./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/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_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/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 64bit --witnessprinter.graph.data.programhash b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:04:34,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:04:34,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 00:04:34,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:04:34,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:04:34,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:04:34,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:04:34,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:04:34,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:04:34,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:04:34,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:04:34,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:04:34,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:04:34,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:04:34,239 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:04:34,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:04:34,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:04:34,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:04:34,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:04:34,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:04:34,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:04:34,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:04:34,240 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:04:34,241 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:04:34,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:04:34,241 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:04:34,241 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:04:34,241 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:04:34,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:04:34,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:04:34,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:04:34,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:34,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:04:34,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:04:34,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:04:34,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:04:34,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:34,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:04:34,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:04:34,244 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:04:34,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:04:34,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:04:34,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:04:34,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:04:34,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:04:34,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:04:34,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:04:34,245 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_4c42a078-7076-43c5-8d64-a24e5b70d797/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b [2024-11-24 00:04:34,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:04:34,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:04:34,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:04:34,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:04:34,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:04:34,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-11-24 00:04:38,082 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/data/43c7ef652/5ff3695260734d158eff0edb4e3210de/FLAG631fde3dc [2024-11-24 00:04:38,386 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:04:38,389 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-11-24 00:04:38,399 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/data/43c7ef652/5ff3695260734d158eff0edb4e3210de/FLAG631fde3dc [2024-11-24 00:04:38,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/data/43c7ef652/5ff3695260734d158eff0edb4e3210de [2024-11-24 00:04:38,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:04:38,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:04:38,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:04:38,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:04:38,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:04:38,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24913872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38, skipping insertion in model container [2024-11-24 00:04:38,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:04:38,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:04:38,686 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:04:38,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:04:38,717 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:04:38,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38 WrapperNode [2024-11-24 00:04:38,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:04:38,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:04:38,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:04:38,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:04:38,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,743 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2024-11-24 00:04:38,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:04:38,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:04:38,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:04:38,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:04:38,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,764 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-24 00:04:38,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,767 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:04:38,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:04:38,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:04:38,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:04:38,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (1/1) ... [2024-11-24 00:04:38,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:04:38,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:38,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:04:38,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:04:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2024-11-24 00:04:38,862 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2024-11-24 00:04:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2024-11-24 00:04:38,863 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2024-11-24 00:04:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:04:38,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:04:38,923 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:04:38,926 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:04:39,095 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-24 00:04:39,095 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:04:39,109 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:04:39,110 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:04:39,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:04:39 BoogieIcfgContainer [2024-11-24 00:04:39,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:04:39,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:04:39,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:04:39,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:04:39,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:04:38" (1/3) ... [2024-11-24 00:04:39,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e32a788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:04:39, skipping insertion in model container [2024-11-24 00:04:39,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:04:38" (2/3) ... [2024-11-24 00:04:39,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e32a788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:04:39, skipping insertion in model container [2024-11-24 00:04:39,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:04:39" (3/3) ... [2024-11-24 00:04:39,122 INFO L128 eAbstractionObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-11-24 00:04:39,143 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:04:39,145 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c that has 3 procedures, 36 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-24 00:04:39,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:04:39,251 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;@610b70cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:04:39,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-24 00:04:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.52) internal successors, (38), 29 states have internal predecessors, (38), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:04:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 00:04:39,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:39,266 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:39,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:39,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:39,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1178430607, now seen corresponding path program 1 times [2024-11-24 00:04:39,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:39,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042494874] [2024-11-24 00:04:39,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:39,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:04:39,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:39,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042494874] [2024-11-24 00:04:39,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042494874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:39,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:39,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:39,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077577921] [2024-11-24 00:04:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:39,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:04:39,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:39,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:04:39,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:39,596 INFO L87 Difference]: Start difference. First operand has 36 states, 25 states have (on average 1.52) internal successors, (38), 29 states have internal predecessors, (38), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:04:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:39,678 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-11-24 00:04:39,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:04:39,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-24 00:04:39,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:39,686 INFO L225 Difference]: With dead ends: 57 [2024-11-24 00:04:39,687 INFO L226 Difference]: Without dead ends: 30 [2024-11-24 00:04:39,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:39,693 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:39,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 109 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:39,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-24 00:04:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-24 00:04:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 24 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:04:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-11-24 00:04:39,739 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 11 [2024-11-24 00:04:39,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:39,741 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-11-24 00:04:39,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:04:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-24 00:04:39,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 00:04:39,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:39,745 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:39,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:04:39,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:39,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:39,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2123356909, now seen corresponding path program 1 times [2024-11-24 00:04:39,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:39,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506402118] [2024-11-24 00:04:39,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:39,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:04:39,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:39,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506402118] [2024-11-24 00:04:39,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506402118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:39,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:39,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:39,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659163769] [2024-11-24 00:04:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:39,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:04:39,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:39,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:04:39,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:39,831 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:04:39,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:39,869 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2024-11-24 00:04:39,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:04:39,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-24 00:04:39,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:39,871 INFO L225 Difference]: With dead ends: 31 [2024-11-24 00:04:39,871 INFO L226 Difference]: Without dead ends: 30 [2024-11-24 00:04:39,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:39,874 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:39,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 93 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:39,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-24 00:04:39,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-24 00:04:39,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 23 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:04:39,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-11-24 00:04:39,886 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 12 [2024-11-24 00:04:39,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:39,886 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-11-24 00:04:39,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:04:39,887 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-24 00:04:39,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-24 00:04:39,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:39,888 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:39,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:04:39,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:39,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:39,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1553719471, now seen corresponding path program 1 times [2024-11-24 00:04:39,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:39,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654691820] [2024-11-24 00:04:39,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:39,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:04:40,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:40,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654691820] [2024-11-24 00:04:40,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654691820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:40,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:40,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:40,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893157750] [2024-11-24 00:04:40,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:40,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:04:40,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:40,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:04:40,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:40,015 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:04:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:40,057 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2024-11-24 00:04:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:04:40,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-24 00:04:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:40,059 INFO L225 Difference]: With dead ends: 29 [2024-11-24 00:04:40,059 INFO L226 Difference]: Without dead ends: 28 [2024-11-24 00:04:40,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:40,060 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 15 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:40,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 72 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-24 00:04:40,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-24 00:04:40,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:04:40,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2024-11-24 00:04:40,076 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 15 [2024-11-24 00:04:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:40,077 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2024-11-24 00:04:40,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:04:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2024-11-24 00:04:40,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-24 00:04:40,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:40,079 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:40,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:04:40,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:40,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash -920663247, now seen corresponding path program 1 times [2024-11-24 00:04:40,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930088078] [2024-11-24 00:04:40,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:40,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:04:40,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:40,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930088078] [2024-11-24 00:04:40,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930088078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:40,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:40,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:40,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049047301] [2024-11-24 00:04:40,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:40,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:04:40,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:40,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:04:40,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:40,194 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:04:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:40,241 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2024-11-24 00:04:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:04:40,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-24 00:04:40,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:40,242 INFO L225 Difference]: With dead ends: 37 [2024-11-24 00:04:40,243 INFO L226 Difference]: Without dead ends: 36 [2024-11-24 00:04:40,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:40,244 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:40,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 78 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:40,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-24 00:04:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-24 00:04:40,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:04:40,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-11-24 00:04:40,253 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 16 [2024-11-24 00:04:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:40,253 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-24 00:04:40,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:04:40,253 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2024-11-24 00:04:40,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-24 00:04:40,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:40,255 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:40,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:04:40,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:40,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:40,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1693175028, now seen corresponding path program 1 times [2024-11-24 00:04:40,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:40,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961368505] [2024-11-24 00:04:40,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:40,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:04:40,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:40,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961368505] [2024-11-24 00:04:40,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961368505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:40,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142750867] [2024-11-24 00:04:40,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:40,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:40,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:40,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:40,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:04:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:40,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:04:40,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:04:40,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:04:40,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142750867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:40,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:04:40,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-24 00:04:40,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928775024] [2024-11-24 00:04:40,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:40,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:04:40,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:40,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:04:40,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:04:40,892 INFO L87 Difference]: Start difference. First operand 36 states and 48 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-24 00:04:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:41,037 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2024-11-24 00:04:41,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:04:41,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 30 [2024-11-24 00:04:41,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:41,039 INFO L225 Difference]: With dead ends: 61 [2024-11-24 00:04:41,039 INFO L226 Difference]: Without dead ends: 60 [2024-11-24 00:04:41,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:04:41,043 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 32 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:41,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 126 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:41,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-24 00:04:41,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-24 00:04:41,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 46 states have internal predecessors, (57), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 00:04:41,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2024-11-24 00:04:41,054 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 30 [2024-11-24 00:04:41,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:41,054 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2024-11-24 00:04:41,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-24 00:04:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2024-11-24 00:04:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 00:04:41,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:41,057 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2024-11-24 00:04:41,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:04:41,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:41,262 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:41,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:41,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1144391453, now seen corresponding path program 2 times [2024-11-24 00:04:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:41,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665876776] [2024-11-24 00:04:41,263 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:41,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:41,314 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:41,314 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 00:04:41,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:41,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665876776] [2024-11-24 00:04:41,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665876776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:41,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227038874] [2024-11-24 00:04:41,836 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:41,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:41,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:41,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:41,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:04:41,926 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:41,926 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:41,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:04:41,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 00:04:42,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 00:04:42,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227038874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:42,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:04:42,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-11-24 00:04:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795746395] [2024-11-24 00:04:42,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:42,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 00:04:42,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:42,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 00:04:42,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:04:42,441 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 states have internal predecessors, (67), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-24 00:04:42,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:42,680 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-11-24 00:04:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:04:42,681 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 states have internal predecessors, (67), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 72 [2024-11-24 00:04:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:42,683 INFO L225 Difference]: With dead ends: 109 [2024-11-24 00:04:42,683 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:04:42,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:04:42,688 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 62 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:42,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 150 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:04:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:04:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-24 00:04:42,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 81 states have (on average 1.2222222222222223) internal successors, (99), 82 states have internal predecessors, (99), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 00:04:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2024-11-24 00:04:42,719 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 72 [2024-11-24 00:04:42,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:42,722 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2024-11-24 00:04:42,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 states have internal predecessors, (67), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-24 00:04:42,723 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2024-11-24 00:04:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-24 00:04:42,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:42,728 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2024-11-24 00:04:42,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:04:42,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:42,929 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:42,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:42,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1523953793, now seen corresponding path program 3 times [2024-11-24 00:04:42,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:42,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466836105] [2024-11-24 00:04:42,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:04:42,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:42,998 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-24 00:04:42,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-24 00:04:44,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:44,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466836105] [2024-11-24 00:04:44,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466836105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:44,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404108272] [2024-11-24 00:04:44,478 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:04:44,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:44,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:44,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:44,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:04:44,635 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-24 00:04:44,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:44,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:04:44,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:44,916 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-24 00:04:44,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-24 00:04:45,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404108272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:45,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:04:45,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2024-11-24 00:04:45,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516972650] [2024-11-24 00:04:45,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:45,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-24 00:04:45,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:45,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-24 00:04:45,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:04:45,926 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand has 46 states, 45 states have (on average 3.088888888888889) internal successors, (139), 46 states have internal predecessors, (139), 22 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) [2024-11-24 00:04:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:46,327 INFO L93 Difference]: Finished difference Result 205 states and 291 transitions. [2024-11-24 00:04:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-24 00:04:46,328 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.088888888888889) internal successors, (139), 46 states have internal predecessors, (139), 22 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) Word has length 156 [2024-11-24 00:04:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:46,330 INFO L225 Difference]: With dead ends: 205 [2024-11-24 00:04:46,334 INFO L226 Difference]: Without dead ends: 204 [2024-11-24 00:04:46,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:04:46,336 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 83 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:46,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 216 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:04:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-24 00:04:46,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-24 00:04:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 153 states have (on average 1.196078431372549) internal successors, (183), 154 states have internal predecessors, (183), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:04:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 279 transitions. [2024-11-24 00:04:46,371 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 279 transitions. Word has length 156 [2024-11-24 00:04:46,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:46,372 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 279 transitions. [2024-11-24 00:04:46,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.088888888888889) internal successors, (139), 46 states have internal predecessors, (139), 22 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) [2024-11-24 00:04:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 279 transitions. [2024-11-24 00:04:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-24 00:04:46,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:46,379 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2024-11-24 00:04:46,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:46,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:46,584 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:04:46,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:46,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1358880445, now seen corresponding path program 4 times [2024-11-24 00:04:46,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:46,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169241717] [2024-11-24 00:04:46,585 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 00:04:46,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:46,651 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 00:04:46,652 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2068 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2024-11-24 00:04:50,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:50,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169241717] [2024-11-24 00:04:50,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169241717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:50,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897115009] [2024-11-24 00:04:50,590 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 00:04:50,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:50,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:50,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:50,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:04:50,778 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 00:04:50,779 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:50,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-24 00:04:50,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2024-11-24 00:04:51,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2024-11-24 00:04:54,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897115009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:54,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:04:54,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 47, 47] total 97 [2024-11-24 00:04:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369032730] [2024-11-24 00:04:54,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:54,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-24 00:04:54,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:54,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-24 00:04:54,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=7196, Unknown=0, NotChecked=0, Total=9506 [2024-11-24 00:04:54,507 INFO L87 Difference]: Start difference. First operand 204 states and 279 transitions. Second operand has 98 states, 97 states have (on average 2.9690721649484537) internal successors, (288), 97 states have internal predecessors, (288), 47 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 46 states have call predecessors, (93), 47 states have call successors, (93) [2024-11-24 00:05:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:00,406 INFO L93 Difference]: Finished difference Result 1010 states and 1627 transitions. [2024-11-24 00:05:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2024-11-24 00:05:00,407 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 2.9690721649484537) internal successors, (288), 97 states have internal predecessors, (288), 47 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 46 states have call predecessors, (93), 47 states have call successors, (93) Word has length 324 [2024-11-24 00:05:00,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:00,418 INFO L225 Difference]: With dead ends: 1010 [2024-11-24 00:05:00,418 INFO L226 Difference]: Without dead ends: 809 [2024-11-24 00:05:00,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9457 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=6868, Invalid=29422, Unknown=0, NotChecked=0, Total=36290 [2024-11-24 00:05:00,430 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 628 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:00,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 408 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 00:05:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-24 00:05:00,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 792. [2024-11-24 00:05:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 593 states have (on average 1.178752107925801) internal successors, (699), 597 states have internal predecessors, (699), 192 states have call successors, (192), 4 states have call predecessors, (192), 6 states have return successors, (336), 192 states have call predecessors, (336), 192 states have call successors, (336) [2024-11-24 00:05:00,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1227 transitions. [2024-11-24 00:05:00,592 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1227 transitions. Word has length 324 [2024-11-24 00:05:00,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:00,593 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1227 transitions. [2024-11-24 00:05:00,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 2.9690721649484537) internal successors, (288), 97 states have internal predecessors, (288), 47 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 46 states have call predecessors, (93), 47 states have call successors, (93) [2024-11-24 00:05:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1227 transitions. [2024-11-24 00:05:00,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2024-11-24 00:05:00,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:00,620 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2024-11-24 00:05:00,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:05:00,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:05:00,825 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:05:00,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:00,827 INFO L85 PathProgramCache]: Analyzing trace with hash 19253451, now seen corresponding path program 5 times [2024-11-24 00:05:00,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:00,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709896606] [2024-11-24 00:05:00,828 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 00:05:00,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:01,258 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-24 00:05:01,258 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:05:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2024-11-24 00:05:11,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:11,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709896606] [2024-11-24 00:05:11,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709896606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:11,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290534309] [2024-11-24 00:05:11,331 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 00:05:11,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:05:11,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:05:11,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:05:11,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:05:11,806 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-24 00:05:11,806 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:05:11,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-24 00:05:11,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2024-11-24 00:05:12,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:21,084 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2024-11-24 00:05:21,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290534309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:05:21,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:05:21,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2024-11-24 00:05:21,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973465262] [2024-11-24 00:05:21,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:05:21,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2024-11-24 00:05:21,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:21,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2024-11-24 00:05:21,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-11-24 00:05:21,101 INFO L87 Difference]: Start difference. First operand 792 states and 1227 transitions. Second operand has 190 states, 189 states have (on average 3.0211640211640214) internal successors, (571), 190 states have internal predecessors, (571), 94 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 94 states have call predecessors, (188), 94 states have call successors, (188) [2024-11-24 00:05:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:23,370 INFO L93 Difference]: Finished difference Result 1561 states and 2523 transitions. [2024-11-24 00:05:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-11-24 00:05:23,371 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.0211640211640214) internal successors, (571), 190 states have internal predecessors, (571), 94 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 94 states have call predecessors, (188), 94 states have call successors, (188) Word has length 660 [2024-11-24 00:05:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:23,383 INFO L225 Difference]: With dead ends: 1561 [2024-11-24 00:05:23,383 INFO L226 Difference]: Without dead ends: 1560 [2024-11-24 00:05:23,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-11-24 00:05:23,388 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 386 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:23,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 570 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:05:23,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2024-11-24 00:05:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1560. [2024-11-24 00:05:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1169 states have (on average 1.172797262617622) internal successors, (1371), 1173 states have internal predecessors, (1371), 384 states have call successors, (384), 4 states have call predecessors, (384), 6 states have return successors, (672), 384 states have call predecessors, (672), 384 states have call successors, (672) [2024-11-24 00:05:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2427 transitions. [2024-11-24 00:05:23,505 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2427 transitions. Word has length 660 [2024-11-24 00:05:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:23,507 INFO L471 AbstractCegarLoop]: Abstraction has 1560 states and 2427 transitions. [2024-11-24 00:05:23,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.0211640211640214) internal successors, (571), 190 states have internal predecessors, (571), 94 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 94 states have call predecessors, (188), 94 states have call successors, (188) [2024-11-24 00:05:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2427 transitions. [2024-11-24 00:05:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1333 [2024-11-24 00:05:23,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:23,570 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2024-11-24 00:05:23,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:05:23,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:05:23,771 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:05:23,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:23,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1799038939, now seen corresponding path program 6 times [2024-11-24 00:05:23,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:23,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453108977] [2024-11-24 00:05:23,772 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 00:05:23,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:24,488 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-24 00:05:24,489 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:06:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2024-11-24 00:06:08,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453108977] [2024-11-24 00:06:08,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453108977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:08,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606701473] [2024-11-24 00:06:08,374 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 00:06:08,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:08,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:08,378 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:08,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:06:09,278 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-24 00:06:09,278 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:06:09,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 3239 conjuncts, 191 conjuncts are in the unsatisfiable core [2024-11-24 00:06:09,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2024-11-24 00:06:10,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2024-11-24 00:06:44,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606701473] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:06:44,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:06:44,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 191, 191] total 383 [2024-11-24 00:06:44,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099844251] [2024-11-24 00:06:44,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:44,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-11-24 00:06:44,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:44,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-11-24 00:06:44,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36917, Invalid=110155, Unknown=0, NotChecked=0, Total=147072 [2024-11-24 00:06:44,857 INFO L87 Difference]: Start difference. First operand 1560 states and 2427 transitions. Second operand has 384 states, 383 states have (on average 3.0078328981723237) internal successors, (1152), 384 states have internal predecessors, (1152), 191 states have call successors, (381), 1 states have call predecessors, (381), 1 states have return successors, (381), 191 states have call predecessors, (381), 191 states have call successors, (381) [2024-11-24 00:07:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:08,608 INFO L93 Difference]: Finished difference Result 4771 states and 7547 transitions. [2024-11-24 00:07:08,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 452 states. [2024-11-24 00:07:08,610 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.0078328981723237) internal successors, (1152), 384 states have internal predecessors, (1152), 191 states have call successors, (381), 1 states have call predecessors, (381), 1 states have return successors, (381), 191 states have call predecessors, (381), 191 states have call successors, (381) Word has length 1332 [2024-11-24 00:07:08,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:08,634 INFO L225 Difference]: With dead ends: 4771 [2024-11-24 00:07:08,635 INFO L226 Difference]: Without dead ends: 3094 [2024-11-24 00:07:08,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2992 GetRequests, 2472 SyntacticMatches, 0 SemanticMatches, 520 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68089 ImplicationChecksByTransitivity, 56.4s TimeCoverageRelationStatistics Valid=63551, Invalid=208411, Unknown=0, NotChecked=0, Total=271962 [2024-11-24 00:07:08,659 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 874 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:08,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 663 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:07:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2024-11-24 00:07:08,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2024-11-24 00:07:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 2319 states have (on average 1.1095299698145753) internal successors, (2573), 2323 states have internal predecessors, (2573), 768 states have call successors, (768), 4 states have call predecessors, (768), 6 states have return successors, (1344), 768 states have call predecessors, (1344), 768 states have call successors, (1344) [2024-11-24 00:07:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4685 transitions. [2024-11-24 00:07:08,868 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4685 transitions. Word has length 1332 [2024-11-24 00:07:08,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:08,872 INFO L471 AbstractCegarLoop]: Abstraction has 3094 states and 4685 transitions. [2024-11-24 00:07:08,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.0078328981723237) internal successors, (1152), 384 states have internal predecessors, (1152), 191 states have call successors, (381), 1 states have call predecessors, (381), 1 states have return successors, (381), 191 states have call predecessors, (381), 191 states have call successors, (381) [2024-11-24 00:07:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4685 transitions. [2024-11-24 00:07:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2677 [2024-11-24 00:07:08,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:08,949 INFO L218 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 190, 190, 1, 1, 1, 1] [2024-11-24 00:07:08,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:07:09,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 00:07:09,151 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:07:09,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 370550267, now seen corresponding path program 7 times [2024-11-24 00:07:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:09,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762870403] [2024-11-24 00:07:09,154 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 00:07:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 253840 backedges. 0 proven. 144970 refuted. 0 times theorem prover too weak. 108870 trivial. 0 not checked. [2024-11-24 00:11:22,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:22,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762870403] [2024-11-24 00:11:22,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762870403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:22,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154562220] [2024-11-24 00:11:22,264 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 00:11:22,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:22,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:22,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:22,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:11:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:23,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 6503 conjuncts, 383 conjuncts are in the unsatisfiable core [2024-11-24 00:11:23,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 253840 backedges. 0 proven. 144970 refuted. 0 times theorem prover too weak. 108870 trivial. 0 not checked. [2024-11-24 00:11:25,934 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 253840 backedges. 0 proven. 144970 refuted. 0 times theorem prover too weak. 108870 trivial. 0 not checked. [2024-11-24 00:13:39,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154562220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:13:39,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:13:39,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 765 [2024-11-24 00:13:39,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466767883] [2024-11-24 00:13:39,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:39,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2024-11-24 00:13:39,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:39,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2024-11-24 00:13:39,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2024-11-24 00:13:39,821 INFO L87 Difference]: Start difference. First operand 3094 states and 4685 transitions. Second operand has 766 states, 765 states have (on average 3.0052287581699346) internal successors, (2299), 766 states have internal predecessors, (2299), 382 states have call successors, (764), 1 states have call predecessors, (764), 1 states have return successors, (764), 382 states have call predecessors, (764), 382 states have call successors, (764) [2024-11-24 00:15:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:09,170 INFO L93 Difference]: Finished difference Result 6167 states and 9869 transitions. [2024-11-24 00:15:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 766 states. [2024-11-24 00:15:09,173 INFO L78 Accepts]: Start accepts. Automaton has has 766 states, 765 states have (on average 3.0052287581699346) internal successors, (2299), 766 states have internal predecessors, (2299), 382 states have call successors, (764), 1 states have call predecessors, (764), 1 states have return successors, (764), 382 states have call predecessors, (764), 382 states have call successors, (764) Word has length 2676 [2024-11-24 00:15:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:09,212 INFO L225 Difference]: With dead ends: 6167 [2024-11-24 00:15:09,212 INFO L226 Difference]: Without dead ends: 6166 [2024-11-24 00:15:09,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5733 GetRequests, 4969 SyntacticMatches, 0 SemanticMatches, 764 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181261 ImplicationChecksByTransitivity, 181.6s TimeCoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2024-11-24 00:15:09,255 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 1777 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:09,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 1026 Invalid, 2741 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 00:15:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2024-11-24 00:15:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 6166. [2024-11-24 00:15:09,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6166 states, 4623 states have (on average 1.138005624053645) internal successors, (5261), 4627 states have internal predecessors, (5261), 1536 states have call successors, (1536), 4 states have call predecessors, (1536), 6 states have return successors, (2688), 1536 states have call predecessors, (2688), 1536 states have call successors, (2688) [2024-11-24 00:15:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6166 states to 6166 states and 9485 transitions. [2024-11-24 00:15:09,668 INFO L78 Accepts]: Start accepts. Automaton has 6166 states and 9485 transitions. Word has length 2676 [2024-11-24 00:15:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:09,675 INFO L471 AbstractCegarLoop]: Abstraction has 6166 states and 9485 transitions. [2024-11-24 00:15:09,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 766 states, 765 states have (on average 3.0052287581699346) internal successors, (2299), 766 states have internal predecessors, (2299), 382 states have call successors, (764), 1 states have call predecessors, (764), 1 states have return successors, (764), 382 states have call predecessors, (764), 382 states have call successors, (764) [2024-11-24 00:15:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 6166 states and 9485 transitions. [2024-11-24 00:15:09,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5365 [2024-11-24 00:15:09,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:09,944 INFO L218 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 383, 383, 383, 383, 383, 383, 383, 382, 382, 1, 1, 1, 1] [2024-11-24 00:15:09,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 00:15:10,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c42a078-7076-43c5-8d64-a24e5b70d797/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 00:15:10,145 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-24 00:15:10,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:10,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1030938053, now seen corresponding path program 8 times [2024-11-24 00:15:10,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:10,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683538065] [2024-11-24 00:15:10,149 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:15:10,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:14,130 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:15:14,131 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat