./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:14:41,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:14:41,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:14:41,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:14:41,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:14:41,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:14:41,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:14:41,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:14:41,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:14:41,570 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:14:41,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:14:41,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:14:41,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:14:41,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:14:41,571 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:14:41,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:14:41,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:14:41,571 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:14:41,571 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:14:41,571 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:14:41,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:14:41,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:14:41,574 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:14:41,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:14:41,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:14:41,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:14:41,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:14:41,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:14:41,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:14:41,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:14:41,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:14:41,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:14:41,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:14:41,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:14:41,575 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:14:41,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:14:41,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:14:41,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:14:41,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:14:41,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:14:41,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:14:41,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:14:41,576 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_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2024-11-28 03:14:41,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:14:41,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:14:41,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:14:41,904 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:14:41,904 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:14:41,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2024-11-28 03:14:44,897 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/data/0468ec2c5/3a88d7ffb1e94f6b87d4e96f81814173/FLAG1e38cdb29 [2024-11-28 03:14:45,351 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:14:45,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2024-11-28 03:14:45,380 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/data/0468ec2c5/3a88d7ffb1e94f6b87d4e96f81814173/FLAG1e38cdb29 [2024-11-28 03:14:45,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/data/0468ec2c5/3a88d7ffb1e94f6b87d4e96f81814173 [2024-11-28 03:14:45,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:14:45,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:14:45,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:14:45,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:14:45,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:14:45,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:45" (1/1) ... [2024-11-28 03:14:45,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5221e2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:45, skipping insertion in model container [2024-11-28 03:14:45,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:45" (1/1) ... [2024-11-28 03:14:45,489 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:14:46,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:14:46,100 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:14:46,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:14:46,247 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:14:46,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46 WrapperNode [2024-11-28 03:14:46,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:14:46,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:14:46,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:14:46,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:14:46,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,352 INFO L138 Inliner]: procedures = 176, calls = 221, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 948 [2024-11-28 03:14:46,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:14:46,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:14:46,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:14:46,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:14:46,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,477 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2024-11-28 03:14:46,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,530 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:14:46,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:14:46,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:14:46,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:14:46,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (1/1) ... [2024-11-28 03:14:46,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:14:46,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:46,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:14:46,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:14:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:14:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:14:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:14:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:14:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 03:14:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 03:14:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 03:14:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 03:14:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:14:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:14:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:14:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:14:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:14:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:14:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:14:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:14:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:14:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:14:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:14:46,967 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:14:46,969 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:14:48,601 INFO L? ?]: Removed 229 outVars from TransFormulas that were not future-live. [2024-11-28 03:14:48,602 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:14:48,633 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:14:48,633 INFO L312 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-28 03:14:48,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:48 BoogieIcfgContainer [2024-11-28 03:14:48,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:14:48,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:14:48,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:14:48,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:14:48,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:45" (1/3) ... [2024-11-28 03:14:48,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a17220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:48, skipping insertion in model container [2024-11-28 03:14:48,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:46" (2/3) ... [2024-11-28 03:14:48,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a17220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:48, skipping insertion in model container [2024-11-28 03:14:48,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:48" (3/3) ... [2024-11-28 03:14:48,652 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test1-2.i [2024-11-28 03:14:48,671 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:14:48,673 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test1-2.i that has 3 procedures, 265 locations, 1 initial locations, 25 loop locations, and 6 error locations. [2024-11-28 03:14:48,764 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:48,785 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;@79e8500a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:48,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 03:14:48,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 250 states have (on average 1.608) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:48,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 03:14:48,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:48,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:48,802 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:48,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:48,810 INFO L85 PathProgramCache]: Analyzing trace with hash 31339065, now seen corresponding path program 1 times [2024-11-28 03:14:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:48,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267182552] [2024-11-28 03:14:48,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:48,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:48,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:48,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:48,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267182552] [2024-11-28 03:14:48,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267182552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:48,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:48,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:48,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531449554] [2024-11-28 03:14:48,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:48,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:14:48,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:48,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:14:49,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:14:49,003 INFO L87 Difference]: Start difference. First operand has 261 states, 250 states have (on average 1.608) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:49,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:49,080 INFO L93 Difference]: Finished difference Result 519 states and 813 transitions. [2024-11-28 03:14:49,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:14:49,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 03:14:49,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:49,095 INFO L225 Difference]: With dead ends: 519 [2024-11-28 03:14:49,097 INFO L226 Difference]: Without dead ends: 219 [2024-11-28 03:14:49,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:14:49,108 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:49,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:14:49,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-28 03:14:49,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-11-28 03:14:49,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 209 states have (on average 1.4401913875598087) internal successors, (301), 214 states have internal predecessors, (301), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 307 transitions. [2024-11-28 03:14:49,195 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 307 transitions. Word has length 7 [2024-11-28 03:14:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:49,198 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 307 transitions. [2024-11-28 03:14:49,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 307 transitions. [2024-11-28 03:14:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 03:14:49,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:49,198 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:49,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:14:49,199 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:49,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:49,200 INFO L85 PathProgramCache]: Analyzing trace with hash -698643749, now seen corresponding path program 1 times [2024-11-28 03:14:49,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:49,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298436065] [2024-11-28 03:14:49,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:49,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:49,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:49,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298436065] [2024-11-28 03:14:49,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298436065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:49,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:49,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:14:49,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354334771] [2024-11-28 03:14:49,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:49,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:49,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:49,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:49,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:49,629 INFO L87 Difference]: Start difference. First operand 219 states and 307 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:49,729 INFO L93 Difference]: Finished difference Result 231 states and 323 transitions. [2024-11-28 03:14:49,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:49,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 03:14:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:49,733 INFO L225 Difference]: With dead ends: 231 [2024-11-28 03:14:49,733 INFO L226 Difference]: Without dead ends: 230 [2024-11-28 03:14:49,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:49,734 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 6 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:49,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 895 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:14:49,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-28 03:14:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-28 03:14:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 214 states have (on average 1.4345794392523366) internal successors, (307), 219 states have internal predecessors, (307), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 313 transitions. [2024-11-28 03:14:49,766 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 313 transitions. Word has length 7 [2024-11-28 03:14:49,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:49,767 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 313 transitions. [2024-11-28 03:14:49,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 313 transitions. [2024-11-28 03:14:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 03:14:49,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:49,767 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:49,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:14:49,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:49,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -673307458, now seen corresponding path program 1 times [2024-11-28 03:14:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:49,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831629863] [2024-11-28 03:14:49,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:49,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:49,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:49,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831629863] [2024-11-28 03:14:49,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831629863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:49,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:49,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:14:49,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747219002] [2024-11-28 03:14:49,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:49,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:49,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:49,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:49,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:49,815 INFO L87 Difference]: Start difference. First operand 224 states and 313 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:49,854 INFO L93 Difference]: Finished difference Result 427 states and 603 transitions. [2024-11-28 03:14:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:49,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 03:14:49,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:49,857 INFO L225 Difference]: With dead ends: 427 [2024-11-28 03:14:49,857 INFO L226 Difference]: Without dead ends: 420 [2024-11-28 03:14:49,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:49,859 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 281 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:49,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 605 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:14:49,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-28 03:14:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 224. [2024-11-28 03:14:49,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 214 states have (on average 1.4299065420560748) internal successors, (306), 219 states have internal predecessors, (306), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 312 transitions. [2024-11-28 03:14:49,882 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 312 transitions. Word has length 7 [2024-11-28 03:14:49,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:49,882 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 312 transitions. [2024-11-28 03:14:49,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:49,883 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 312 transitions. [2024-11-28 03:14:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 03:14:49,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:49,883 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:49,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:14:49,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:49,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:49,886 INFO L85 PathProgramCache]: Analyzing trace with hash -183119670, now seen corresponding path program 1 times [2024-11-28 03:14:49,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:49,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588951065] [2024-11-28 03:14:49,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:49,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:50,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:50,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:50,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588951065] [2024-11-28 03:14:50,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588951065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:50,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:50,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:14:50,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057863083] [2024-11-28 03:14:50,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:50,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:50,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:50,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:50,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:50,059 INFO L87 Difference]: Start difference. First operand 224 states and 312 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:50,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:50,095 INFO L93 Difference]: Finished difference Result 226 states and 314 transitions. [2024-11-28 03:14:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:50,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 03:14:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:50,099 INFO L225 Difference]: With dead ends: 226 [2024-11-28 03:14:50,099 INFO L226 Difference]: Without dead ends: 225 [2024-11-28 03:14:50,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:50,102 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 0 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:50,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:14:50,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-28 03:14:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2024-11-28 03:14:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 215 states have (on average 1.427906976744186) internal successors, (307), 220 states have internal predecessors, (307), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 313 transitions. [2024-11-28 03:14:50,125 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 313 transitions. Word has length 8 [2024-11-28 03:14:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:50,126 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 313 transitions. [2024-11-28 03:14:50,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 313 transitions. [2024-11-28 03:14:50,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 03:14:50,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:50,132 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:50,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:14:50,133 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:50,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2015008578, now seen corresponding path program 1 times [2024-11-28 03:14:50,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:50,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911883743] [2024-11-28 03:14:50,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:50,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:50,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:50,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911883743] [2024-11-28 03:14:50,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911883743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:50,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:50,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:14:50,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208449359] [2024-11-28 03:14:50,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:50,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:50,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:50,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:50,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:50,627 INFO L87 Difference]: Start difference. First operand 225 states and 313 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:50,742 INFO L93 Difference]: Finished difference Result 445 states and 621 transitions. [2024-11-28 03:14:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:50,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-28 03:14:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:50,744 INFO L225 Difference]: With dead ends: 445 [2024-11-28 03:14:50,744 INFO L226 Difference]: Without dead ends: 228 [2024-11-28 03:14:50,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:50,748 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 106 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:50,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 743 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:50,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-28 03:14:50,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2024-11-28 03:14:50,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 215 states have (on average 1.3953488372093024) internal successors, (300), 220 states have internal predecessors, (300), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:50,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 306 transitions. [2024-11-28 03:14:50,765 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 306 transitions. Word has length 81 [2024-11-28 03:14:50,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:50,765 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 306 transitions. [2024-11-28 03:14:50,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:50,766 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 306 transitions. [2024-11-28 03:14:50,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 03:14:50,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:50,769 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:50,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:14:50,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:50,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:50,769 INFO L85 PathProgramCache]: Analyzing trace with hash -693752654, now seen corresponding path program 1 times [2024-11-28 03:14:50,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:50,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258166171] [2024-11-28 03:14:50,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:50,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:51,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:51,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258166171] [2024-11-28 03:14:51,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258166171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:51,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:51,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:14:51,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182219870] [2024-11-28 03:14:51,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:51,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:51,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:51,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:51,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:51,150 INFO L87 Difference]: Start difference. First operand 225 states and 306 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:51,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:51,246 INFO L93 Difference]: Finished difference Result 570 states and 792 transitions. [2024-11-28 03:14:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:51,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-28 03:14:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:51,252 INFO L225 Difference]: With dead ends: 570 [2024-11-28 03:14:51,252 INFO L226 Difference]: Without dead ends: 353 [2024-11-28 03:14:51,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:51,254 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 135 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:51,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 590 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:51,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-28 03:14:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2024-11-28 03:14:51,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 343 states have (on average 1.4198250728862973) internal successors, (487), 348 states have internal predecessors, (487), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 493 transitions. [2024-11-28 03:14:51,279 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 493 transitions. Word has length 81 [2024-11-28 03:14:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:51,281 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 493 transitions. [2024-11-28 03:14:51,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 493 transitions. [2024-11-28 03:14:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:14:51,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:51,282 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:51,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:14:51,283 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:51,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash 922141410, now seen corresponding path program 1 times [2024-11-28 03:14:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:51,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944796435] [2024-11-28 03:14:51,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:51,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:51,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:51,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944796435] [2024-11-28 03:14:51,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944796435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:51,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:51,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:14:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642306379] [2024-11-28 03:14:51,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:51,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:51,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:51,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:51,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:51,762 INFO L87 Difference]: Start difference. First operand 353 states and 493 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:14:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:51,817 INFO L93 Difference]: Finished difference Result 421 states and 581 transitions. [2024-11-28 03:14:51,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:51,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 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 96 [2024-11-28 03:14:51,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:51,821 INFO L225 Difference]: With dead ends: 421 [2024-11-28 03:14:51,822 INFO L226 Difference]: Without dead ends: 419 [2024-11-28 03:14:51,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:51,824 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 189 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 970 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 [2024-11-28 03:14:51,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 970 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:14:51,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-28 03:14:51,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2024-11-28 03:14:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 406 states have (on average 1.396551724137931) internal successors, (567), 411 states have internal predecessors, (567), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:14:51,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 579 transitions. [2024-11-28 03:14:51,848 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 579 transitions. Word has length 96 [2024-11-28 03:14:51,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:51,850 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 579 transitions. [2024-11-28 03:14:51,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:14:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 579 transitions. [2024-11-28 03:14:51,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 03:14:51,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:51,854 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:51,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:14:51,854 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:51,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:51,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1205414958, now seen corresponding path program 1 times [2024-11-28 03:14:51,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:51,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371083726] [2024-11-28 03:14:51,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:51,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:52,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:52,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371083726] [2024-11-28 03:14:52,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371083726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:52,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290721277] [2024-11-28 03:14:52,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:52,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:52,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:52,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:52,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:14:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:53,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:14:53,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:53,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:53,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290721277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:53,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:53,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 03:14:53,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268153732] [2024-11-28 03:14:53,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:53,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:14:53,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:53,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:14:53,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:14:53,936 INFO L87 Difference]: Start difference. First operand 419 states and 579 transitions. Second operand has 13 states, 12 states have (on average 16.25) internal successors, (195), 13 states have internal predecessors, (195), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:14:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:54,156 INFO L93 Difference]: Finished difference Result 849 states and 1183 transitions. [2024-11-28 03:14:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:14:54,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.25) internal successors, (195), 13 states have internal predecessors, (195), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 102 [2024-11-28 03:14:54,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:54,163 INFO L225 Difference]: With dead ends: 849 [2024-11-28 03:14:54,163 INFO L226 Difference]: Without dead ends: 848 [2024-11-28 03:14:54,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:14:54,165 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 824 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:54,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2512 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:54,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-28 03:14:54,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 828. [2024-11-28 03:14:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 809 states have (on average 1.400494437577256) internal successors, (1133), 814 states have internal predecessors, (1133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:14:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1157 transitions. [2024-11-28 03:14:54,228 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1157 transitions. Word has length 102 [2024-11-28 03:14:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:54,228 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1157 transitions. [2024-11-28 03:14:54,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.25) internal successors, (195), 13 states have internal predecessors, (195), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:14:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1157 transitions. [2024-11-28 03:14:54,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 03:14:54,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:54,230 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:54,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:14:54,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:54,431 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:54,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:54,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1230751249, now seen corresponding path program 1 times [2024-11-28 03:14:54,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:54,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108694533] [2024-11-28 03:14:54,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:54,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:54,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:54,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:54,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108694533] [2024-11-28 03:14:54,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108694533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:54,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235039676] [2024-11-28 03:14:54,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:54,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:54,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:54,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:54,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:14:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:55,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:14:55,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:55,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:55,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:55,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235039676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:55,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:55,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:14:55,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12112740] [2024-11-28 03:14:55,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:55,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:14:55,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:55,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:14:55,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:14:55,489 INFO L87 Difference]: Start difference. First operand 828 states and 1157 transitions. Second operand has 10 states, 10 states have (on average 26.8) internal successors, (268), 10 states have internal predecessors, (268), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:14:55,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:55,653 INFO L93 Difference]: Finished difference Result 837 states and 1164 transitions. [2024-11-28 03:14:55,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:14:55,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.8) internal successors, (268), 10 states have internal predecessors, (268), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 102 [2024-11-28 03:14:55,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:55,658 INFO L225 Difference]: With dead ends: 837 [2024-11-28 03:14:55,658 INFO L226 Difference]: Without dead ends: 829 [2024-11-28 03:14:55,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:14:55,664 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 1117 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:55,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 1791 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-28 03:14:55,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 828. [2024-11-28 03:14:55,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 809 states have (on average 1.396786155747837) internal successors, (1130), 814 states have internal predecessors, (1130), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:14:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1154 transitions. [2024-11-28 03:14:55,700 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1154 transitions. Word has length 102 [2024-11-28 03:14:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:55,701 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1154 transitions. [2024-11-28 03:14:55,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.8) internal successors, (268), 10 states have internal predecessors, (268), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:14:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1154 transitions. [2024-11-28 03:14:55,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 03:14:55,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:55,703 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:55,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:14:55,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:55,903 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:55,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:55,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1286841897, now seen corresponding path program 1 times [2024-11-28 03:14:55,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:55,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304287961] [2024-11-28 03:14:55,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:55,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:56,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:56,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304287961] [2024-11-28 03:14:56,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304287961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:56,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842909787] [2024-11-28 03:14:56,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:56,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:56,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:56,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:56,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:14:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:57,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:14:57,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:57,314 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:57,578 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:57,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842909787] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:57,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:57,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 03:14:57,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750824905] [2024-11-28 03:14:57,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:57,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:14:57,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:57,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:14:57,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:14:57,581 INFO L87 Difference]: Start difference. First operand 828 states and 1154 transitions. Second operand has 13 states, 12 states have (on average 16.5) internal successors, (198), 13 states have internal predecessors, (198), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:14:57,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:57,783 INFO L93 Difference]: Finished difference Result 838 states and 1163 transitions. [2024-11-28 03:14:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:14:57,783 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.5) internal successors, (198), 13 states have internal predecessors, (198), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2024-11-28 03:14:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:57,787 INFO L225 Difference]: With dead ends: 838 [2024-11-28 03:14:57,788 INFO L226 Difference]: Without dead ends: 837 [2024-11-28 03:14:57,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:14:57,789 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 661 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:57,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 2429 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:57,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-11-28 03:14:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 829. [2024-11-28 03:14:57,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 810 states have (on average 1.3938271604938273) internal successors, (1129), 815 states have internal predecessors, (1129), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:14:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1153 transitions. [2024-11-28 03:14:57,822 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1153 transitions. Word has length 103 [2024-11-28 03:14:57,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:57,822 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1153 transitions. [2024-11-28 03:14:57,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.5) internal successors, (198), 13 states have internal predecessors, (198), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:14:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1153 transitions. [2024-11-28 03:14:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 03:14:57,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:57,825 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:57,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:14:58,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:58,026 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:58,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:58,026 INFO L85 PathProgramCache]: Analyzing trace with hash 842951237, now seen corresponding path program 1 times [2024-11-28 03:14:58,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:58,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369236161] [2024-11-28 03:14:58,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:58,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:58,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369236161] [2024-11-28 03:14:58,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369236161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:58,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661273616] [2024-11-28 03:14:58,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:58,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:58,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:58,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:58,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:14:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:59,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:14:59,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:59,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:14:59,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661273616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:59,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:59,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 03:14:59,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303521609] [2024-11-28 03:14:59,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:59,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:14:59,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:59,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:14:59,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:14:59,537 INFO L87 Difference]: Start difference. First operand 829 states and 1153 transitions. Second operand has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:14:59,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:59,671 INFO L93 Difference]: Finished difference Result 829 states and 1153 transitions. [2024-11-28 03:14:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:14:59,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 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 176 [2024-11-28 03:14:59,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:59,678 INFO L225 Difference]: With dead ends: 829 [2024-11-28 03:14:59,679 INFO L226 Difference]: Without dead ends: 828 [2024-11-28 03:14:59,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:14:59,681 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 433 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:59,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1847 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:14:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-28 03:14:59,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2024-11-28 03:14:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 810 states have (on average 1.3901234567901235) internal successors, (1126), 814 states have internal predecessors, (1126), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:14:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1150 transitions. [2024-11-28 03:14:59,720 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1150 transitions. Word has length 176 [2024-11-28 03:14:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:59,720 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1150 transitions. [2024-11-28 03:14:59,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:14:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1150 transitions. [2024-11-28 03:14:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-28 03:14:59,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:59,725 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:59,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:14:59,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:59,930 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:14:59,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:59,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1275190135, now seen corresponding path program 1 times [2024-11-28 03:14:59,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:59,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47921908] [2024-11-28 03:14:59,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:59,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:15:00,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:00,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47921908] [2024-11-28 03:15:00,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47921908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:00,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:15:00,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623019173] [2024-11-28 03:15:00,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:00,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:15:00,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:00,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:15:00,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:15:00,460 INFO L87 Difference]: Start difference. First operand 828 states and 1150 transitions. Second operand has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:00,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:00,510 INFO L93 Difference]: Finished difference Result 828 states and 1150 transitions. [2024-11-28 03:15:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:15:00,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 4 states have internal predecessors, (173), 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 257 [2024-11-28 03:15:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:00,516 INFO L225 Difference]: With dead ends: 828 [2024-11-28 03:15:00,516 INFO L226 Difference]: Without dead ends: 827 [2024-11-28 03:15:00,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:15:00,518 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 198 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:00,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 600 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:15:00,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-11-28 03:15:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2024-11-28 03:15:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 810 states have (on average 1.3876543209876544) internal successors, (1124), 813 states have internal predecessors, (1124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:15:00,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1148 transitions. [2024-11-28 03:15:00,564 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1148 transitions. Word has length 257 [2024-11-28 03:15:00,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:00,565 INFO L471 AbstractCegarLoop]: Abstraction has 827 states and 1148 transitions. [2024-11-28 03:15:00,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:00,565 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1148 transitions. [2024-11-28 03:15:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-28 03:15:00,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:00,570 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:00,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:15:00,570 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:00,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2006395479, now seen corresponding path program 1 times [2024-11-28 03:15:00,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:00,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308624793] [2024-11-28 03:15:00,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:00,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:01,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:01,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308624793] [2024-11-28 03:15:01,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308624793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:01,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976716626] [2024-11-28 03:15:01,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:01,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:01,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:01,594 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:01,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:15:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:02,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:15:02,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:02,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:03,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976716626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:15:03,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:15:03,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 03:15:03,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391740097] [2024-11-28 03:15:03,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:15:03,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:15:03,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:03,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:15:03,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:15:03,267 INFO L87 Difference]: Start difference. First operand 827 states and 1148 transitions. Second operand has 18 states, 18 states have (on average 32.666666666666664) internal successors, (588), 18 states have internal predecessors, (588), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:15:03,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:03,573 INFO L93 Difference]: Finished difference Result 1439 states and 2003 transitions. [2024-11-28 03:15:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:15:03,574 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 32.666666666666664) internal successors, (588), 18 states have internal predecessors, (588), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 262 [2024-11-28 03:15:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:03,582 INFO L225 Difference]: With dead ends: 1439 [2024-11-28 03:15:03,582 INFO L226 Difference]: Without dead ends: 1432 [2024-11-28 03:15:03,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:15:03,584 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 2397 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:03,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2416 Valid, 2643 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:03,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-28 03:15:03,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1428. [2024-11-28 03:15:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1402 states have (on average 1.3908701854493581) internal successors, (1950), 1405 states have internal predecessors, (1950), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 03:15:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1992 transitions. [2024-11-28 03:15:03,663 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1992 transitions. Word has length 262 [2024-11-28 03:15:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:03,665 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1992 transitions. [2024-11-28 03:15:03,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 32.666666666666664) internal successors, (588), 18 states have internal predecessors, (588), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:15:03,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1992 transitions. [2024-11-28 03:15:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-28 03:15:03,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:03,673 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:03,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:15:03,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:15:03,874 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:03,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash -560896617, now seen corresponding path program 1 times [2024-11-28 03:15:03,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:03,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108845075] [2024-11-28 03:15:03,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:07,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:07,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108845075] [2024-11-28 03:15:07,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108845075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534110276] [2024-11-28 03:15:07,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:07,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:07,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:07,778 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:07,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:15:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:08,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:15:08,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:09,554 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:10,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534110276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:15:10,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:15:10,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2024-11-28 03:15:10,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691114824] [2024-11-28 03:15:10,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:15:10,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 03:15:10,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:10,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 03:15:10,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=498, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:15:10,371 INFO L87 Difference]: Start difference. First operand 1428 states and 1992 transitions. Second operand has 28 states, 27 states have (on average 25.333333333333332) internal successors, (684), 28 states have internal predecessors, (684), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:15:10,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:10,927 INFO L93 Difference]: Finished difference Result 2055 states and 2875 transitions. [2024-11-28 03:15:10,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:15:10,928 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 25.333333333333332) internal successors, (684), 28 states have internal predecessors, (684), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 342 [2024-11-28 03:15:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:10,937 INFO L225 Difference]: With dead ends: 2055 [2024-11-28 03:15:10,937 INFO L226 Difference]: Without dead ends: 2054 [2024-11-28 03:15:10,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=338, Invalid=718, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:15:10,939 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 3023 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 5379 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:10,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 5379 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2024-11-28 03:15:10,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 2038. [2024-11-28 03:15:11,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 2003 states have (on average 1.3909136295556666) internal successors, (2786), 2006 states have internal predecessors, (2786), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:15:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 2846 transitions. [2024-11-28 03:15:11,010 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 2846 transitions. Word has length 342 [2024-11-28 03:15:11,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:11,011 INFO L471 AbstractCegarLoop]: Abstraction has 2038 states and 2846 transitions. [2024-11-28 03:15:11,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 25.333333333333332) internal successors, (684), 28 states have internal predecessors, (684), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:15:11,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 2846 transitions. [2024-11-28 03:15:11,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-28 03:15:11,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:11,018 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:11,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:15:11,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:15:11,219 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:11,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:11,219 INFO L85 PathProgramCache]: Analyzing trace with hash -207925874, now seen corresponding path program 1 times [2024-11-28 03:15:11,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:11,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867653336] [2024-11-28 03:15:11,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:11,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:14,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:14,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867653336] [2024-11-28 03:15:14,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867653336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:14,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30427637] [2024-11-28 03:15:14,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:14,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:14,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:14,112 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:14,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:15:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:15,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:15:15,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:15,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:16,493 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:16,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30427637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:15:16,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:15:16,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2024-11-28 03:15:16,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561542198] [2024-11-28 03:15:16,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:15:16,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 03:15:16,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:16,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 03:15:16,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=498, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:15:16,497 INFO L87 Difference]: Start difference. First operand 2038 states and 2846 transitions. Second operand has 28 states, 27 states have (on average 25.444444444444443) internal successors, (687), 28 states have internal predecessors, (687), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:15:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:17,033 INFO L93 Difference]: Finished difference Result 2055 states and 2869 transitions. [2024-11-28 03:15:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:15:17,034 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 25.444444444444443) internal successors, (687), 28 states have internal predecessors, (687), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 343 [2024-11-28 03:15:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:17,044 INFO L225 Difference]: With dead ends: 2055 [2024-11-28 03:15:17,044 INFO L226 Difference]: Without dead ends: 2054 [2024-11-28 03:15:17,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=718, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:15:17,046 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 3571 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3594 SdHoareTripleChecker+Valid, 4407 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:17,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3594 Valid, 4407 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2024-11-28 03:15:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 2039. [2024-11-28 03:15:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 2004 states have (on average 1.3882235528942115) internal successors, (2782), 2007 states have internal predecessors, (2782), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:15:17,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2842 transitions. [2024-11-28 03:15:17,118 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2842 transitions. Word has length 343 [2024-11-28 03:15:17,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:17,118 INFO L471 AbstractCegarLoop]: Abstraction has 2039 states and 2842 transitions. [2024-11-28 03:15:17,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 25.444444444444443) internal successors, (687), 28 states have internal predecessors, (687), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:15:17,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2842 transitions. [2024-11-28 03:15:17,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2024-11-28 03:15:17,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:17,137 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:17,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:15:17,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:17,342 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:17,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash -585692445, now seen corresponding path program 2 times [2024-11-28 03:15:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:17,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838285120] [2024-11-28 03:15:17,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:15:17,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:17,866 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:15:17,866 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:15:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 0 proven. 1675 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:19,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:19,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838285120] [2024-11-28 03:15:19,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838285120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:19,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091467667] [2024-11-28 03:15:19,656 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:15:19,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:19,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:19,658 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:19,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:15:21,001 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:15:21,001 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:15:21,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:15:21,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 0 proven. 1675 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:21,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:22,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 0 proven. 1675 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:22,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091467667] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:15:22,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:15:22,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 03:15:22,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539449637] [2024-11-28 03:15:22,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:15:22,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:15:22,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:22,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:15:22,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:15:22,576 INFO L87 Difference]: Start difference. First operand 2039 states and 2842 transitions. Second operand has 23 states, 23 states have (on average 36.130434782608695) internal successors, (831), 23 states have internal predecessors, (831), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:15:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:22,879 INFO L93 Difference]: Finished difference Result 2046 states and 2849 transitions. [2024-11-28 03:15:22,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:15:22,880 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 36.130434782608695) internal successors, (831), 23 states have internal predecessors, (831), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 582 [2024-11-28 03:15:22,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:22,890 INFO L225 Difference]: With dead ends: 2046 [2024-11-28 03:15:22,890 INFO L226 Difference]: Without dead ends: 2039 [2024-11-28 03:15:22,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1147 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:15:22,892 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 3287 mSDsluCounter, 4116 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 4499 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:22,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3313 Valid, 4499 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2024-11-28 03:15:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2039. [2024-11-28 03:15:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 2004 states have (on average 1.3867265469061876) internal successors, (2779), 2007 states have internal predecessors, (2779), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:15:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2839 transitions. [2024-11-28 03:15:22,971 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2839 transitions. Word has length 582 [2024-11-28 03:15:22,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:22,973 INFO L471 AbstractCegarLoop]: Abstraction has 2039 states and 2839 transitions. [2024-11-28 03:15:22,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 36.130434782608695) internal successors, (831), 23 states have internal predecessors, (831), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:15:22,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2839 transitions. [2024-11-28 03:15:23,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2024-11-28 03:15:23,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:23,004 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:23,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:15:23,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:23,205 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:23,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:23,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2071572887, now seen corresponding path program 2 times [2024-11-28 03:15:23,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:23,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550566782] [2024-11-28 03:15:23,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:15:23,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:23,925 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:15:23,925 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:15:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3636 backedges. 2929 proven. 703 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:27,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:27,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550566782] [2024-11-28 03:15:27,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550566782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:27,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732842380] [2024-11-28 03:15:27,489 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:15:27,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:27,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:27,492 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:27,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:15:29,107 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:15:29,107 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:15:29,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 3977 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:15:29,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:30,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3636 backedges. 3632 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:30,178 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:15:30,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732842380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:30,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:15:30,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 25 [2024-11-28 03:15:30,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27559623] [2024-11-28 03:15:30,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:30,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:15:30,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:30,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:15:30,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:15:30,181 INFO L87 Difference]: Start difference. First operand 2039 states and 2839 transitions. Second operand has 23 states, 23 states have (on average 35.43478260869565) internal successors, (815), 23 states have internal predecessors, (815), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:30,580 INFO L93 Difference]: Finished difference Result 2247 states and 3128 transitions. [2024-11-28 03:15:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:15:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 35.43478260869565) internal successors, (815), 23 states have internal predecessors, (815), 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 822 [2024-11-28 03:15:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:30,589 INFO L225 Difference]: With dead ends: 2247 [2024-11-28 03:15:30,589 INFO L226 Difference]: Without dead ends: 2032 [2024-11-28 03:15:30,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 844 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:15:30,591 INFO L435 NwaCegarLoop]: 2315 mSDtfsCounter, 2506 mSDsluCounter, 8880 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 11195 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:30,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 11195 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:15:30,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2024-11-28 03:15:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2032. [2024-11-28 03:15:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 1999 states have (on average 1.386193096548274) internal successors, (2771), 2000 states have internal predecessors, (2771), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:15:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 2831 transitions. [2024-11-28 03:15:30,650 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 2831 transitions. Word has length 822 [2024-11-28 03:15:30,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:30,651 INFO L471 AbstractCegarLoop]: Abstraction has 2032 states and 2831 transitions. [2024-11-28 03:15:30,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 35.43478260869565) internal successors, (815), 23 states have internal predecessors, (815), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 2831 transitions. [2024-11-28 03:15:30,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2024-11-28 03:15:30,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:30,662 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:30,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:15:30,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:15:30,862 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:30,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:30,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2046236596, now seen corresponding path program 3 times [2024-11-28 03:15:30,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:30,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191621999] [2024-11-28 03:15:30,863 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:15:30,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:31,189 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:15:31,189 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:15:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3596 backedges. 647 proven. 0 refuted. 0 times theorem prover too weak. 2949 trivial. 0 not checked. [2024-11-28 03:15:31,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:31,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191621999] [2024-11-28 03:15:31,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191621999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:31,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:15:31,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017466682] [2024-11-28 03:15:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:31,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:15:31,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:31,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:15:31,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:15:31,429 INFO L87 Difference]: Start difference. First operand 2032 states and 2831 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:32,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:32,494 INFO L93 Difference]: Finished difference Result 5255 states and 7302 transitions. [2024-11-28 03:15:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:15:32,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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 822 [2024-11-28 03:15:32,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:32,505 INFO L225 Difference]: With dead ends: 5255 [2024-11-28 03:15:32,506 INFO L226 Difference]: Without dead ends: 3322 [2024-11-28 03:15:32,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:15:32,514 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 194 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:32,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 986 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:15:32,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2024-11-28 03:15:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2382. [2024-11-28 03:15:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2349 states have (on average 1.3754789272030652) internal successors, (3231), 2350 states have internal predecessors, (3231), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:15:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3291 transitions. [2024-11-28 03:15:32,613 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3291 transitions. Word has length 822 [2024-11-28 03:15:32,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:32,614 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 3291 transitions. [2024-11-28 03:15:32,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3291 transitions. [2024-11-28 03:15:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2024-11-28 03:15:32,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:32,634 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:32,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:15:32,634 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1139737412, now seen corresponding path program 1 times [2024-11-28 03:15:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:32,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987153889] [2024-11-28 03:15:32,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3641 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 3307 trivial. 0 not checked. [2024-11-28 03:15:35,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:35,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987153889] [2024-11-28 03:15:35,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987153889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:35,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:35,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:15:35,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225280348] [2024-11-28 03:15:35,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:35,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:15:35,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:35,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:15:35,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:15:35,689 INFO L87 Difference]: Start difference. First operand 2382 states and 3291 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:36,583 INFO L93 Difference]: Finished difference Result 4695 states and 6493 transitions. [2024-11-28 03:15:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:15:36,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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 832 [2024-11-28 03:15:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:36,592 INFO L225 Difference]: With dead ends: 4695 [2024-11-28 03:15:36,592 INFO L226 Difference]: Without dead ends: 2442 [2024-11-28 03:15:36,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:15:36,597 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 15 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:36,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 858 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:15:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-11-28 03:15:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2422. [2024-11-28 03:15:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2389 states have (on average 1.3733779824194223) internal successors, (3281), 2390 states have internal predecessors, (3281), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:15:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3341 transitions. [2024-11-28 03:15:36,716 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3341 transitions. Word has length 832 [2024-11-28 03:15:36,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:36,716 INFO L471 AbstractCegarLoop]: Abstraction has 2422 states and 3341 transitions. [2024-11-28 03:15:36,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3341 transitions. [2024-11-28 03:15:36,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2024-11-28 03:15:36,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:36,778 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:36,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:15:36,778 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:36,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:36,779 INFO L85 PathProgramCache]: Analyzing trace with hash 366212716, now seen corresponding path program 1 times [2024-11-28 03:15:36,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762822612] [2024-11-28 03:15:36,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3686 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 3298 trivial. 0 not checked. [2024-11-28 03:15:40,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:40,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762822612] [2024-11-28 03:15:40,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762822612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:40,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:40,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:15:40,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136458577] [2024-11-28 03:15:40,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:40,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:15:40,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:40,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:15:40,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:15:40,344 INFO L87 Difference]: Start difference. First operand 2422 states and 3341 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:41,218 INFO L93 Difference]: Finished difference Result 4858 states and 6709 transitions. [2024-11-28 03:15:41,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:15:41,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 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 842 [2024-11-28 03:15:41,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:41,227 INFO L225 Difference]: With dead ends: 4858 [2024-11-28 03:15:41,227 INFO L226 Difference]: Without dead ends: 2562 [2024-11-28 03:15:41,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:15:41,231 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 34 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:41,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1481 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:15:41,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2024-11-28 03:15:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2502. [2024-11-28 03:15:41,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 2469 states have (on average 1.3653300931551235) internal successors, (3371), 2470 states have internal predecessors, (3371), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:15:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3431 transitions. [2024-11-28 03:15:41,400 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3431 transitions. Word has length 842 [2024-11-28 03:15:41,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:41,401 INFO L471 AbstractCegarLoop]: Abstraction has 2502 states and 3431 transitions. [2024-11-28 03:15:41,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:41,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3431 transitions. [2024-11-28 03:15:41,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-28 03:15:41,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:41,427 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:41,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:15:41,427 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:15:41,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:41,428 INFO L85 PathProgramCache]: Analyzing trace with hash -965755214, now seen corresponding path program 1 times [2024-11-28 03:15:41,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:41,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088268519] [2024-11-28 03:15:41,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:41,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3731 backedges. 550 proven. 3 refuted. 0 times theorem prover too weak. 3178 trivial. 0 not checked. [2024-11-28 03:19:18,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:18,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088268519] [2024-11-28 03:19:18,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088268519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:18,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031582350] [2024-11-28 03:19:18,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:18,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:18,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:18,320 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:18,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:19:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:46,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 3945 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:19:46,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:46,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-28 03:19:47,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:19:47,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 58 [2024-11-28 03:19:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3731 backedges. 976 proven. 35 refuted. 0 times theorem prover too weak. 2720 trivial. 0 not checked. [2024-11-28 03:19:47,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:49,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2024-11-28 03:19:51,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031582350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:51,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:19:51,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 13] total 15 [2024-11-28 03:19:51,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314705143] [2024-11-28 03:19:51,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:51,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:19:51,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:51,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:19:51,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:19:51,738 INFO L87 Difference]: Start difference. First operand 2502 states and 3431 transitions. Second operand has 15 states, 15 states have (on average 19.2) internal successors, (288), 15 states have internal predecessors, (288), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:19:59,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:19:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:59,556 INFO L93 Difference]: Finished difference Result 4853 states and 6659 transitions. [2024-11-28 03:19:59,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:19:59,557 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 19.2) internal successors, (288), 15 states have internal predecessors, (288), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 852 [2024-11-28 03:19:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:59,574 INFO L225 Difference]: With dead ends: 4853 [2024-11-28 03:19:59,574 INFO L226 Difference]: Without dead ends: 2537 [2024-11-28 03:19:59,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1647 GetRequests, 1614 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=201, Invalid=989, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:19:59,579 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 749 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 5168 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:59,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 5168 Invalid, 3068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3057 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-28 03:19:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2024-11-28 03:19:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2514. [2024-11-28 03:19:59,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2514 states, 2480 states have (on average 1.3653225806451612) internal successors, (3386), 2481 states have internal predecessors, (3386), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:19:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2514 states to 2514 states and 3446 transitions. [2024-11-28 03:19:59,667 INFO L78 Accepts]: Start accepts. Automaton has 2514 states and 3446 transitions. Word has length 852 [2024-11-28 03:19:59,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:59,667 INFO L471 AbstractCegarLoop]: Abstraction has 2514 states and 3446 transitions. [2024-11-28 03:19:59,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 19.2) internal successors, (288), 15 states have internal predecessors, (288), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:19:59,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2514 states and 3446 transitions. [2024-11-28 03:19:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2024-11-28 03:19:59,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:59,680 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:59,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:59,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:59,881 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:19:59,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:59,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1033122298, now seen corresponding path program 1 times [2024-11-28 03:19:59,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:59,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977919642] [2024-11-28 03:19:59,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:59,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3706 backedges. 1015 proven. 0 refuted. 0 times theorem prover too weak. 2691 trivial. 0 not checked. [2024-11-28 03:20:02,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:02,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977919642] [2024-11-28 03:20:02,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977919642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:02,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:02,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:20:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544551082] [2024-11-28 03:20:02,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:02,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:20:02,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:02,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:20:02,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:02,133 INFO L87 Difference]: Start difference. First operand 2514 states and 3446 transitions. Second operand has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:20:02,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:02,762 INFO L93 Difference]: Finished difference Result 4931 states and 6765 transitions. [2024-11-28 03:20:02,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:02,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 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 853 [2024-11-28 03:20:02,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:02,775 INFO L225 Difference]: With dead ends: 4931 [2024-11-28 03:20:02,776 INFO L226 Difference]: Without dead ends: 2554 [2024-11-28 03:20:02,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:02,781 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 9 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:02,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 887 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:20:02,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2024-11-28 03:20:02,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2544. [2024-11-28 03:20:02,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2510 states have (on average 1.3609561752988049) internal successors, (3416), 2511 states have internal predecessors, (3416), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:20:02,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3476 transitions. [2024-11-28 03:20:02,873 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3476 transitions. Word has length 853 [2024-11-28 03:20:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:02,873 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 3476 transitions. [2024-11-28 03:20:02,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:20:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3476 transitions. [2024-11-28 03:20:02,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2024-11-28 03:20:02,885 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:02,887 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:02,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:20:02,887 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:20:02,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:02,888 INFO L85 PathProgramCache]: Analyzing trace with hash -703745308, now seen corresponding path program 1 times [2024-11-28 03:20:02,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:02,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656076853] [2024-11-28 03:20:02,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:02,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:03,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 957 proven. 0 refuted. 0 times theorem prover too weak. 2776 trivial. 0 not checked. [2024-11-28 03:20:03,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:03,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656076853] [2024-11-28 03:20:03,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656076853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:03,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:03,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:03,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367825692] [2024-11-28 03:20:03,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:03,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:03,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:03,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:03,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:03,920 INFO L87 Difference]: Start difference. First operand 2544 states and 3476 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:20:04,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:04,030 INFO L93 Difference]: Finished difference Result 5108 states and 6998 transitions. [2024-11-28 03:20:04,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:04,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 853 [2024-11-28 03:20:04,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:04,040 INFO L225 Difference]: With dead ends: 5108 [2024-11-28 03:20:04,040 INFO L226 Difference]: Without dead ends: 2662 [2024-11-28 03:20:04,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:04,044 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 1 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:04,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 558 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:20:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2024-11-28 03:20:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2662. [2024-11-28 03:20:04,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2662 states, 2628 states have (on average 1.3439878234398783) internal successors, (3532), 2629 states have internal predecessors, (3532), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:20:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 3592 transitions. [2024-11-28 03:20:04,139 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 3592 transitions. Word has length 853 [2024-11-28 03:20:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:04,140 INFO L471 AbstractCegarLoop]: Abstraction has 2662 states and 3592 transitions. [2024-11-28 03:20:04,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:20:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 3592 transitions. [2024-11-28 03:20:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2024-11-28 03:20:04,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:04,154 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:04,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:20:04,154 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:20:04,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:04,155 INFO L85 PathProgramCache]: Analyzing trace with hash 176120934, now seen corresponding path program 1 times [2024-11-28 03:20:04,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:04,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800566592] [2024-11-28 03:20:04,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:04,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 2803 trivial. 0 not checked. [2024-11-28 03:20:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800566592] [2024-11-28 03:20:05,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800566592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:05,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:05,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:20:05,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296527282] [2024-11-28 03:20:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:05,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:05,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:05,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:05,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:05,047 INFO L87 Difference]: Start difference. First operand 2662 states and 3592 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:20:05,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:05,122 INFO L93 Difference]: Finished difference Result 4337 states and 5781 transitions. [2024-11-28 03:20:05,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:20:05,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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 853 [2024-11-28 03:20:05,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:05,128 INFO L225 Difference]: With dead ends: 4337 [2024-11-28 03:20:05,129 INFO L226 Difference]: Without dead ends: 1705 [2024-11-28 03:20:05,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:20:05,132 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 9 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:05,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 575 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:20:05,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-28 03:20:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2024-11-28 03:20:05,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1671 states have (on average 1.2812687013764212) internal successors, (2141), 1672 states have internal predecessors, (2141), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:20:05,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2201 transitions. [2024-11-28 03:20:05,194 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2201 transitions. Word has length 853 [2024-11-28 03:20:05,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:05,195 INFO L471 AbstractCegarLoop]: Abstraction has 1705 states and 2201 transitions. [2024-11-28 03:20:05,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:20:05,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2201 transitions. [2024-11-28 03:20:05,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 855 [2024-11-28 03:20:05,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:05,206 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:05,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:20:05,207 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:20:05,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:05,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1451883049, now seen corresponding path program 1 times [2024-11-28 03:20:05,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:05,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533207923] [2024-11-28 03:20:05,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:05,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:48,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3706 backedges. 547 proven. 5 refuted. 0 times theorem prover too weak. 3154 trivial. 0 not checked. [2024-11-28 03:25:48,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:48,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533207923] [2024-11-28 03:25:48,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533207923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:48,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46558552] [2024-11-28 03:25:48,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:48,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:48,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:48,821 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:48,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:26:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:26,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 3961 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 03:26:26,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:26,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-11-28 03:26:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3706 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 3390 trivial. 0 not checked. [2024-11-28 03:26:27,016 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:27,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46558552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:27,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:27,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-28 03:26:27,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100548210] [2024-11-28 03:26:27,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:27,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:26:27,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:27,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:26:27,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:26:27,018 INFO L87 Difference]: Start difference. First operand 1705 states and 2201 transitions. Second operand has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 11 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:26:28,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:28,600 INFO L93 Difference]: Finished difference Result 3345 states and 4327 transitions. [2024-11-28 03:26:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:26:28,601 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 11 states have internal predecessors, (144), 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 854 [2024-11-28 03:26:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:28,606 INFO L225 Difference]: With dead ends: 3345 [2024-11-28 03:26:28,606 INFO L226 Difference]: Without dead ends: 1693 [2024-11-28 03:26:28,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:26:28,609 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 288 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:28,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1133 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:26:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2024-11-28 03:26:28,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1693. [2024-11-28 03:26:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1659 states have (on average 1.2808921036769139) internal successors, (2125), 1660 states have internal predecessors, (2125), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:26:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2185 transitions. [2024-11-28 03:26:28,666 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2185 transitions. Word has length 854 [2024-11-28 03:26:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:28,666 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2185 transitions. [2024-11-28 03:26:28,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 11 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:26:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2185 transitions. [2024-11-28 03:26:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2024-11-28 03:26:28,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:28,676 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:28,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:28,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:28,877 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:26:28,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:28,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1891085206, now seen corresponding path program 2 times [2024-11-28 03:26:28,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:28,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487155475] [2024-11-28 03:26:28,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:26:28,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:19,717 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:28:19,717 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:28:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3686 backedges. 527 proven. 5 refuted. 0 times theorem prover too weak. 3154 trivial. 0 not checked. [2024-11-28 03:28:20,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487155475] [2024-11-28 03:28:20,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487155475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298110228] [2024-11-28 03:28:20,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:28:20,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:20,950 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:20,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea5f2c3-9fab-4bbc-917d-a5bbcbeab111/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:29:08,399 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:29:08,399 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:29:08,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 3962 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:29:08,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3686 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 3312 trivial. 0 not checked. [2024-11-28 03:29:08,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:29:08,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298110228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:08,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:08,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2024-11-28 03:29:08,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366813109] [2024-11-28 03:29:08,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:08,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:29:08,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:08,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:29:08,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:29:08,756 INFO L87 Difference]: Start difference. First operand 1693 states and 2185 transitions. Second operand has 8 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 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)