./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/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_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1 --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-d790fec [2024-12-02 09:02:48,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:02:48,071 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 09:02:48,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:02:48,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:02:48,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:02:48,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:02:48,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:02:48,099 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:02:48,099 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:02:48,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:02:48,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:02:48,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:02:48,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:02:48,100 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:02:48,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:02:48,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:02:48,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:02:48,101 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:02:48,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:02:48,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:02:48,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:02:48,102 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:02:48,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:02:48,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 09:02:48,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 09:02:48,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:02:48,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:02:48,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:02:48,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:02:48,103 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_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 09:02:48,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:02:48,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:02:48,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:02:48,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:02:48,349 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:02:48,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-12-02 09:02:50,960 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/data/3222c5e8c/2736beb4e3ee4218b377fb22e1ad5a1e/FLAGa0b044853 [2024-12-02 09:02:51,169 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:02:51,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-12-02 09:02:51,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/data/3222c5e8c/2736beb4e3ee4218b377fb22e1ad5a1e/FLAGa0b044853 [2024-12-02 09:02:51,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/data/3222c5e8c/2736beb4e3ee4218b377fb22e1ad5a1e [2024-12-02 09:02:51,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:02:51,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:02:51,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:02:51,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:02:51,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:02:51,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d26c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51, skipping insertion in model container [2024-12-02 09:02:51,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:02:51,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:02:51,695 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:02:51,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:02:51,715 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:02:51,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51 WrapperNode [2024-12-02 09:02:51,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:02:51,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:02:51,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:02:51,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:02:51,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,736 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2024-12-02 09:02:51,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:02:51,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:02:51,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:02:51,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:02:51,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,744 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,748 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 09:02:51,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,750 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:02:51,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:02:51,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:02:51,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:02:51,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (1/1) ... [2024-12-02 09:02:51,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:02:51,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:51,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:51,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:02:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2024-12-02 09:02:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2024-12-02 09:02:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2024-12-02 09:02:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2024-12-02 09:02:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:02:51,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:02:51,844 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:02:51,846 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:02:51,959 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 09:02:51,959 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:02:51,969 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:02:51,970 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 09:02:51,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:02:51 BoogieIcfgContainer [2024-12-02 09:02:51,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:02:51,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:02:51,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:02:51,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:02:51,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:02:51" (1/3) ... [2024-12-02 09:02:51,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27205a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:02:51, skipping insertion in model container [2024-12-02 09:02:51,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:51" (2/3) ... [2024-12-02 09:02:51,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27205a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:02:51, skipping insertion in model container [2024-12-02 09:02:51,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:02:51" (3/3) ... [2024-12-02 09:02:51,980 INFO L128 eAbstractionObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2024-12-02 09:02:51,995 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:02:51,996 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. [2024-12-02 09:02:52,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:02:52,056 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;@32ddc979, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:02:52,056 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-02 09:02:52,059 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) [2024-12-02 09:02:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 09:02:52,065 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:52,066 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:52,066 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)] === [2024-12-02 09:02:52,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:52,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1178430607, now seen corresponding path program 1 times [2024-12-02 09:02:52,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:52,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005189750] [2024-12-02 09:02:52,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:52,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:52,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005189750] [2024-12-02 09:02:52,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005189750] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:52,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:52,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:02:52,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454198452] [2024-12-02 09:02:52,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:52,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:02:52,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:52,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:02:52,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:02:52,273 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) [2024-12-02 09:02:52,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:52,315 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-12-02 09:02:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:02:52,317 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 [2024-12-02 09:02:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:52,322 INFO L225 Difference]: With dead ends: 57 [2024-12-02 09:02:52,322 INFO L226 Difference]: Without dead ends: 30 [2024-12-02 09:02:52,324 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 [2024-12-02 09:02:52,326 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, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:52,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 109 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:02:52,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-12-02 09:02:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-12-02 09:02:52,356 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) [2024-12-02 09:02:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-12-02 09:02:52,361 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 11 [2024-12-02 09:02:52,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:52,362 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-12-02 09:02:52,362 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) [2024-12-02 09:02:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-12-02 09:02:52,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 09:02:52,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:52,364 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:52,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 09:02:52,364 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)] === [2024-12-02 09:02:52,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:52,365 INFO L85 PathProgramCache]: Analyzing trace with hash 2123356909, now seen corresponding path program 1 times [2024-12-02 09:02:52,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:52,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302257083] [2024-12-02 09:02:52,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:52,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:52,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:52,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302257083] [2024-12-02 09:02:52,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302257083] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:52,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:52,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:02:52,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312175300] [2024-12-02 09:02:52,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:52,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:02:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:52,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:02:52,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:02:52,422 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) [2024-12-02 09:02:52,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:52,444 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2024-12-02 09:02:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:02:52,445 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 [2024-12-02 09:02:52,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:52,445 INFO L225 Difference]: With dead ends: 31 [2024-12-02 09:02:52,445 INFO L226 Difference]: Without dead ends: 30 [2024-12-02 09:02:52,446 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 [2024-12-02 09:02:52,447 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 [2024-12-02 09:02:52,447 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] [2024-12-02 09:02:52,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-12-02 09:02:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-12-02 09:02:52,452 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) [2024-12-02 09:02:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-12-02 09:02:52,452 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 12 [2024-12-02 09:02:52,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:52,453 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-12-02 09:02:52,453 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) [2024-12-02 09:02:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-12-02 09:02:52,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 09:02:52,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:52,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:52,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 09:02:52,454 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)] === [2024-12-02 09:02:52,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1553719471, now seen corresponding path program 1 times [2024-12-02 09:02:52,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:52,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719533669] [2024-12-02 09:02:52,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:52,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:52,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:52,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719533669] [2024-12-02 09:02:52,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719533669] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:52,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:52,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:02:52,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044404858] [2024-12-02 09:02:52,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:52,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:02:52,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:52,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:02:52,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:02:52,511 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) [2024-12-02 09:02:52,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:52,536 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2024-12-02 09:02:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:02:52,537 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 [2024-12-02 09:02:52,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:52,538 INFO L225 Difference]: With dead ends: 29 [2024-12-02 09:02:52,538 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 09:02:52,538 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 [2024-12-02 09:02:52,539 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 [2024-12-02 09:02:52,539 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] [2024-12-02 09:02:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 09:02:52,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-12-02 09:02:52,543 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) [2024-12-02 09:02:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2024-12-02 09:02:52,544 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 15 [2024-12-02 09:02:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:52,544 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2024-12-02 09:02:52,544 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) [2024-12-02 09:02:52,544 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2024-12-02 09:02:52,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 09:02:52,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:52,545 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:52,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 09:02:52,545 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)] === [2024-12-02 09:02:52,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:52,546 INFO L85 PathProgramCache]: Analyzing trace with hash -920663247, now seen corresponding path program 1 times [2024-12-02 09:02:52,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:52,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524865797] [2024-12-02 09:02:52,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:52,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:52,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:52,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524865797] [2024-12-02 09:02:52,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524865797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:52,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:52,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:02:52,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395507766] [2024-12-02 09:02:52,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:52,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:02:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:52,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:02:52,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:02:52,598 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) [2024-12-02 09:02:52,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:52,630 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2024-12-02 09:02:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:02:52,630 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 [2024-12-02 09:02:52,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:52,631 INFO L225 Difference]: With dead ends: 37 [2024-12-02 09:02:52,631 INFO L226 Difference]: Without dead ends: 36 [2024-12-02 09:02:52,631 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 [2024-12-02 09:02:52,632 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 [2024-12-02 09:02:52,632 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] [2024-12-02 09:02:52,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-12-02 09:02:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-12-02 09:02:52,639 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) [2024-12-02 09:02:52,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-12-02 09:02:52,640 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 16 [2024-12-02 09:02:52,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:52,640 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-12-02 09:02:52,640 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) [2024-12-02 09:02:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2024-12-02 09:02:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 09:02:52,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:52,641 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:52,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:02:52,642 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)] === [2024-12-02 09:02:52,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1693175028, now seen corresponding path program 1 times [2024-12-02 09:02:52,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:52,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767582204] [2024-12-02 09:02:52,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:52,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:02:52,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:52,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767582204] [2024-12-02 09:02:52,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767582204] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:52,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420688016] [2024-12-02 09:02:52,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:52,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:52,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:52,746 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:52,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:02:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:52,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:02:52,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:02:52,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:52,961 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:02:52,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420688016] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:52,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:52,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 09:02:52,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820257718] [2024-12-02 09:02:52,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:52,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 09:02:52,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:52,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 09:02:52,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 09:02:52,963 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) [2024-12-02 09:02:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:53,036 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2024-12-02 09:02:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 09:02:53,036 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 [2024-12-02 09:02:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:53,037 INFO L225 Difference]: With dead ends: 61 [2024-12-02 09:02:53,037 INFO L226 Difference]: Without dead ends: 60 [2024-12-02 09:02:53,038 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 [2024-12-02 09:02:53,038 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 32 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-12-02 09:02:53,039 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] [2024-12-02 09:02:53,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-12-02 09:02:53,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-12-02 09:02:53,046 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) [2024-12-02 09:02:53,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2024-12-02 09:02:53,047 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 30 [2024-12-02 09:02:53,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:53,047 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2024-12-02 09:02:53,047 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) [2024-12-02 09:02:53,048 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2024-12-02 09:02:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 09:02:53,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:53,049 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2024-12-02 09:02:53,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 09:02:53,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:53,250 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)] === [2024-12-02 09:02:53,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:53,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1144391453, now seen corresponding path program 2 times [2024-12-02 09:02:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:53,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814717505] [2024-12-02 09:02:53,251 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:02:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:53,271 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:02:53,272 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 09:02:53,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:53,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814717505] [2024-12-02 09:02:53,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814717505] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:53,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780932477] [2024-12-02 09:02:53,503 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:02:53,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:53,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:53,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:53,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 09:02:53,560 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:02:53,560 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:53,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 09:02:53,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 09:02:53,662 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 09:02:53,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780932477] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:53,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:53,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-12-02 09:02:53,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670684867] [2024-12-02 09:02:53,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:53,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 09:02:53,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:53,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 09:02:53,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-12-02 09:02:53,906 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) [2024-12-02 09:02:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:54,051 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-12-02 09:02:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 09:02:54,051 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 [2024-12-02 09:02:54,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:54,053 INFO L225 Difference]: With dead ends: 109 [2024-12-02 09:02:54,053 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 09:02:54,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-12-02 09:02:54,054 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 62 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:54,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 150 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:02:54,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 09:02:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-12-02 09:02:54,065 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) [2024-12-02 09:02:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2024-12-02 09:02:54,067 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 72 [2024-12-02 09:02:54,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:54,067 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2024-12-02 09:02:54,067 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) [2024-12-02 09:02:54,067 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2024-12-02 09:02:54,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 09:02:54,069 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:54,070 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2024-12-02 09:02:54,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 09:02:54,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:54,270 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)] === [2024-12-02 09:02:54,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:54,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1523953793, now seen corresponding path program 3 times [2024-12-02 09:02:54,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:54,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067578783] [2024-12-02 09:02:54,271 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 09:02:54,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:54,306 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 09:02:54,306 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-12-02 09:02:55,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067578783] [2024-12-02 09:02:55,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067578783] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812987536] [2024-12-02 09:02:55,153 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 09:02:55,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:55,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:55,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:55,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 09:02:55,249 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 09:02:55,249 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:55,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 09:02:55,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-12-02 09:02:55,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:56,131 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-12-02 09:02:56,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812987536] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:56,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:56,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2024-12-02 09:02:56,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971028030] [2024-12-02 09:02:56,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:56,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-12-02 09:02:56,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:56,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-12-02 09:02:56,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 09:02:56,136 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) [2024-12-02 09:02:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:56,412 INFO L93 Difference]: Finished difference Result 205 states and 291 transitions. [2024-12-02 09:02:56,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-02 09:02:56,413 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 [2024-12-02 09:02:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:56,414 INFO L225 Difference]: With dead ends: 205 [2024-12-02 09:02:56,415 INFO L226 Difference]: Without dead ends: 204 [2024-12-02 09:02:56,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 09:02:56,416 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, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:56,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 216 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:02:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-12-02 09:02:56,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-12-02 09:02:56,436 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) [2024-12-02 09:02:56,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 279 transitions. [2024-12-02 09:02:56,439 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 279 transitions. Word has length 156 [2024-12-02 09:02:56,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:56,440 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 279 transitions. [2024-12-02 09:02:56,440 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) [2024-12-02 09:02:56,441 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 279 transitions. [2024-12-02 09:02:56,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-12-02 09:02:56,448 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:56,448 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2024-12-02 09:02:56,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 09:02:56,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:56,649 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)] === [2024-12-02 09:02:56,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1358880445, now seen corresponding path program 4 times [2024-12-02 09:02:56,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:56,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996774588] [2024-12-02 09:02:56,650 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 09:02:56,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:56,701 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 09:02:56,701 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:59,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2068 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2024-12-02 09:02:59,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:59,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996774588] [2024-12-02 09:02:59,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996774588] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:59,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530295331] [2024-12-02 09:02:59,295 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 09:02:59,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:59,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:59,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:59,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 09:02:59,420 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 09:02:59,420 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:59,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 09:02:59,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2024-12-02 09:02:59,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2024-12-02 09:03:01,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530295331] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:01,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:01,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 47, 47] total 97 [2024-12-02 09:03:01,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713963193] [2024-12-02 09:03:01,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:01,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-12-02 09:03:01,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:01,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-12-02 09:03:01,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=7196, Unknown=0, NotChecked=0, Total=9506 [2024-12-02 09:03:01,554 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) [2024-12-02 09:03:05,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:05,081 INFO L93 Difference]: Finished difference Result 1010 states and 1627 transitions. [2024-12-02 09:03:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2024-12-02 09:03:05,082 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 [2024-12-02 09:03:05,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:05,088 INFO L225 Difference]: With dead ends: 1010 [2024-12-02 09:03:05,088 INFO L226 Difference]: Without dead ends: 809 [2024-12-02 09:03:05,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9457 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=6868, Invalid=29422, Unknown=0, NotChecked=0, Total=36290 [2024-12-02 09:03:05,095 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 628 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:05,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 408 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 09:03:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-12-02 09:03:05,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 792. [2024-12-02 09:03:05,157 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) [2024-12-02 09:03:05,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1227 transitions. [2024-12-02 09:03:05,165 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1227 transitions. Word has length 324 [2024-12-02 09:03:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:05,166 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1227 transitions. [2024-12-02 09:03:05,166 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) [2024-12-02 09:03:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1227 transitions. [2024-12-02 09:03:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2024-12-02 09:03:05,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:05,186 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2024-12-02 09:03:05,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 09:03:05,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:05,387 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 09:03:05,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:05,387 INFO L85 PathProgramCache]: Analyzing trace with hash 19253451, now seen corresponding path program 5 times [2024-12-02 09:03:05,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:05,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709992181] [2024-12-02 09:03:05,387 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 09:03:05,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:05,613 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-02 09:03:05,614 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:03:12,482 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2024-12-02 09:03:12,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:12,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709992181] [2024-12-02 09:03:12,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709992181] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:12,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969317312] [2024-12-02 09:03:12,483 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 09:03:12,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:12,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:12,484 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:12,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 09:03:12,783 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-02 09:03:12,783 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:03:12,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-12-02 09:03:12,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2024-12-02 09:03:13,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2024-12-02 09:03:19,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969317312] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:19,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:19,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2024-12-02 09:03:19,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66102366] [2024-12-02 09:03:19,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:19,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2024-12-02 09:03:19,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:19,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2024-12-02 09:03:19,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-12-02 09:03:19,559 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) [2024-12-02 09:03:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:20,997 INFO L93 Difference]: Finished difference Result 1561 states and 2523 transitions. [2024-12-02 09:03:20,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-12-02 09:03:20,999 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 [2024-12-02 09:03:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:21,010 INFO L225 Difference]: With dead ends: 1561 [2024-12-02 09:03:21,010 INFO L226 Difference]: Without dead ends: 1560 [2024-12-02 09:03:21,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-12-02 09:03:21,015 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 386 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:21,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 570 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 09:03:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2024-12-02 09:03:21,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1560. [2024-12-02 09:03:21,102 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) [2024-12-02 09:03:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2427 transitions. [2024-12-02 09:03:21,113 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2427 transitions. Word has length 660 [2024-12-02 09:03:21,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:21,115 INFO L471 AbstractCegarLoop]: Abstraction has 1560 states and 2427 transitions. [2024-12-02 09:03:21,115 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) [2024-12-02 09:03:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2427 transitions. [2024-12-02 09:03:21,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1333 [2024-12-02 09:03:21,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:21,168 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2024-12-02 09:03:21,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 09:03:21,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:21,369 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)] === [2024-12-02 09:03:21,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1799038939, now seen corresponding path program 6 times [2024-12-02 09:03:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:21,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79871956] [2024-12-02 09:03:21,370 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 09:03:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:21,951 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-02 09:03:21,951 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:04:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2024-12-02 09:04:00,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:00,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79871956] [2024-12-02 09:04:00,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79871956] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:04:00,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122106479] [2024-12-02 09:04:00,065 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 09:04:00,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:04:00,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:04:00,066 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:04:00,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 09:04:00,830 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-02 09:04:00,830 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:04:00,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 3239 conjuncts, 191 conjuncts are in the unsatisfiable core [2024-12-02 09:04:00,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2024-12-02 09:04:01,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:04:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2024-12-02 09:04:24,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122106479] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:04:24,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:04:24,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 191, 191] total 383 [2024-12-02 09:04:24,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787359118] [2024-12-02 09:04:24,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:04:24,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-12-02 09:04:24,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:25,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-12-02 09:04:25,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36917, Invalid=110155, Unknown=0, NotChecked=0, Total=147072 [2024-12-02 09:04:25,010 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) [2024-12-02 09:04:41,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:41,032 INFO L93 Difference]: Finished difference Result 4771 states and 7547 transitions. [2024-12-02 09:04:41,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 452 states. [2024-12-02 09:04:41,033 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 [2024-12-02 09:04:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:41,045 INFO L225 Difference]: With dead ends: 4771 [2024-12-02 09:04:41,046 INFO L226 Difference]: Without dead ends: 3094 [2024-12-02 09:04:41,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2992 GetRequests, 2472 SyntacticMatches, 0 SemanticMatches, 520 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68089 ImplicationChecksByTransitivity, 39.2s TimeCoverageRelationStatistics Valid=63551, Invalid=208411, Unknown=0, NotChecked=0, Total=271962 [2024-12-02 09:04:41,066 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 874 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:41,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 663 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 09:04:41,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2024-12-02 09:04:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2024-12-02 09:04:41,219 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) [2024-12-02 09:04:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4685 transitions. [2024-12-02 09:04:41,236 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4685 transitions. Word has length 1332 [2024-12-02 09:04:41,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:41,238 INFO L471 AbstractCegarLoop]: Abstraction has 3094 states and 4685 transitions. [2024-12-02 09:04:41,240 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) [2024-12-02 09:04:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4685 transitions. [2024-12-02 09:04:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2677 [2024-12-02 09:04:41,298 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:41,299 INFO L218 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 190, 190, 1, 1, 1, 1] [2024-12-02 09:04:41,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 09:04:41,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:04:41,500 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)] === [2024-12-02 09:04:41,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:41,501 INFO L85 PathProgramCache]: Analyzing trace with hash 370550267, now seen corresponding path program 7 times [2024-12-02 09:04:41,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:41,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504798380] [2024-12-02 09:04:41,501 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 09:04:41,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 253840 backedges. 0 proven. 144970 refuted. 0 times theorem prover too weak. 108870 trivial. 0 not checked. [2024-12-02 09:08:19,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:08:19,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504798380] [2024-12-02 09:08:19,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504798380] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:08:19,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140953582] [2024-12-02 09:08:19,785 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 09:08:19,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:19,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:19,787 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:19,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 09:08:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:20,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 6503 conjuncts, 383 conjuncts are in the unsatisfiable core [2024-12-02 09:08:20,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 253840 backedges. 0 proven. 144970 refuted. 0 times theorem prover too weak. 108870 trivial. 0 not checked. [2024-12-02 09:08:21,971 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:09:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 253840 backedges. 0 proven. 144970 refuted. 0 times theorem prover too weak. 108870 trivial. 0 not checked. [2024-12-02 09:09:53,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140953582] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:09:53,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:09:53,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 765 [2024-12-02 09:09:53,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986687997] [2024-12-02 09:09:53,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:09:53,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2024-12-02 09:09:53,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:09:53,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2024-12-02 09:09:53,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2024-12-02 09:09:53,216 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) [2024-12-02 09:10:51,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:10:51,733 INFO L93 Difference]: Finished difference Result 6167 states and 9869 transitions. [2024-12-02 09:10:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 766 states. [2024-12-02 09:10:51,735 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 [2024-12-02 09:10:51,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:10:51,755 INFO L225 Difference]: With dead ends: 6167 [2024-12-02 09:10:51,755 INFO L226 Difference]: Without dead ends: 6166 [2024-12-02 09:10:51,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5733 GetRequests, 4969 SyntacticMatches, 0 SemanticMatches, 764 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181261 ImplicationChecksByTransitivity, 122.3s TimeCoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2024-12-02 09:10:51,792 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 1777 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:10:51,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 1026 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 09:10:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2024-12-02 09:10:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 6166. [2024-12-02 09:10:52,071 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) [2024-12-02 09:10:52,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6166 states to 6166 states and 9485 transitions. [2024-12-02 09:10:52,100 INFO L78 Accepts]: Start accepts. Automaton has 6166 states and 9485 transitions. Word has length 2676 [2024-12-02 09:10:52,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:10:52,104 INFO L471 AbstractCegarLoop]: Abstraction has 6166 states and 9485 transitions. [2024-12-02 09:10:52,106 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) [2024-12-02 09:10:52,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6166 states and 9485 transitions. [2024-12-02 09:10:52,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5365 [2024-12-02 09:10:52,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:10:52,396 INFO L218 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 383, 383, 383, 383, 383, 383, 383, 382, 382, 1, 1, 1, 1] [2024-12-02 09:10:52,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 09:10:52,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0242a91-bff0-468e-9676-f0beaf63dd6b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 09:10:52,597 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)] === [2024-12-02 09:10:52,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:10:52,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1030938053, now seen corresponding path program 8 times [2024-12-02 09:10:52,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:10:52,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270375029] [2024-12-02 09:10:52,599 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:10:52,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:10:54,807 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:10:54,808 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat