./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.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_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/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_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/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_1548a933-b439-40a6-ba42-e3bdb5437c3f/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 cdd691469d2e12c2dd1871c48be4dd2db0b9d27541ac5dee5ff25a04db0d98eb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:33:49,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:33:50,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 01:33:50,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:33:50,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:33:50,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:33:50,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:33:50,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:33:50,100 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:33:50,100 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:33:50,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:33:50,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:33:50,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:33:50,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:33:50,101 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:33:50,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:33:50,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:33:50,102 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:33:50,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:33:50,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:33:50,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:33:50,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:33:50,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:33:50,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:33:50,103 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 01:33:50,103 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:33:50,103 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:33:50,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:33:50,103 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:33:50,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:33:50,104 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:33:50,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:33:50,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:33:50,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:33:50,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:33:50,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:33:50,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:33:50,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:33:50,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:33:50,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:33:50,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:33:50,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:33:50,105 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:33:50,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:33:50,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:33:50,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:33:50,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:33:50,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:33:50,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:33:50,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:33:50,106 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_1548a933-b439-40a6-ba42-e3bdb5437c3f/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 -> cdd691469d2e12c2dd1871c48be4dd2db0b9d27541ac5dee5ff25a04db0d98eb [2024-11-24 01:33:50,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:33:50,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:33:50,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:33:50,413 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:33:50,413 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:33:50,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2024-11-24 01:33:53,401 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/data/ed094bd14/dda64cd8e6984c07847ce88db43fd80c/FLAGef137f036 [2024-11-24 01:33:53,688 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:33:53,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2024-11-24 01:33:53,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/data/ed094bd14/dda64cd8e6984c07847ce88db43fd80c/FLAGef137f036 [2024-11-24 01:33:53,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/data/ed094bd14/dda64cd8e6984c07847ce88db43fd80c [2024-11-24 01:33:53,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:33:53,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:33:53,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:33:53,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:33:53,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:33:53,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:33:53" (1/1) ... [2024-11-24 01:33:53,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b056f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:53, skipping insertion in model container [2024-11-24 01:33:53,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:33:53" (1/1) ... [2024-11-24 01:33:53,771 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:33:54,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:33:54,123 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:33:54,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:33:54,248 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:33:54,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54 WrapperNode [2024-11-24 01:33:54,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:33:54,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:33:54,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:33:54,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:33:54,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,320 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 517 [2024-11-24 01:33:54,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:33:54,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:33:54,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:33:54,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:33:54,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,373 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 01:33:54,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,385 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:33:54,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:33:54,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:33:54,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:33:54,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (1/1) ... [2024-11-24 01:33:54,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:33:54,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:54,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:33:54,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:33:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-11-24 01:33:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-11-24 01:33:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:33:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-11-24 01:33:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-11-24 01:33:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-24 01:33:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-24 01:33:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-11-24 01:33:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-11-24 01:33:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:33:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:33:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:33:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-11-24 01:33:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-11-24 01:33:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:33:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:33:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-11-24 01:33:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-11-24 01:33:54,640 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:33:54,642 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:33:55,513 INFO L? ?]: Removed 118 outVars from TransFormulas that were not future-live. [2024-11-24 01:33:55,513 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:33:55,536 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:33:55,537 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:33:55,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:33:55 BoogieIcfgContainer [2024-11-24 01:33:55,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:33:55,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:33:55,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:33:55,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:33:55,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:33:53" (1/3) ... [2024-11-24 01:33:55,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473fb4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:33:55, skipping insertion in model container [2024-11-24 01:33:55,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:33:54" (2/3) ... [2024-11-24 01:33:55,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473fb4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:33:55, skipping insertion in model container [2024-11-24 01:33:55,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:33:55" (3/3) ... [2024-11-24 01:33:55,549 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2024-11-24 01:33:55,570 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:33:55,573 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c that has 8 procedures, 186 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-24 01:33:55,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:33:55,677 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;@57e98f58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:33:55,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:33:55,684 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 01:33:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 01:33:55,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:55,703 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 01:33:55,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 01:33:55,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:55,711 INFO L85 PathProgramCache]: Analyzing trace with hash -480228656, now seen corresponding path program 1 times [2024-11-24 01:33:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:55,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224354788] [2024-11-24 01:33:55,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:55,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:56,103 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 01:33:56,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:56,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224354788] [2024-11-24 01:33:56,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224354788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:56,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480426310] [2024-11-24 01:33:56,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:56,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:56,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:56,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:33:56,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:33:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:56,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:33:56,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:33:56,357 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 01:33:56,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:33:56,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480426310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:33:56,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:56,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:33:56,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826461134] [2024-11-24 01:33:56,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:33:56,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:33:56,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:56,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:33:56,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:33:56,391 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 01:33:56,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:56,483 INFO L93 Difference]: Finished difference Result 355 states and 571 transitions. [2024-11-24 01:33:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:33:56,485 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 01:33:56,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:56,495 INFO L225 Difference]: With dead ends: 355 [2024-11-24 01:33:56,495 INFO L226 Difference]: Without dead ends: 180 [2024-11-24 01:33:56,500 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 01:33:56,503 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 01:33:56,504 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 01:33:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-24 01:33:56,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-24 01:33:56,566 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 01:33:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 277 transitions. [2024-11-24 01:33:56,583 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 277 transitions. Word has length 72 [2024-11-24 01:33:56,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:56,583 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 277 transitions. [2024-11-24 01:33:56,583 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 01:33:56,584 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 277 transitions. [2024-11-24 01:33:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 01:33:56,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:56,592 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 01:33:56,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:33:56,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:33:56,793 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 01:33:56,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1237404048, now seen corresponding path program 1 times [2024-11-24 01:33:56,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:56,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038008222] [2024-11-24 01:33:56,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:56,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:57,246 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 01:33:57,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:57,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038008222] [2024-11-24 01:33:57,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038008222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:57,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511908589] [2024-11-24 01:33:57,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:57,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:57,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:57,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:33:57,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:33:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:57,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:33:57,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:33:57,618 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 01:33:57,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:33:57,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511908589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:33:57,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:57,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 01:33:57,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739412591] [2024-11-24 01:33:57,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:33:57,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:33:57,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:57,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:33:57,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:33:57,623 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 01:33:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:57,925 INFO L93 Difference]: Finished difference Result 397 states and 601 transitions. [2024-11-24 01:33:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:33:57,926 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 01:33:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:57,931 INFO L225 Difference]: With dead ends: 397 [2024-11-24 01:33:57,931 INFO L226 Difference]: Without dead ends: 234 [2024-11-24 01:33:57,933 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 01:33:57,934 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 01:33:57,934 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 01:33:57,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-24 01:33:57,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2024-11-24 01:33:57,975 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 01:33:57,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 347 transitions. [2024-11-24 01:33:57,980 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 347 transitions. Word has length 72 [2024-11-24 01:33:57,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:57,981 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 347 transitions. [2024-11-24 01:33:57,981 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 01:33:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 347 transitions. [2024-11-24 01:33:57,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 01:33:57,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:57,988 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 01:33:57,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:33:58,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:58,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 01:33:58,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:58,189 INFO L85 PathProgramCache]: Analyzing trace with hash 718149987, now seen corresponding path program 1 times [2024-11-24 01:33:58,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:58,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899204624] [2024-11-24 01:33:58,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:58,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:58,479 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 01:33:58,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:58,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899204624] [2024-11-24 01:33:58,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899204624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:58,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464164220] [2024-11-24 01:33:58,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:58,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:58,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:58,483 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:33:58,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:33:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:58,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:33:58,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:33:58,791 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 01:33:58,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:33:58,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464164220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:33:58,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:58,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-24 01:33:58,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652842844] [2024-11-24 01:33:58,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:33:58,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:33:58,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:58,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:33:58,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:33:58,793 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 01:33:59,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:59,035 INFO L93 Difference]: Finished difference Result 398 states and 601 transitions. [2024-11-24 01:33:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:33:59,036 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 01:33:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:59,038 INFO L225 Difference]: With dead ends: 398 [2024-11-24 01:33:59,038 INFO L226 Difference]: Without dead ends: 235 [2024-11-24 01:33:59,041 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 01:33:59,042 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 407 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 01:33:59,042 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 01:33:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-24 01:33:59,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2024-11-24 01:33:59,078 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 01:33:59,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 349 transitions. [2024-11-24 01:33:59,082 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 349 transitions. Word has length 73 [2024-11-24 01:33:59,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:59,083 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 349 transitions. [2024-11-24 01:33:59,083 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 01:33:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 349 transitions. [2024-11-24 01:33:59,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 01:33:59,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:59,089 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 01:33:59,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:33:59,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:59,290 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 01:33:59,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:59,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1700783189, now seen corresponding path program 1 times [2024-11-24 01:33:59,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:59,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030209677] [2024-11-24 01:33:59,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:59,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:59,560 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 01:33:59,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030209677] [2024-11-24 01:33:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030209677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828117771] [2024-11-24 01:33:59,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:59,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:59,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:59,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:33:59,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:33:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:59,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:33:59,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:33:59,839 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 01:33:59,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:33:59,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828117771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:33:59,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:59,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:33:59,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586037858] [2024-11-24 01:33:59,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:33:59,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:33:59,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:59,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:33:59,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:33:59,842 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 01:33:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:59,887 INFO L93 Difference]: Finished difference Result 232 states and 349 transitions. [2024-11-24 01:33:59,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:33:59,890 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 01:33:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:59,892 INFO L225 Difference]: With dead ends: 232 [2024-11-24 01:33:59,892 INFO L226 Difference]: Without dead ends: 231 [2024-11-24 01:33:59,892 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 01:33:59,895 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 01:33:59,896 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 01:33:59,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-24 01:33:59,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-11-24 01:33:59,921 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 01:33:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 348 transitions. [2024-11-24 01:33:59,926 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 348 transitions. Word has length 75 [2024-11-24 01:33:59,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:59,927 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 348 transitions. [2024-11-24 01:33:59,928 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 01:33:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 348 transitions. [2024-11-24 01:33:59,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:33:59,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:59,931 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 01:33:59,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:34:00,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:00,132 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 01:34:00,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1184671832, now seen corresponding path program 1 times [2024-11-24 01:34:00,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:00,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326420283] [2024-11-24 01:34:00,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:00,373 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 01:34:00,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:00,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326420283] [2024-11-24 01:34:00,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326420283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:00,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042062738] [2024-11-24 01:34:00,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:00,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:00,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:00,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:00,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:34:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:00,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:34:00,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:00,674 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 01:34:00,674 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:34:00,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042062738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:00,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:00,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:34:00,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689717715] [2024-11-24 01:34:00,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:00,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:34:00,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:00,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:34:00,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:34:00,677 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 01:34:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:00,728 INFO L93 Difference]: Finished difference Result 312 states and 480 transitions. [2024-11-24 01:34:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:34:00,728 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 01:34:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:00,731 INFO L225 Difference]: With dead ends: 312 [2024-11-24 01:34:00,731 INFO L226 Difference]: Without dead ends: 311 [2024-11-24 01:34:00,731 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 01:34:00,732 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 01:34:00,733 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 01:34:00,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-24 01:34:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-24 01:34:00,756 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 01:34:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 479 transitions. [2024-11-24 01:34:00,760 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 479 transitions. Word has length 76 [2024-11-24 01:34:00,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:00,760 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 479 transitions. [2024-11-24 01:34:00,760 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 01:34:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 479 transitions. [2024-11-24 01:34:00,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 01:34:00,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:00,764 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 01:34:00,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:34:00,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:00,965 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 01:34:00,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:00,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2015138377, now seen corresponding path program 1 times [2024-11-24 01:34:00,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:00,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144211810] [2024-11-24 01:34:00,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:00,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:01,202 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 01:34:01,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:01,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144211810] [2024-11-24 01:34:01,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144211810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:01,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45306116] [2024-11-24 01:34:01,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:01,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:01,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:01,205 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:01,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:34:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:01,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:34:01,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:01,693 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 01:34:01,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:34:01,952 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 01:34:01,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45306116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:34:01,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:34:01,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-11-24 01:34:01,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815267180] [2024-11-24 01:34:01,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:34:01,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:34:01,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:01,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:34:01,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:34:01,955 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 01:34:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:02,338 INFO L93 Difference]: Finished difference Result 724 states and 1124 transitions. [2024-11-24 01:34:02,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:34:02,338 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 01:34:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:02,339 INFO L225 Difference]: With dead ends: 724 [2024-11-24 01:34:02,339 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:34:02,341 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 01:34:02,344 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 967 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 01:34:02,345 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 01:34:02,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:34:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:34:02,345 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 01:34:02,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:34:02,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2024-11-24 01:34:02,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:02,346 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:34:02,346 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 01:34:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:34:02,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:34:02,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 01:34:02,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 01:34:02,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 01:34:02,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-24 01:34:02,555 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 01:34:02,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:34:03,321 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:34:03,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:34:03 BoogieIcfgContainer [2024-11-24 01:34:03,339 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:34:03,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:34:03,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:34:03,340 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:34:03,341 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:33:55" (3/4) ... [2024-11-24 01:34:03,344 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:34:03,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-11-24 01:34:03,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2024-11-24 01:34:03,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-11-24 01:34:03,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-11-24 01:34:03,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-11-24 01:34:03,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 01:34:03,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-11-24 01:34:03,368 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-24 01:34:03,369 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 01:34:03,370 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 01:34:03,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:34:03,523 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:34:03,525 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:34:03,525 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:34:03,527 INFO L158 Benchmark]: Toolchain (without parser) took 9803.54ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 92.1MB in the beginning and 65.1MB in the end (delta: 27.1MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2024-11-24 01:34:03,527 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:34:03,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.28ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:34:03,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.82ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 70.4MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:34:03,529 INFO L158 Benchmark]: Boogie Preprocessor took 81.78ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 66.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:34:03,530 INFO L158 Benchmark]: RCFGBuilder took 1134.74ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 78.1MB in the end (delta: -11.8MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-11-24 01:34:03,531 INFO L158 Benchmark]: TraceAbstraction took 7798.12ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 77.6MB in the beginning and 74.8MB in the end (delta: 2.8MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2024-11-24 01:34:03,531 INFO L158 Benchmark]: Witness Printer took 185.49ms. Allocated memory is still 142.6MB. Free memory was 74.8MB in the beginning and 65.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:34:03,533 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.28ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.82ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 70.4MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.78ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 66.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1134.74ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 78.1MB in the end (delta: -11.8MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7798.12ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 77.6MB in the beginning and 74.8MB in the end (delta: 2.8MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Witness Printer took 185.49ms. Allocated memory is still 142.6MB. Free memory was 74.8MB in the beginning and 65.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. 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: 6.9s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2092 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1990 mSDsluCounter, 5129 SdHoareTripleChecker+Invalid, 0.6s 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, 0.3s 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.4s 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 01:34:03,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1548a933-b439-40a6-ba42-e3bdb5437c3f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE