,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166547929] [2024-11-24 00:39:47,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166547929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:39:47,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519934372] [2024-11-24 00:39:47,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:47,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:47,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:47,804 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:39:47,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:39:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:48,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:39:48,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:39:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:39:48,221 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:39:48,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519934372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:48,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:39:48,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 00:39:48,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628846199] [2024-11-24 00:39:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:48,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:39:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:48,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:39:48,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:39:48,227 INFO L87 Difference]: Start difference. First operand 180 states and 277 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-24 00:39:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:39:48,582 INFO L93 Difference]: Finished difference Result 397 states and 601 transitions. [2024-11-24 00:39:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:39:48,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 72 [2024-11-24 00:39:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:39:48,591 INFO L225 Difference]: With dead ends: 397 [2024-11-24 00:39:48,591 INFO L226 Difference]: Without dead ends: 234 [2024-11-24 00:39:48,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:39:48,598 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 407 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:39:48,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 717 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:39:48,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-24 00:39:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2024-11-24 00:39:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 183 states have (on average 1.5136612021857923) internal successors, (277), 184 states have internal predecessors, (277), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 00:39:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 347 transitions. [2024-11-24 00:39:48,698 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 347 transitions. Word has length 72 [2024-11-24 00:39:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:39:48,699 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 347 transitions. [2024-11-24 00:39:48,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-24 00:39:48,700 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 347 transitions. [2024-11-24 00:39:48,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 00:39:48,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:39:48,706 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:48,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:39:48,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-24 00:39:48,907 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:39:48,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash 718149987, now seen corresponding path program 1 times [2024-11-24 00:39:48,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:48,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647580623] [2024-11-24 00:39:48,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:39:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647580623] [2024-11-24 00:39:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647580623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:39:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749634496] [2024-11-24 00:39:49,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:49,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:49,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:49,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:39:49,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:39:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:49,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:39:49,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:39:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:39:49,741 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:39:49,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749634496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:49,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:39:49,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 00:39:49,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693461318] [2024-11-24 00:39:49,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:49,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:39:49,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:49,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:39:49,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:39:49,745 INFO L87 Difference]: Start difference. First operand 230 states and 347 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-24 00:39:50,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:39:50,041 INFO L93 Difference]: Finished difference Result 398 states and 601 transitions. [2024-11-24 00:39:50,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:39:50,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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 73 [2024-11-24 00:39:50,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:39:50,047 INFO L225 Difference]: With dead ends: 398 [2024-11-24 00:39:50,049 INFO L226 Difference]: Without dead ends: 235 [2024-11-24 00:39:50,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:39:50,052 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 407 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:39:50,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 717 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:39:50,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-24 00:39:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2024-11-24 00:39:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 185 states have (on average 1.508108108108108) internal successors, (279), 186 states have internal predecessors, (279), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 00:39:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 349 transitions. [2024-11-24 00:39:50,110 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 349 transitions. Word has length 73 [2024-11-24 00:39:50,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:39:50,113 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 349 transitions. [2024-11-24 00:39:50,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-24 00:39:50,113 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 349 transitions. [2024-11-24 00:39:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 00:39:50,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:39:50,117 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:50,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:39:50,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:50,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:39:50,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:50,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1700783189, now seen corresponding path program 1 times [2024-11-24 00:39:50,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:50,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430748915] [2024-11-24 00:39:50,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:50,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:39:50,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430748915] [2024-11-24 00:39:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430748915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:39:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798091447] [2024-11-24 00:39:50,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:50,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:50,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:50,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:39:50,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:39:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:50,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:39:50,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:39:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:39:51,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:39:51,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798091447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:51,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:39:51,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 00:39:51,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124968060] [2024-11-24 00:39:51,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:51,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:39:51,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:51,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:39:51,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:39:51,014 INFO L87 Difference]: Start difference. First operand 232 states and 349 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 00:39:51,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:39:51,078 INFO L93 Difference]: Finished difference Result 232 states and 349 transitions. [2024-11-24 00:39:51,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:39:51,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-11-24 00:39:51,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:39:51,086 INFO L225 Difference]: With dead ends: 232 [2024-11-24 00:39:51,086 INFO L226 Difference]: Without dead ends: 231 [2024-11-24 00:39:51,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:39:51,087 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 108 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 649 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 [2024-11-24 00:39:51,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 649 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:39:51,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-24 00:39:51,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-11-24 00:39:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 185 states have (on average 1.5027027027027027) internal successors, (278), 185 states have internal predecessors, (278), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 00:39:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 348 transitions. [2024-11-24 00:39:51,114 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 348 transitions. Word has length 75 [2024-11-24 00:39:51,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:39:51,114 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 348 transitions. [2024-11-24 00:39:51,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 00:39:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 348 transitions. [2024-11-24 00:39:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 00:39:51,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:39:51,118 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:51,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:39:51,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:51,319 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:39:51,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1184671832, now seen corresponding path program 1 times [2024-11-24 00:39:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038921178] [2024-11-24 00:39:51,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:51,547 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:39:51,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:51,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038921178] [2024-11-24 00:39:51,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038921178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:39:51,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23517889] [2024-11-24 00:39:51,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:51,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:51,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:51,550 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:39:51,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:39:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:51,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:39:51,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:39:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:39:51,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:39:51,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23517889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:51,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:39:51,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 00:39:51,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315896570] [2024-11-24 00:39:51,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:51,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:39:51,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:51,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:39:51,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:39:51,902 INFO L87 Difference]: Start difference. First operand 231 states and 348 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 00:39:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:39:51,984 INFO L93 Difference]: Finished difference Result 312 states and 480 transitions. [2024-11-24 00:39:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:39:51,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2024-11-24 00:39:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:39:51,991 INFO L225 Difference]: With dead ends: 312 [2024-11-24 00:39:51,991 INFO L226 Difference]: Without dead ends: 311 [2024-11-24 00:39:51,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:39:51,993 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 101 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:39:51,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 811 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:39:51,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-24 00:39:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-24 00:39:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 242 states have (on average 1.5) internal successors, (363), 242 states have internal predecessors, (363), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 00:39:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 479 transitions. [2024-11-24 00:39:52,038 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 479 transitions. Word has length 76 [2024-11-24 00:39:52,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:39:52,040 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 479 transitions. [2024-11-24 00:39:52,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 00:39:52,040 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 479 transitions. [2024-11-24 00:39:52,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 00:39:52,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:39:52,047 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:52,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:39:52,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:52,252 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:39:52,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2015138377, now seen corresponding path program 1 times [2024-11-24 00:39:52,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:52,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520156339] [2024-11-24 00:39:52,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:52,568 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-24 00:39:52,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:52,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520156339] [2024-11-24 00:39:52,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520156339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:39:52,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880189714] [2024-11-24 00:39:52,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:52,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:52,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:52,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:39:52,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:39:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:52,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:39:52,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:39:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-24 00:39:53,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:39:53,358 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-24 00:39:53,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880189714] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:39:53,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:39:53,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-11-24 00:39:53,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178789811] [2024-11-24 00:39:53,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:39:53,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:39:53,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:53,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:39:53,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:39:53,361 INFO L87 Difference]: Start difference. First operand 311 states and 479 transitions. Second operand has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-11-24 00:39:53,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:39:53,825 INFO L93 Difference]: Finished difference Result 724 states and 1124 transitions. [2024-11-24 00:39:53,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:39:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) Word has length 139 [2024-11-24 00:39:53,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:39:53,827 INFO L225 Difference]: With dead ends: 724 [2024-11-24 00:39:53,827 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:39:53,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:39:53,830 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 967 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:39:53,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1953 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:39:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:39:53,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:39:53,831 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) [2024-11-24 00:39:53,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:39:53,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2024-11-24 00:39:53,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:39:53,832 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:39:53,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-11-24 00:39:53,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:39:53,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:39:53,835 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 00:39:53,836 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 00:39:53,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:39:54,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:39:54,044 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 00:39:54,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:39:55,056 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:39:55,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:39:55 BoogieIcfgContainer [2024-11-24 00:39:55,079 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:39:55,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:39:55,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:39:55,082 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:39:55,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:39:45" (3/4) ... [2024-11-24 00:39:55,085 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:39:55,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-11-24 00:39:55,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2024-11-24 00:39:55,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-11-24 00:39:55,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-11-24 00:39:55,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-11-24 00:39:55,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 00:39:55,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-11-24 00:39:55,107 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-24 00:39:55,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 00:39:55,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:39:55,110 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:39:55,304 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:39:55,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:39:55,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:39:55,308 INFO L158 Benchmark]: Toolchain (without parser) took 11510.89ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 105.8MB in the beginning and 242.3MB in the end (delta: -136.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2024-11-24 00:39:55,308 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:39:55,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.10ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 87.5MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:39:55,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.39ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 84.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:39:55,310 INFO L158 Benchmark]: Boogie Preprocessor took 128.52ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 79.9MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:39:55,311 INFO L158 Benchmark]: RCFGBuilder took 1217.92ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 39.3MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-24 00:39:55,312 INFO L158 Benchmark]: TraceAbstraction took 9332.15ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 38.6MB in the beginning and 255.3MB in the end (delta: -216.7MB). Peak memory consumption was 116.4MB. Max. memory is 16.1GB. [2024-11-24 00:39:55,312 INFO L158 Benchmark]: Witness Printer took 224.59ms. Allocated memory is still 327.2MB. Free memory was 255.3MB in the beginning and 242.3MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:39:55,315 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.10ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 87.5MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.39ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 84.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 128.52ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 79.9MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1217.92ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 39.3MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9332.15ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 38.6MB in the beginning and 255.3MB in the end (delta: -216.7MB). Peak memory consumption was 116.4MB. Max. memory is 16.1GB. * Witness Printer took 224.59ms. Allocated memory is still 327.2MB. Free memory was 255.3MB in the beginning and 242.3MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. 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: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 606]: 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 8 procedures, 186 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2092 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1990 mSDsluCounter, 5129 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3551 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 1578 mSDtfsCounter, 345 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 675 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1014 NumberOfCodeBlocks, 1014 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1140 ConstructedInterpolants, 0 QuantifiedInterpolants, 1854 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2960 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 251/341 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 2 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((0 <= i2) && (i2 <= 2147483646)) && (((short) nomsg + 1) <= 0)) RESULT: Ultimate proved your program to be correct! [2024-11-24 00:39:55,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31c06000-e410-4bd2-bda3-e0378da8b1c1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE