./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU --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 6d288c71d1b2e69759b6f9526e6975c86927bb09c8445c07388947e8f3491289 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:09,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:09,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:09,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:09,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:09,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:09,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:09,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:09,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:09,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:09,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:09,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:09,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:09,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:09,362 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:09,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:09,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:09,366 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:09,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:09,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:09,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:09,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:09,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:09,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:09,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:09,372 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:09,373 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:09,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:09,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:09,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:09,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:09,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:09,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:09,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:09,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:09,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:09,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:09,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:09,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:09,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:09,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:09,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:09,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:09,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:09,383 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d288c71d1b2e69759b6f9526e6975c86927bb09c8445c07388947e8f3491289 [2024-10-31 21:59:09,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:09,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:09,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:09,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:09,731 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:09,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c Unable to find full path for "g++" [2024-10-31 21:59:11,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:12,000 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:12,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c [2024-10-31 21:59:12,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/data/280d46f60/857a2c825a1846928741d1fe8c3a79f3/FLAG78130a6da [2024-10-31 21:59:12,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/data/280d46f60/857a2c825a1846928741d1fe8c3a79f3 [2024-10-31 21:59:12,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:12,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:12,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:12,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:12,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:12,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727c2bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12, skipping insertion in model container [2024-10-31 21:59:12,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:12,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:12,317 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:12,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:12,364 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:12,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12 WrapperNode [2024-10-31 21:59:12,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:12,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:12,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:12,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:12,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,406 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 156 [2024-10-31 21:59:12,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:12,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:12,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:12,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:12,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,427 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,440 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:59:12,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:12,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:12,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:12,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:12,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (1/1) ... [2024-10-31 21:59:12,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:12,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:12,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:12,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 21:59:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 21:59:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 21:59:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 21:59:12,630 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:12,632 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:13,394 INFO L? ?]: Removed 138 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:13,394 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:13,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:13,411 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 21:59:13,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:13 BoogieIcfgContainer [2024-10-31 21:59:13,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:13,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:13,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:13,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:13,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:12" (1/3) ... [2024-10-31 21:59:13,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc9a705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:13, skipping insertion in model container [2024-10-31 21:59:13,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:12" (2/3) ... [2024-10-31 21:59:13,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc9a705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:13, skipping insertion in model container [2024-10-31 21:59:13,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:13" (3/3) ... [2024-10-31 21:59:13,423 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_unwindbound5.c [2024-10-31 21:59:13,441 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:13,442 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2024-10-31 21:59:13,499 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:13,506 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;@1aef960c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:13,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-10-31 21:59:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 80 states have (on average 1.8375) internal successors, (147), 136 states have internal predecessors, (147), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-31 21:59:13,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 21:59:13,519 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:13,520 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:13,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:13,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:13,526 INFO L85 PathProgramCache]: Analyzing trace with hash -2142177312, now seen corresponding path program 1 times [2024-10-31 21:59:13,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:13,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080381036] [2024-10-31 21:59:13,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:13,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:13,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:13,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:13,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:13,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080381036] [2024-10-31 21:59:13,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080381036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:13,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:13,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:13,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082000132] [2024-10-31 21:59:13,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:13,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:13,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:13,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:13,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:13,801 INFO L87 Difference]: Start difference. First operand has 146 states, 80 states have (on average 1.8375) internal successors, (147), 136 states have internal predecessors, (147), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:59:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:13,832 INFO L93 Difference]: Finished difference Result 288 states and 324 transitions. [2024-10-31 21:59:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:13,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-10-31 21:59:13,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:13,842 INFO L225 Difference]: With dead ends: 288 [2024-10-31 21:59:13,842 INFO L226 Difference]: Without dead ends: 139 [2024-10-31 21:59:13,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:13,850 INFO L432 NwaCegarLoop]: 155 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, 155 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 [2024-10-31 21:59:13,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-31 21:59:13,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-10-31 21:59:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 75 states have (on average 1.8133333333333332) internal successors, (136), 130 states have internal predecessors, (136), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2024-10-31 21:59:13,899 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 15 [2024-10-31 21:59:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:13,900 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2024-10-31 21:59:13,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:59:13,901 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2024-10-31 21:59:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 21:59:13,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:13,903 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:13,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:13,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:13,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:13,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1383858817, now seen corresponding path program 1 times [2024-10-31 21:59:13,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:13,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141641233] [2024-10-31 21:59:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:13,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,082 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:14,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:14,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141641233] [2024-10-31 21:59:14,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141641233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:14,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:14,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:14,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276047294] [2024-10-31 21:59:14,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:14,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:14,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:14,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:14,090 INFO L87 Difference]: Start difference. First operand 139 states and 148 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-31 21:59:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:14,198 INFO L93 Difference]: Finished difference Result 179 states and 189 transitions. [2024-10-31 21:59:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:14,199 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-10-31 21:59:14,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:14,201 INFO L225 Difference]: With dead ends: 179 [2024-10-31 21:59:14,201 INFO L226 Difference]: Without dead ends: 178 [2024-10-31 21:59:14,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:14,203 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 45 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:14,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 412 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:14,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-10-31 21:59:14,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 141. [2024-10-31 21:59:14,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 132 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:14,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 150 transitions. [2024-10-31 21:59:14,219 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 150 transitions. Word has length 15 [2024-10-31 21:59:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:14,221 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 150 transitions. [2024-10-31 21:59:14,222 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), 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) [2024-10-31 21:59:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 150 transitions. [2024-10-31 21:59:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-31 21:59:14,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:14,222 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:14,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:14,223 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:14,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash 50049677, now seen corresponding path program 1 times [2024-10-31 21:59:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:14,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844684249] [2024-10-31 21:59:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:14,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:14,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:14,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844684249] [2024-10-31 21:59:14,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844684249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:14,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:14,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:14,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751219874] [2024-10-31 21:59:14,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:14,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:14,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:14,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:14,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:14,330 INFO L87 Difference]: Start difference. First operand 141 states and 150 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (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) [2024-10-31 21:59:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:14,390 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2024-10-31 21:59:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-10-31 21:59:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:14,393 INFO L225 Difference]: With dead ends: 172 [2024-10-31 21:59:14,393 INFO L226 Difference]: Without dead ends: 143 [2024-10-31 21:59:14,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:14,395 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 8 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 415 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 [2024-10-31 21:59:14,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 415 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:14,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-31 21:59:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-31 21:59:14,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 134 states have internal predecessors, (140), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:14,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2024-10-31 21:59:14,408 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 16 [2024-10-31 21:59:14,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:14,408 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2024-10-31 21:59:14,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (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) [2024-10-31 21:59:14,409 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2024-10-31 21:59:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-31 21:59:14,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:14,409 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:14,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:14,410 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:14,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:14,411 INFO L85 PathProgramCache]: Analyzing trace with hash 676324676, now seen corresponding path program 1 times [2024-10-31 21:59:14,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:14,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160781003] [2024-10-31 21:59:14,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:14,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:14,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:14,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160781003] [2024-10-31 21:59:14,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160781003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:14,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:14,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:59:14,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854331866] [2024-10-31 21:59:14,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:14,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:14,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:14,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:14,648 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:15,021 INFO L93 Difference]: Finished difference Result 241 states and 264 transitions. [2024-10-31 21:59:15,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:15,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-31 21:59:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:15,025 INFO L225 Difference]: With dead ends: 241 [2024-10-31 21:59:15,025 INFO L226 Difference]: Without dead ends: 213 [2024-10-31 21:59:15,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:15,031 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 253 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:15,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 391 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:15,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-31 21:59:15,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 144. [2024-10-31 21:59:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 80 states have (on average 1.7625) internal successors, (141), 135 states have internal predecessors, (141), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 153 transitions. [2024-10-31 21:59:15,058 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 153 transitions. Word has length 19 [2024-10-31 21:59:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:15,059 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 153 transitions. [2024-10-31 21:59:15,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 153 transitions. [2024-10-31 21:59:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 21:59:15,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:15,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:15,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:15,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:15,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,065 INFO L85 PathProgramCache]: Analyzing trace with hash -508773292, now seen corresponding path program 1 times [2024-10-31 21:59:15,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710457322] [2024-10-31 21:59:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:15,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:15,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710457322] [2024-10-31 21:59:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710457322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:15,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598832293] [2024-10-31 21:59:15,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:15,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:15,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:15,191 INFO L87 Difference]: Start difference. First operand 144 states and 153 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-31 21:59:15,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:15,336 INFO L93 Difference]: Finished difference Result 208 states and 220 transitions. [2024-10-31 21:59:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:15,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 20 [2024-10-31 21:59:15,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:15,338 INFO L225 Difference]: With dead ends: 208 [2024-10-31 21:59:15,338 INFO L226 Difference]: Without dead ends: 206 [2024-10-31 21:59:15,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:15,340 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 128 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:15,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 538 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-31 21:59:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 163. [2024-10-31 21:59:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7575757575757576) internal successors, (174), 154 states have internal predecessors, (174), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:15,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 186 transitions. [2024-10-31 21:59:15,357 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 186 transitions. Word has length 20 [2024-10-31 21:59:15,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:15,357 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 186 transitions. [2024-10-31 21:59:15,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-31 21:59:15,357 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 186 transitions. [2024-10-31 21:59:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-31 21:59:15,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:15,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:15,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:15,362 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:15,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1407897195, now seen corresponding path program 1 times [2024-10-31 21:59:15,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577131034] [2024-10-31 21:59:15,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:15,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:15,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577131034] [2024-10-31 21:59:15,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577131034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:15,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:15,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:15,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436008395] [2024-10-31 21:59:15,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:15,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:15,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:15,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:15,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:15,492 INFO L87 Difference]: Start difference. First operand 163 states and 186 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-10-31 21:59:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:15,583 INFO L93 Difference]: Finished difference Result 316 states and 363 transitions. [2024-10-31 21:59:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:15,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 21 [2024-10-31 21:59:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:15,585 INFO L225 Difference]: With dead ends: 316 [2024-10-31 21:59:15,586 INFO L226 Difference]: Without dead ends: 167 [2024-10-31 21:59:15,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:15,588 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 16 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:15,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 544 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:15,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-10-31 21:59:15,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-10-31 21:59:15,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.7281553398058251) internal successors, (178), 158 states have internal predecessors, (178), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 190 transitions. [2024-10-31 21:59:15,613 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 190 transitions. Word has length 21 [2024-10-31 21:59:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:15,613 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 190 transitions. [2024-10-31 21:59:15,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-10-31 21:59:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 190 transitions. [2024-10-31 21:59:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 21:59:15,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:15,614 INFO L215 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] [2024-10-31 21:59:15,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:15,618 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:15,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1411929968, now seen corresponding path program 1 times [2024-10-31 21:59:15,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340164932] [2024-10-31 21:59:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:15,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683924844] [2024-10-31 21:59:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:15,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:15,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:15,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:59:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:59:15,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:15,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:15,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:15,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340164932] [2024-10-31 21:59:15,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:15,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683924844] [2024-10-31 21:59:15,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683924844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:15,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:15,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:15,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440160447] [2024-10-31 21:59:15,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:15,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:15,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:15,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:15,779 INFO L87 Difference]: Start difference. First operand 167 states and 190 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-31 21:59:16,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:16,157 INFO L93 Difference]: Finished difference Result 252 states and 292 transitions. [2024-10-31 21:59:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:16,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 25 [2024-10-31 21:59:16,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:16,162 INFO L225 Difference]: With dead ends: 252 [2024-10-31 21:59:16,162 INFO L226 Difference]: Without dead ends: 248 [2024-10-31 21:59:16,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:16,163 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 68 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:16,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 249 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:59:16,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-31 21:59:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 216. [2024-10-31 21:59:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 148 states have (on average 1.7432432432432432) internal successors, (258), 203 states have internal predecessors, (258), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 278 transitions. [2024-10-31 21:59:16,190 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 278 transitions. Word has length 25 [2024-10-31 21:59:16,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:16,190 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 278 transitions. [2024-10-31 21:59:16,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-31 21:59:16,190 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 278 transitions. [2024-10-31 21:59:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 21:59:16,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:16,191 INFO L215 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] [2024-10-31 21:59:16,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:59:16,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:16,392 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:16,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:16,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1411930638, now seen corresponding path program 1 times [2024-10-31 21:59:16,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:16,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670626881] [2024-10-31 21:59:16,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:16,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:16,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:16,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670626881] [2024-10-31 21:59:16,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670626881] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:16,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:16,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 21:59:16,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206548052] [2024-10-31 21:59:16,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:16,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:16,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:16,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:16,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:59:16,541 INFO L87 Difference]: Start difference. First operand 216 states and 278 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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) [2024-10-31 21:59:16,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:16,735 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2024-10-31 21:59:16,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:59:16,736 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 25 [2024-10-31 21:59:16,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:16,738 INFO L225 Difference]: With dead ends: 220 [2024-10-31 21:59:16,741 INFO L226 Difference]: Without dead ends: 217 [2024-10-31 21:59:16,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-31 21:59:16,742 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 350 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:16,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 539 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:16,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-31 21:59:16,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 190. [2024-10-31 21:59:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 125 states have (on average 1.72) internal successors, (215), 177 states have internal predecessors, (215), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 235 transitions. [2024-10-31 21:59:16,755 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 235 transitions. Word has length 25 [2024-10-31 21:59:16,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:16,755 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 235 transitions. [2024-10-31 21:59:16,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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) [2024-10-31 21:59:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 235 transitions. [2024-10-31 21:59:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-31 21:59:16,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:16,757 INFO L215 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] [2024-10-31 21:59:16,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:59:16,757 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:16,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:16,758 INFO L85 PathProgramCache]: Analyzing trace with hash -820176736, now seen corresponding path program 1 times [2024-10-31 21:59:16,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:16,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605598214] [2024-10-31 21:59:16,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:16,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:16,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:16,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605598214] [2024-10-31 21:59:16,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605598214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:16,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:16,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 21:59:16,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929093777] [2024-10-31 21:59:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:16,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:59:16,882 INFO L87 Difference]: Start difference. First operand 190 states and 235 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2024-10-31 21:59:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:17,035 INFO L93 Difference]: Finished difference Result 386 states and 478 transitions. [2024-10-31 21:59:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:59:17,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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 26 [2024-10-31 21:59:17,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:17,037 INFO L225 Difference]: With dead ends: 386 [2024-10-31 21:59:17,037 INFO L226 Difference]: Without dead ends: 214 [2024-10-31 21:59:17,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:59:17,039 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 40 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:17,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 690 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-31 21:59:17,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2024-10-31 21:59:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.7) internal successors, (221), 182 states have internal predecessors, (221), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:17,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2024-10-31 21:59:17,060 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 26 [2024-10-31 21:59:17,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:17,060 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2024-10-31 21:59:17,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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) [2024-10-31 21:59:17,061 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2024-10-31 21:59:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-31 21:59:17,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:17,063 INFO L215 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] [2024-10-31 21:59:17,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 21:59:17,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:17,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash 344971506, now seen corresponding path program 1 times [2024-10-31 21:59:17,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:17,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625844658] [2024-10-31 21:59:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:17,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:17,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:17,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:17,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625844658] [2024-10-31 21:59:17,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625844658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:17,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:17,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557244564] [2024-10-31 21:59:17,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:17,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:17,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:17,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:17,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:17,301 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-31 21:59:17,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:17,497 INFO L93 Difference]: Finished difference Result 222 states and 245 transitions. [2024-10-31 21:59:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:17,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 27 [2024-10-31 21:59:17,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:17,500 INFO L225 Difference]: With dead ends: 222 [2024-10-31 21:59:17,500 INFO L226 Difference]: Without dead ends: 221 [2024-10-31 21:59:17,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:17,501 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 63 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:17,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 400 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:17,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-31 21:59:17,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 196. [2024-10-31 21:59:17,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 183 states have internal predecessors, (222), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 242 transitions. [2024-10-31 21:59:17,523 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 242 transitions. Word has length 27 [2024-10-31 21:59:17,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:17,526 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 242 transitions. [2024-10-31 21:59:17,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-31 21:59:17,526 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 242 transitions. [2024-10-31 21:59:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 21:59:17,527 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:17,527 INFO L215 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] [2024-10-31 21:59:17,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 21:59:17,528 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:17,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:17,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2104182261, now seen corresponding path program 1 times [2024-10-31 21:59:17,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:17,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296207314] [2024-10-31 21:59:17,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:17,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:17,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488650897] [2024-10-31 21:59:17,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:17,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:17,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:17,549 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:17,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:59:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:17,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:59:17,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:17,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:17,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296207314] [2024-10-31 21:59:17,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488650897] [2024-10-31 21:59:17,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488650897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:17,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:17,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:17,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200153573] [2024-10-31 21:59:17,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:17,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:17,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:17,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:17,747 INFO L87 Difference]: Start difference. First operand 196 states and 242 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-10-31 21:59:18,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:18,220 INFO L93 Difference]: Finished difference Result 220 states and 244 transitions. [2024-10-31 21:59:18,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:18,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 28 [2024-10-31 21:59:18,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:18,223 INFO L225 Difference]: With dead ends: 220 [2024-10-31 21:59:18,223 INFO L226 Difference]: Without dead ends: 219 [2024-10-31 21:59:18,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:18,224 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 62 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:18,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 344 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:59:18,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-31 21:59:18,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 197. [2024-10-31 21:59:18,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 132 states have (on average 1.6893939393939394) internal successors, (223), 184 states have internal predecessors, (223), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 243 transitions. [2024-10-31 21:59:18,242 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 243 transitions. Word has length 28 [2024-10-31 21:59:18,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:18,243 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 243 transitions. [2024-10-31 21:59:18,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-10-31 21:59:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 243 transitions. [2024-10-31 21:59:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 21:59:18,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:18,245 INFO L215 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] [2024-10-31 21:59:18,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:18,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:18,445 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:18,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:18,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2084141954, now seen corresponding path program 1 times [2024-10-31 21:59:18,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:18,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986029087] [2024-10-31 21:59:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:18,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:18,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152196819] [2024-10-31 21:59:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:18,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:18,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:18,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:18,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 21:59:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:18,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:59:18,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:18,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:18,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:18,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986029087] [2024-10-31 21:59:18,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:18,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152196819] [2024-10-31 21:59:18,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152196819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:18,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:18,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102222799] [2024-10-31 21:59:18,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:18,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:18,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:18,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:18,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:18,559 INFO L87 Difference]: Start difference. First operand 197 states and 243 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-10-31 21:59:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:18,668 INFO L93 Difference]: Finished difference Result 223 states and 243 transitions. [2024-10-31 21:59:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:18,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 28 [2024-10-31 21:59:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:18,670 INFO L225 Difference]: With dead ends: 223 [2024-10-31 21:59:18,670 INFO L226 Difference]: Without dead ends: 221 [2024-10-31 21:59:18,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:18,671 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 61 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:18,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 273 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:18,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-31 21:59:18,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 197. [2024-10-31 21:59:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 184 states have internal predecessors, (221), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 241 transitions. [2024-10-31 21:59:18,697 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 241 transitions. Word has length 28 [2024-10-31 21:59:18,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:18,698 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 241 transitions. [2024-10-31 21:59:18,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-10-31 21:59:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 241 transitions. [2024-10-31 21:59:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-31 21:59:18,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:18,699 INFO L215 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] [2024-10-31 21:59:18,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 21:59:18,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:18,900 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:18,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:18,902 INFO L85 PathProgramCache]: Analyzing trace with hash 805140820, now seen corresponding path program 1 times [2024-10-31 21:59:18,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:18,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9058124] [2024-10-31 21:59:18,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:18,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:18,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691280199] [2024-10-31 21:59:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:18,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:18,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:18,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:18,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 21:59:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:59:19,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:19,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:19,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:19,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9058124] [2024-10-31 21:59:19,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691280199] [2024-10-31 21:59:19,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691280199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:19,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:19,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:19,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68108433] [2024-10-31 21:59:19,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:19,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:19,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:19,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:19,125 INFO L87 Difference]: Start difference. First operand 197 states and 241 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-10-31 21:59:19,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:19,277 INFO L93 Difference]: Finished difference Result 320 states and 411 transitions. [2024-10-31 21:59:19,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:19,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 29 [2024-10-31 21:59:19,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:19,280 INFO L225 Difference]: With dead ends: 320 [2024-10-31 21:59:19,280 INFO L226 Difference]: Without dead ends: 314 [2024-10-31 21:59:19,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:19,281 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 63 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:19,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 238 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:19,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-10-31 21:59:19,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 280. [2024-10-31 21:59:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 259 states have internal predecessors, (347), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 383 transitions. [2024-10-31 21:59:19,303 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 383 transitions. Word has length 29 [2024-10-31 21:59:19,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:19,303 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 383 transitions. [2024-10-31 21:59:19,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-10-31 21:59:19,304 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 383 transitions. [2024-10-31 21:59:19,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-31 21:59:19,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:19,305 INFO L215 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] [2024-10-31 21:59:19,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:19,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:19,507 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:19,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1405660772, now seen corresponding path program 1 times [2024-10-31 21:59:19,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:19,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518458963] [2024-10-31 21:59:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:19,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:19,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671713362] [2024-10-31 21:59:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:19,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:19,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:19,521 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:19,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 21:59:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:19,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:19,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:19,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:19,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518458963] [2024-10-31 21:59:19,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:19,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671713362] [2024-10-31 21:59:19,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671713362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:19,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:19,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:19,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178155919] [2024-10-31 21:59:19,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:19,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:19,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:19,711 INFO L87 Difference]: Start difference. First operand 280 states and 383 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-31 21:59:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:19,890 INFO L93 Difference]: Finished difference Result 301 states and 383 transitions. [2024-10-31 21:59:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:19,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 30 [2024-10-31 21:59:19,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:19,893 INFO L225 Difference]: With dead ends: 301 [2024-10-31 21:59:19,893 INFO L226 Difference]: Without dead ends: 300 [2024-10-31 21:59:19,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:19,894 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 195 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:19,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 223 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-31 21:59:19,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2024-10-31 21:59:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.6666666666666667) internal successors, (345), 259 states have internal predecessors, (345), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:19,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 381 transitions. [2024-10-31 21:59:19,911 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 381 transitions. Word has length 30 [2024-10-31 21:59:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:19,912 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 381 transitions. [2024-10-31 21:59:19,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-31 21:59:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 381 transitions. [2024-10-31 21:59:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 21:59:19,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:19,913 INFO L215 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] [2024-10-31 21:59:19,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 21:59:20,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 21:59:20,119 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:20,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:20,119 INFO L85 PathProgramCache]: Analyzing trace with hash 646220214, now seen corresponding path program 1 times [2024-10-31 21:59:20,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:20,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447178810] [2024-10-31 21:59:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:20,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:20,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:20,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447178810] [2024-10-31 21:59:20,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447178810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:20,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:20,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:20,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457462889] [2024-10-31 21:59:20,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:20,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:20,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:20,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:20,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:20,277 INFO L87 Difference]: Start difference. First operand 280 states and 381 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-10-31 21:59:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:21,299 INFO L93 Difference]: Finished difference Result 312 states and 391 transitions. [2024-10-31 21:59:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:21,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 31 [2024-10-31 21:59:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:21,301 INFO L225 Difference]: With dead ends: 312 [2024-10-31 21:59:21,301 INFO L226 Difference]: Without dead ends: 311 [2024-10-31 21:59:21,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:21,302 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 63 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:21,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 516 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-31 21:59:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-10-31 21:59:21,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 285. [2024-10-31 21:59:21,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.6603773584905661) internal successors, (352), 264 states have internal predecessors, (352), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2024-10-31 21:59:21,341 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 31 [2024-10-31 21:59:21,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:21,341 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2024-10-31 21:59:21,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-10-31 21:59:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2024-10-31 21:59:21,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 21:59:21,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:21,343 INFO L215 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] [2024-10-31 21:59:21,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 21:59:21,343 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:21,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:21,344 INFO L85 PathProgramCache]: Analyzing trace with hash 625811067, now seen corresponding path program 1 times [2024-10-31 21:59:21,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:21,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753905569] [2024-10-31 21:59:21,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:21,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:21,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385140684] [2024-10-31 21:59:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:21,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:21,358 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:21,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 21:59:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:21,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:21,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:21,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:21,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:21,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753905569] [2024-10-31 21:59:21,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:21,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385140684] [2024-10-31 21:59:21,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385140684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:21,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:21,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:21,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745845100] [2024-10-31 21:59:21,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:21,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:21,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:21,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:21,586 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-10-31 21:59:21,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:21,825 INFO L93 Difference]: Finished difference Result 306 states and 388 transitions. [2024-10-31 21:59:21,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:21,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 31 [2024-10-31 21:59:21,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:21,828 INFO L225 Difference]: With dead ends: 306 [2024-10-31 21:59:21,828 INFO L226 Difference]: Without dead ends: 305 [2024-10-31 21:59:21,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:21,830 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 157 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:21,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 236 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:21,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-10-31 21:59:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 285. [2024-10-31 21:59:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.650943396226415) internal successors, (350), 264 states have internal predecessors, (350), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:21,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 386 transitions. [2024-10-31 21:59:21,846 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 386 transitions. Word has length 31 [2024-10-31 21:59:21,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:21,846 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 386 transitions. [2024-10-31 21:59:21,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-10-31 21:59:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 386 transitions. [2024-10-31 21:59:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-31 21:59:21,847 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:21,847 INFO L215 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] [2024-10-31 21:59:21,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 21:59:22,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 21:59:22,054 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:22,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:22,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1442009671, now seen corresponding path program 1 times [2024-10-31 21:59:22,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:22,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605924039] [2024-10-31 21:59:22,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:22,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:22,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229216517] [2024-10-31 21:59:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:22,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:22,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:22,090 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:22,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 21:59:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:22,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:59:22,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:22,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:22,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:22,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605924039] [2024-10-31 21:59:22,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:22,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229216517] [2024-10-31 21:59:22,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229216517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:22,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:22,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:22,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147164478] [2024-10-31 21:59:22,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:22,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:22,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:22,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:22,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:22,269 INFO L87 Difference]: Start difference. First operand 285 states and 386 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-10-31 21:59:22,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:22,929 INFO L93 Difference]: Finished difference Result 329 states and 397 transitions. [2024-10-31 21:59:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:22,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 32 [2024-10-31 21:59:22,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:22,933 INFO L225 Difference]: With dead ends: 329 [2024-10-31 21:59:22,933 INFO L226 Difference]: Without dead ends: 328 [2024-10-31 21:59:22,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:22,934 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 173 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:22,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 419 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 21:59:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-31 21:59:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 287. [2024-10-31 21:59:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.644859813084112) internal successors, (352), 266 states have internal predecessors, (352), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:22,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 388 transitions. [2024-10-31 21:59:22,954 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 388 transitions. Word has length 32 [2024-10-31 21:59:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:22,954 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 388 transitions. [2024-10-31 21:59:22,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-10-31 21:59:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 388 transitions. [2024-10-31 21:59:22,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-31 21:59:22,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:22,957 INFO L215 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] [2024-10-31 21:59:22,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:23,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-31 21:59:23,160 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:23,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2074693306, now seen corresponding path program 1 times [2024-10-31 21:59:23,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:23,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494289523] [2024-10-31 21:59:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:23,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:23,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385708107] [2024-10-31 21:59:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:23,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:23,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:23,194 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:23,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 21:59:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:23,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:23,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:23,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:23,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:23,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494289523] [2024-10-31 21:59:23,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:23,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385708107] [2024-10-31 21:59:23,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385708107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:23,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:23,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:23,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115340556] [2024-10-31 21:59:23,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:23,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:23,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:23,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:23,309 INFO L87 Difference]: Start difference. First operand 287 states and 388 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-10-31 21:59:23,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:23,737 INFO L93 Difference]: Finished difference Result 313 states and 391 transitions. [2024-10-31 21:59:23,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:23,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 32 [2024-10-31 21:59:23,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:23,740 INFO L225 Difference]: With dead ends: 313 [2024-10-31 21:59:23,740 INFO L226 Difference]: Without dead ends: 312 [2024-10-31 21:59:23,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:23,741 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 115 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:23,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 297 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:59:23,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-10-31 21:59:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 287. [2024-10-31 21:59:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.6355140186915889) internal successors, (350), 266 states have internal predecessors, (350), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 386 transitions. [2024-10-31 21:59:23,758 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 386 transitions. Word has length 32 [2024-10-31 21:59:23,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:23,758 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 386 transitions. [2024-10-31 21:59:23,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-10-31 21:59:23,758 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 386 transitions. [2024-10-31 21:59:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 21:59:23,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:23,759 INFO L215 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] [2024-10-31 21:59:23,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 21:59:23,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 21:59:23,960 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:23,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:23,960 INFO L85 PathProgramCache]: Analyzing trace with hash 109017053, now seen corresponding path program 1 times [2024-10-31 21:59:23,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:23,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591195353] [2024-10-31 21:59:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:23,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770075496] [2024-10-31 21:59:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:23,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:23,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:23,977 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 21:59:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:24,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:24,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:24,200 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:24,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:24,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591195353] [2024-10-31 21:59:24,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:24,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770075496] [2024-10-31 21:59:24,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770075496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:24,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:24,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:24,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188030387] [2024-10-31 21:59:24,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:24,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:24,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:24,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:24,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:24,202 INFO L87 Difference]: Start difference. First operand 287 states and 386 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-31 21:59:24,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:24,819 INFO L93 Difference]: Finished difference Result 314 states and 390 transitions. [2024-10-31 21:59:24,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:24,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 33 [2024-10-31 21:59:24,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:24,822 INFO L225 Difference]: With dead ends: 314 [2024-10-31 21:59:24,822 INFO L226 Difference]: Without dead ends: 313 [2024-10-31 21:59:24,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:24,823 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 67 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:24,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 379 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 21:59:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-10-31 21:59:24,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2024-10-31 21:59:24,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.6261682242990654) internal successors, (348), 266 states have internal predecessors, (348), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 384 transitions. [2024-10-31 21:59:24,841 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 384 transitions. Word has length 33 [2024-10-31 21:59:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:24,842 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 384 transitions. [2024-10-31 21:59:24,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-31 21:59:24,842 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 384 transitions. [2024-10-31 21:59:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 21:59:24,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:24,843 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 21:59:24,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-31 21:59:25,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:25,047 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:25,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:25,048 INFO L85 PathProgramCache]: Analyzing trace with hash -647174383, now seen corresponding path program 1 times [2024-10-31 21:59:25,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:25,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799681561] [2024-10-31 21:59:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:25,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:25,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:25,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799681561] [2024-10-31 21:59:25,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799681561] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:25,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622412998] [2024-10-31 21:59:25,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:25,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:25,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:25,162 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:25,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 21:59:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:59:25,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:25,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:25,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622412998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:25,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:25,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-10-31 21:59:25,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775413991] [2024-10-31 21:59:25,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:25,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:59:25,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:25,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:59:25,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:59:25,312 INFO L87 Difference]: Start difference. First operand 287 states and 384 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-10-31 21:59:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:25,453 INFO L93 Difference]: Finished difference Result 331 states and 425 transitions. [2024-10-31 21:59:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 21:59:25,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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 35 [2024-10-31 21:59:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:25,456 INFO L225 Difference]: With dead ends: 331 [2024-10-31 21:59:25,456 INFO L226 Difference]: Without dead ends: 329 [2024-10-31 21:59:25,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-10-31 21:59:25,457 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 58 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:25,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 874 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:25,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-10-31 21:59:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 292. [2024-10-31 21:59:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 219 states have (on average 1.6164383561643836) internal successors, (354), 271 states have internal predecessors, (354), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 390 transitions. [2024-10-31 21:59:25,476 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 390 transitions. Word has length 35 [2024-10-31 21:59:25,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:25,477 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 390 transitions. [2024-10-31 21:59:25,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-10-31 21:59:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 390 transitions. [2024-10-31 21:59:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 21:59:25,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:25,478 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:25,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-31 21:59:25,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:25,679 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:25,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:25,679 INFO L85 PathProgramCache]: Analyzing trace with hash 835677494, now seen corresponding path program 1 times [2024-10-31 21:59:25,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:25,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658569556] [2024-10-31 21:59:25,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:25,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,791 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:25,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:25,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658569556] [2024-10-31 21:59:25,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658569556] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:25,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478750989] [2024-10-31 21:59:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:25,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:25,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:25,794 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:25,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 21:59:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 21:59:25,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:25,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:26,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478750989] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:26,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:26,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 12 [2024-10-31 21:59:26,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581531016] [2024-10-31 21:59:26,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:26,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 21:59:26,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:26,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 21:59:26,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:59:26,062 INFO L87 Difference]: Start difference. First operand 292 states and 390 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 21:59:26,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:26,251 INFO L93 Difference]: Finished difference Result 528 states and 673 transitions. [2024-10-31 21:59:26,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 21:59:26,252 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2024-10-31 21:59:26,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:26,254 INFO L225 Difference]: With dead ends: 528 [2024-10-31 21:59:26,254 INFO L226 Difference]: Without dead ends: 351 [2024-10-31 21:59:26,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-31 21:59:26,256 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 94 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:26,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 880 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-10-31 21:59:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 315. [2024-10-31 21:59:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 242 states have (on average 1.5826446280991735) internal successors, (383), 294 states have internal predecessors, (383), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:59:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 419 transitions. [2024-10-31 21:59:26,275 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 419 transitions. Word has length 37 [2024-10-31 21:59:26,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:26,276 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 419 transitions. [2024-10-31 21:59:26,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 21:59:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 419 transitions. [2024-10-31 21:59:26,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-31 21:59:26,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:26,277 INFO L215 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] [2024-10-31 21:59:26,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:26,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:26,478 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:26,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:26,478 INFO L85 PathProgramCache]: Analyzing trace with hash 136196672, now seen corresponding path program 1 times [2024-10-31 21:59:26,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:26,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067269367] [2024-10-31 21:59:26,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:26,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:26,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:26,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:26,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:26,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067269367] [2024-10-31 21:59:26,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067269367] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:26,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053346898] [2024-10-31 21:59:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:26,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:26,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:26,660 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:26,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-31 21:59:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:26,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:26,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:26,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:26,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053346898] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:26,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:26,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-10-31 21:59:26,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275157165] [2024-10-31 21:59:26,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:26,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 21:59:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 21:59:26,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:26,898 INFO L87 Difference]: Start difference. First operand 315 states and 419 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:59:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:27,913 INFO L93 Difference]: Finished difference Result 849 states and 1065 transitions. [2024-10-31 21:59:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-31 21:59:27,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-10-31 21:59:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:27,918 INFO L225 Difference]: With dead ends: 849 [2024-10-31 21:59:27,918 INFO L226 Difference]: Without dead ends: 821 [2024-10-31 21:59:27,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 74 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-10-31 21:59:27,919 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 892 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:27,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 779 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 21:59:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-10-31 21:59:27,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 459. [2024-10-31 21:59:27,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.6084656084656084) internal successors, (608), 430 states have internal predecessors, (608), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-31 21:59:27,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 660 transitions. [2024-10-31 21:59:27,952 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 660 transitions. Word has length 38 [2024-10-31 21:59:27,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:27,953 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 660 transitions. [2024-10-31 21:59:27,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:59:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 660 transitions. [2024-10-31 21:59:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 21:59:27,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:27,954 INFO L215 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] [2024-10-31 21:59:27,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-31 21:59:28,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-31 21:59:28,158 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:28,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:28,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1283008566, now seen corresponding path program 1 times [2024-10-31 21:59:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:28,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218152563] [2024-10-31 21:59:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:28,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:28,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633432244] [2024-10-31 21:59:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:28,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:28,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:28,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:28,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 21:59:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:28,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:28,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:28,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:28,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218152563] [2024-10-31 21:59:28,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633432244] [2024-10-31 21:59:28,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633432244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:28,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:28,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:28,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782339544] [2024-10-31 21:59:28,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:28,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:28,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:28,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:28,365 INFO L87 Difference]: Start difference. First operand 459 states and 660 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:28,745 INFO L93 Difference]: Finished difference Result 479 states and 662 transitions. [2024-10-31 21:59:28,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:28,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-10-31 21:59:28,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:28,748 INFO L225 Difference]: With dead ends: 479 [2024-10-31 21:59:28,748 INFO L226 Difference]: Without dead ends: 478 [2024-10-31 21:59:28,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:28,750 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 197 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:28,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 219 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:28,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-10-31 21:59:28,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 459. [2024-10-31 21:59:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.6031746031746033) internal successors, (606), 430 states have internal predecessors, (606), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-31 21:59:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 658 transitions. [2024-10-31 21:59:28,780 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 658 transitions. Word has length 41 [2024-10-31 21:59:28,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:28,780 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 658 transitions. [2024-10-31 21:59:28,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 658 transitions. [2024-10-31 21:59:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 21:59:28,781 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:28,781 INFO L215 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] [2024-10-31 21:59:28,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-31 21:59:28,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-31 21:59:28,982 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:28,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:28,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1118559774, now seen corresponding path program 1 times [2024-10-31 21:59:28,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:28,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938299485] [2024-10-31 21:59:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:28,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:28,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231198248] [2024-10-31 21:59:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:28,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:28,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:28,997 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:29,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-31 21:59:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:29,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:59:29,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:29,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:29,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938299485] [2024-10-31 21:59:29,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231198248] [2024-10-31 21:59:29,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231198248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:29,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:29,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:29,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105130771] [2024-10-31 21:59:29,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:29,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:29,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:29,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:29,205 INFO L87 Difference]: Start difference. First operand 459 states and 658 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:30,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:30,020 INFO L93 Difference]: Finished difference Result 488 states and 664 transitions. [2024-10-31 21:59:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-10-31 21:59:30,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:30,022 INFO L225 Difference]: With dead ends: 488 [2024-10-31 21:59:30,023 INFO L226 Difference]: Without dead ends: 487 [2024-10-31 21:59:30,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:30,024 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 391 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:30,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 357 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 21:59:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-10-31 21:59:30,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 459. [2024-10-31 21:59:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.597883597883598) internal successors, (604), 430 states have internal predecessors, (604), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-31 21:59:30,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 656 transitions. [2024-10-31 21:59:30,052 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 656 transitions. Word has length 42 [2024-10-31 21:59:30,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:30,053 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 656 transitions. [2024-10-31 21:59:30,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:30,053 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 656 transitions. [2024-10-31 21:59:30,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 21:59:30,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:30,054 INFO L215 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] [2024-10-31 21:59:30,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:30,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-31 21:59:30,258 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:30,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:30,259 INFO L85 PathProgramCache]: Analyzing trace with hash -315614516, now seen corresponding path program 1 times [2024-10-31 21:59:30,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:30,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607091083] [2024-10-31 21:59:30,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:30,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439100432] [2024-10-31 21:59:30,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:30,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:30,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:30,280 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:30,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-31 21:59:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:30,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:30,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:30,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:30,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:30,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607091083] [2024-10-31 21:59:30,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439100432] [2024-10-31 21:59:30,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439100432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:30,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:30,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:30,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991631057] [2024-10-31 21:59:30,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:30,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:30,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:30,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:30,383 INFO L87 Difference]: Start difference. First operand 459 states and 656 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:30,743 INFO L93 Difference]: Finished difference Result 488 states and 667 transitions. [2024-10-31 21:59:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:30,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-10-31 21:59:30,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:30,745 INFO L225 Difference]: With dead ends: 488 [2024-10-31 21:59:30,745 INFO L226 Difference]: Without dead ends: 487 [2024-10-31 21:59:30,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:30,746 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 107 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:30,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 291 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-10-31 21:59:30,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 459. [2024-10-31 21:59:30,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.5925925925925926) internal successors, (602), 430 states have internal predecessors, (602), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-31 21:59:30,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 654 transitions. [2024-10-31 21:59:30,811 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 654 transitions. Word has length 43 [2024-10-31 21:59:30,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:30,813 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 654 transitions. [2024-10-31 21:59:30,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:30,814 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 654 transitions. [2024-10-31 21:59:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-31 21:59:30,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:30,815 INFO L215 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] [2024-10-31 21:59:30,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:31,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-31 21:59:31,016 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:31,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:31,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1194115292, now seen corresponding path program 1 times [2024-10-31 21:59:31,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:31,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856812216] [2024-10-31 21:59:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:31,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:31,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229588024] [2024-10-31 21:59:31,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:31,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:31,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:31,038 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:31,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-31 21:59:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:31,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:31,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:31,275 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:31,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:31,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856812216] [2024-10-31 21:59:31,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:31,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229588024] [2024-10-31 21:59:31,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229588024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:31,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:31,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586793409] [2024-10-31 21:59:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:31,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:31,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:31,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:31,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:31,278 INFO L87 Difference]: Start difference. First operand 459 states and 654 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:31,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:31,837 INFO L93 Difference]: Finished difference Result 489 states and 666 transitions. [2024-10-31 21:59:31,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:31,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-10-31 21:59:31,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:31,840 INFO L225 Difference]: With dead ends: 489 [2024-10-31 21:59:31,840 INFO L226 Difference]: Without dead ends: 488 [2024-10-31 21:59:31,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:31,842 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 106 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:31,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 293 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 21:59:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-10-31 21:59:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 459. [2024-10-31 21:59:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.5873015873015872) internal successors, (600), 430 states have internal predecessors, (600), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-31 21:59:31,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 652 transitions. [2024-10-31 21:59:31,877 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 652 transitions. Word has length 44 [2024-10-31 21:59:31,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:31,877 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 652 transitions. [2024-10-31 21:59:31,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 652 transitions. [2024-10-31 21:59:31,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 21:59:31,878 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:31,879 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-10-31 21:59:31,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-31 21:59:32,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-31 21:59:32,079 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:32,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:32,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1183414308, now seen corresponding path program 1 times [2024-10-31 21:59:32,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:32,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166730247] [2024-10-31 21:59:32,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:32,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,243 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:32,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:32,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166730247] [2024-10-31 21:59:32,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166730247] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:32,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446438376] [2024-10-31 21:59:32,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:32,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:32,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:32,247 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:32,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-31 21:59:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:32,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:59:32,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:32,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:32,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446438376] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:32,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:32,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-10-31 21:59:32,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974980927] [2024-10-31 21:59:32,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:32,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-31 21:59:32,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:32,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-31 21:59:32,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2024-10-31 21:59:32,729 INFO L87 Difference]: Start difference. First operand 459 states and 652 transitions. Second operand has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 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) [2024-10-31 21:59:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:33,525 INFO L93 Difference]: Finished difference Result 1305 states and 1810 transitions. [2024-10-31 21:59:33,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-31 21:59:33,526 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 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 45 [2024-10-31 21:59:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:33,530 INFO L225 Difference]: With dead ends: 1305 [2024-10-31 21:59:33,530 INFO L226 Difference]: Without dead ends: 984 [2024-10-31 21:59:33,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2024-10-31 21:59:33,534 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 624 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:33,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 3087 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-10-31 21:59:33,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 779. [2024-10-31 21:59:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 668 states have (on average 1.598802395209581) internal successors, (1068), 720 states have internal predecessors, (1068), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-31 21:59:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1176 transitions. [2024-10-31 21:59:33,595 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1176 transitions. Word has length 45 [2024-10-31 21:59:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:33,595 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 1176 transitions. [2024-10-31 21:59:33,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 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) [2024-10-31 21:59:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1176 transitions. [2024-10-31 21:59:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 21:59:33,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:33,598 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:33,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-31 21:59:33,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-31 21:59:33,799 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:33,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:33,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1968215570, now seen corresponding path program 1 times [2024-10-31 21:59:33,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:33,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276172442] [2024-10-31 21:59:33,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:33,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:34,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:59:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:34,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:59:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:34,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:34,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276172442] [2024-10-31 21:59:34,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276172442] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112499120] [2024-10-31 21:59:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:34,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:34,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:34,027 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:34,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-31 21:59:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:34,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:59:34,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:34,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:34,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112499120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:34,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:34,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-31 21:59:34,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215253375] [2024-10-31 21:59:34,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:34,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:34,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:34,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:34,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:34,156 INFO L87 Difference]: Start difference. First operand 779 states and 1176 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-10-31 21:59:34,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:34,600 INFO L93 Difference]: Finished difference Result 1668 states and 2497 transitions. [2024-10-31 21:59:34,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:34,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 46 [2024-10-31 21:59:34,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:34,605 INFO L225 Difference]: With dead ends: 1668 [2024-10-31 21:59:34,605 INFO L226 Difference]: Without dead ends: 1220 [2024-10-31 21:59:34,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:34,607 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 216 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:34,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 785 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:59:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-10-31 21:59:34,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 876. [2024-10-31 21:59:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 765 states have (on average 1.5869281045751633) internal successors, (1214), 817 states have internal predecessors, (1214), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-31 21:59:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1322 transitions. [2024-10-31 21:59:34,691 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1322 transitions. Word has length 46 [2024-10-31 21:59:34,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:34,692 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1322 transitions. [2024-10-31 21:59:34,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-10-31 21:59:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1322 transitions. [2024-10-31 21:59:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-31 21:59:34,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:34,693 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-10-31 21:59:34,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:34,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-31 21:59:34,894 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:34,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:34,894 INFO L85 PathProgramCache]: Analyzing trace with hash -905180666, now seen corresponding path program 1 times [2024-10-31 21:59:34,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:34,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505204018] [2024-10-31 21:59:34,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:34,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:34,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055098397] [2024-10-31 21:59:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:34,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:34,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:34,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:34,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-31 21:59:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:34,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:34,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:35,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:35,586 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:35,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:35,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505204018] [2024-10-31 21:59:35,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:35,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055098397] [2024-10-31 21:59:35,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055098397] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:35,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 21:59:35,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-10-31 21:59:35,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272652600] [2024-10-31 21:59:35,588 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:35,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 21:59:35,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:35,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 21:59:35,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:59:35,589 INFO L87 Difference]: Start difference. First operand 876 states and 1322 transitions. Second operand has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 21:59:36,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:36,876 INFO L93 Difference]: Finished difference Result 1648 states and 2474 transitions. [2024-10-31 21:59:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 21:59:36,877 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-10-31 21:59:36,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:36,886 INFO L225 Difference]: With dead ends: 1648 [2024-10-31 21:59:36,886 INFO L226 Difference]: Without dead ends: 1645 [2024-10-31 21:59:36,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-10-31 21:59:36,887 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 979 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:36,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 788 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-31 21:59:36,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2024-10-31 21:59:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1121. [2024-10-31 21:59:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1007 states have (on average 1.5938430983118173) internal successors, (1605), 1059 states have internal predecessors, (1605), 57 states have call successors, (57), 4 states have call predecessors, (57), 4 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-31 21:59:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1719 transitions. [2024-10-31 21:59:36,986 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1719 transitions. Word has length 47 [2024-10-31 21:59:36,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:36,987 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1719 transitions. [2024-10-31 21:59:36,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 21:59:36,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1719 transitions. [2024-10-31 21:59:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-31 21:59:36,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:36,990 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-10-31 21:59:37,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:37,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-31 21:59:37,192 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:37,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2004170517, now seen corresponding path program 1 times [2024-10-31 21:59:37,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:37,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779641423] [2024-10-31 21:59:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:37,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:37,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062612486] [2024-10-31 21:59:37,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:37,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:37,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:37,211 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:37,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-31 21:59:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:37,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:37,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:39,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:39,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779641423] [2024-10-31 21:59:39,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:39,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062612486] [2024-10-31 21:59:39,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062612486] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:39,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:39,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-31 21:59:39,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428661356] [2024-10-31 21:59:39,291 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:39,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:39,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:39,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:59:39,292 INFO L87 Difference]: Start difference. First operand 1121 states and 1719 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:39,807 INFO L93 Difference]: Finished difference Result 1558 states and 2383 transitions. [2024-10-31 21:59:39,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2024-10-31 21:59:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:39,819 INFO L225 Difference]: With dead ends: 1558 [2024-10-31 21:59:39,822 INFO L226 Difference]: Without dead ends: 1556 [2024-10-31 21:59:39,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:59:39,824 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 445 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:39,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 499 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2024-10-31 21:59:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1426. [2024-10-31 21:59:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.6133540372670807) internal successors, (2078), 1340 states have internal predecessors, (2078), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-31 21:59:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2240 transitions. [2024-10-31 21:59:39,975 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2240 transitions. Word has length 48 [2024-10-31 21:59:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:39,975 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2240 transitions. [2024-10-31 21:59:39,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2240 transitions. [2024-10-31 21:59:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-31 21:59:39,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:39,976 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2024-10-31 21:59:39,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-31 21:59:40,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:40,181 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:40,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:40,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1999743976, now seen corresponding path program 1 times [2024-10-31 21:59:40,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:40,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072375771] [2024-10-31 21:59:40,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:40,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:40,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100090186] [2024-10-31 21:59:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:40,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:40,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:40,202 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:40,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-31 21:59:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:40,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:40,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:40,664 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:40,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:40,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:40,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072375771] [2024-10-31 21:59:40,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:40,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100090186] [2024-10-31 21:59:40,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100090186] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:40,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:41,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-31 21:59:41,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977939415] [2024-10-31 21:59:41,000 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:41,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:41,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:41,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:41,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:41,001 INFO L87 Difference]: Start difference. First operand 1426 states and 2240 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:59:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:41,477 INFO L93 Difference]: Finished difference Result 1492 states and 2265 transitions. [2024-10-31 21:59:41,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:41,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-10-31 21:59:41,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:41,484 INFO L225 Difference]: With dead ends: 1492 [2024-10-31 21:59:41,484 INFO L226 Difference]: Without dead ends: 1490 [2024-10-31 21:59:41,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:59:41,485 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 514 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:41,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 476 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:59:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2024-10-31 21:59:41,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1426. [2024-10-31 21:59:41,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.6055900621118013) internal successors, (2068), 1340 states have internal predecessors, (2068), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-31 21:59:41,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2230 transitions. [2024-10-31 21:59:41,608 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2230 transitions. Word has length 49 [2024-10-31 21:59:41,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:41,609 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2230 transitions. [2024-10-31 21:59:41,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:59:41,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2230 transitions. [2024-10-31 21:59:41,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 21:59:41,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:41,610 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:41,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:41,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-10-31 21:59:41,814 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-31 21:59:41,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1862521207, now seen corresponding path program 1 times [2024-10-31 21:59:41,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:41,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510436329] [2024-10-31 21:59:41,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:41,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:59:41,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586763001] [2024-10-31 21:59:41,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:41,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:41,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:41,830 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:41,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99759184-d1fc-4fa9-a1b0-529cbab6f504/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-31 21:59:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:41,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:41,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:42,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:43,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:43,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510436329] [2024-10-31 21:59:43,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:59:43,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586763001] [2024-10-31 21:59:43,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586763001] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:43,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:43,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-31 21:59:43,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776451468] [2024-10-31 21:59:43,122 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:43,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:43,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:43,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:43,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:43,123 INFO L87 Difference]: Start difference. First operand 1426 states and 2230 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:59:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:43,597 INFO L93 Difference]: Finished difference Result 1492 states and 2255 transitions. [2024-10-31 21:59:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:59:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2024-10-31 21:59:43,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:43,603 INFO L225 Difference]: With dead ends: 1492 [2024-10-31 21:59:43,604 INFO L226 Difference]: Without dead ends: 1490 [2024-10-31 21:59:43,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:59:43,607 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 592 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:43,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 677 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:59:43,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states.