./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/fermat2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya --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 43c7c57321afe9055366ca260a89f0e4de96718cc528ce2ea2543b13c4af6ed7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:17:04,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:17:04,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:17:04,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:17:04,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:17:04,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:17:04,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:17:04,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:17:04,788 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:17:04,788 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:17:04,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:17:04,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:17:04,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:17:04,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:17:04,791 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:17:04,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:17:04,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:17:04,793 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:17:04,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:17:04,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:17:04,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:17:04,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:17:04,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:17:04,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:17:04,797 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:17:04,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:17:04,798 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:17:04,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:17:04,799 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:17:04,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:17:04,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:17:04,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:17:04,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:17:04,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:17:04,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:17:04,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:17:04,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:17:04,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:17:04,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:17:04,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:17:04,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:17:04,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:17:04,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:17:04,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:17:04,803 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_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c7c57321afe9055366ca260a89f0e4de96718cc528ce2ea2543b13c4af6ed7 [2023-11-29 02:17:05,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:17:05,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:17:05,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:17:05,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:17:05,051 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:17:05,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench/fermat2-ll.c [2023-11-29 02:17:07,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:17:08,016 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:17:08,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/sv-benchmarks/c/nla-digbench/fermat2-ll.c [2023-11-29 02:17:08,023 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/data/e1bcf4237/9e728c633f104c41af4e2581d7b46e7f/FLAG7f02ddc10 [2023-11-29 02:17:08,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/data/e1bcf4237/9e728c633f104c41af4e2581d7b46e7f [2023-11-29 02:17:08,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:17:08,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:17:08,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:17:08,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:17:08,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:17:08,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6501f60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08, skipping insertion in model container [2023-11-29 02:17:08,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,063 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:17:08,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:17:08,211 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:17:08,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:17:08,241 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:17:08,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08 WrapperNode [2023-11-29 02:17:08,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:17:08,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:17:08,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:17:08,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:17:08,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,282 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2023-11-29 02:17:08,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:17:08,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:17:08,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:17:08,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:17:08,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,308 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]. [2023-11-29 02:17:08,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:17:08,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:17:08,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:17:08,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:17:08,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (1/1) ... [2023-11-29 02:17:08,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:17:08,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:08,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:17:08,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:17:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:17:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:17:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:17:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:17:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:17:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:17:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 02:17:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 02:17:08,442 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:17:08,444 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:17:08,955 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:17:08,980 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:17:08,980 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:17:08,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:17:08 BoogieIcfgContainer [2023-11-29 02:17:08,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:17:08,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:17:08,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:17:08,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:17:08,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:17:08" (1/3) ... [2023-11-29 02:17:08,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dca91c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:17:08, skipping insertion in model container [2023-11-29 02:17:08,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:17:08" (2/3) ... [2023-11-29 02:17:08,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dca91c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:17:08, skipping insertion in model container [2023-11-29 02:17:08,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:17:08" (3/3) ... [2023-11-29 02:17:08,991 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll.c [2023-11-29 02:17:09,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:17:09,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-29 02:17:09,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:17:09,064 INFO L357 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, mHoare=true, 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;@4019582d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:17:09,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-29 02:17:09,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 67 states have (on average 1.9253731343283582) internal successors, (129), 123 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:17:09,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-29 02:17:09,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:09,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-29 02:17:09,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:17:09,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:09,080 INFO L85 PathProgramCache]: Analyzing trace with hash 6420, now seen corresponding path program 1 times [2023-11-29 02:17:09,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:09,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516724395] [2023-11-29 02:17:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:09,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:17:09,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:09,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516724395] [2023-11-29 02:17:09,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516724395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:17:09,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:17:09,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:17:09,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497951210] [2023-11-29 02:17:09,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:17:09,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:17:09,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:17:09,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:09,286 INFO L87 Difference]: Start difference. First operand has 130 states, 67 states have (on average 1.9253731343283582) internal successors, (129), 123 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:17:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:09,363 INFO L93 Difference]: Finished difference Result 239 states and 263 transitions. [2023-11-29 02:17:09,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:17:09,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-29 02:17:09,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:09,373 INFO L225 Difference]: With dead ends: 239 [2023-11-29 02:17:09,373 INFO L226 Difference]: Without dead ends: 117 [2023-11-29 02:17:09,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:09,380 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:09,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 109 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:17:09,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-29 02:17:09,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-11-29 02:17:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 111 states have internal predecessors, (113), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:17:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2023-11-29 02:17:09,453 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 2 [2023-11-29 02:17:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:09,454 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2023-11-29 02:17:09,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:17:09,454 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2023-11-29 02:17:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 02:17:09,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:09,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 02:17:09,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:17:09,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:17:09,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:09,456 INFO L85 PathProgramCache]: Analyzing trace with hash 199056, now seen corresponding path program 1 times [2023-11-29 02:17:09,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:09,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080635201] [2023-11-29 02:17:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:09,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:17:09,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080635201] [2023-11-29 02:17:09,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080635201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:17:09,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:17:09,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:17:09,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156418522] [2023-11-29 02:17:09,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:17:09,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:17:09,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:09,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:17:09,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:09,492 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:17:09,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:09,533 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2023-11-29 02:17:09,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:17:09,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 02:17:09,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:09,536 INFO L225 Difference]: With dead ends: 117 [2023-11-29 02:17:09,536 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 02:17:09,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:09,538 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 101 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:09,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 105 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:17:09,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 02:17:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-11-29 02:17:09,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 66 states have (on average 1.6515151515151516) internal successors, (109), 107 states have internal predecessors, (109), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:17:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 115 transitions. [2023-11-29 02:17:09,554 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 115 transitions. Word has length 3 [2023-11-29 02:17:09,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:09,554 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 115 transitions. [2023-11-29 02:17:09,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:17:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 115 transitions. [2023-11-29 02:17:09,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 02:17:09,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:09,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:17:09,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:17:09,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:09,556 INFO L85 PathProgramCache]: Analyzing trace with hash -850025708, now seen corresponding path program 1 times [2023-11-29 02:17:09,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:09,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096740108] [2023-11-29 02:17:09,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:09,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:09,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:09,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060585306] [2023-11-29 02:17:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:09,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:09,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:09,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:09,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:17:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:09,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:17:09,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:17:09,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:17:09,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:09,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096740108] [2023-11-29 02:17:09,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:09,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060585306] [2023-11-29 02:17:09,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060585306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:17:09,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:17:09,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:17:09,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184200902] [2023-11-29 02:17:09,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:17:09,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:17:09,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:09,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:17:09,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:09,697 INFO L87 Difference]: Start difference. First operand 113 states and 115 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:17:09,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:09,730 INFO L93 Difference]: Finished difference Result 113 states and 115 transitions. [2023-11-29 02:17:09,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:17:09,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 02:17:09,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:09,733 INFO L225 Difference]: With dead ends: 113 [2023-11-29 02:17:09,733 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 02:17:09,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:09,735 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 95 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:09,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 105 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:17:09,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 02:17:09,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 02:17:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 66 states have (on average 1.621212121212121) internal successors, (107), 105 states have internal predecessors, (107), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:17:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 113 transitions. [2023-11-29 02:17:09,745 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 113 transitions. Word has length 7 [2023-11-29 02:17:09,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:09,746 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 113 transitions. [2023-11-29 02:17:09,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:17:09,746 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 113 transitions. [2023-11-29 02:17:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 02:17:09,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:09,747 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:17:09,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:17:09,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:09,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:17:09,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:09,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1921465218, now seen corresponding path program 1 times [2023-11-29 02:17:09,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:09,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595144805] [2023-11-29 02:17:09,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:09,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:09,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:09,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300479526] [2023-11-29 02:17:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:09,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:09,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:09,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:09,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:17:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:10,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:17:10,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:17:10,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:17:10,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:10,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595144805] [2023-11-29 02:17:10,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:10,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300479526] [2023-11-29 02:17:10,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300479526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:17:10,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:17:10,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:17:10,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778004884] [2023-11-29 02:17:10,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:17:10,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:17:10,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:10,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:17:10,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:10,065 INFO L87 Difference]: Start difference. First operand 111 states and 113 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-29 02:17:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:10,090 INFO L93 Difference]: Finished difference Result 111 states and 113 transitions. [2023-11-29 02:17:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:17:10,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 24 [2023-11-29 02:17:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:10,092 INFO L225 Difference]: With dead ends: 111 [2023-11-29 02:17:10,092 INFO L226 Difference]: Without dead ends: 109 [2023-11-29 02:17:10,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:10,094 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 86 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:10,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 105 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:17:10,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-29 02:17:10,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-29 02:17:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 66 states have (on average 1.5909090909090908) internal successors, (105), 103 states have internal predecessors, (105), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:17:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 111 transitions. [2023-11-29 02:17:10,101 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 111 transitions. Word has length 24 [2023-11-29 02:17:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:10,103 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 111 transitions. [2023-11-29 02:17:10,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-29 02:17:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 111 transitions. [2023-11-29 02:17:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 02:17:10,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:10,104 INFO L195 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] [2023-11-29 02:17:10,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 02:17:10,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:10,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:17:10,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:10,305 INFO L85 PathProgramCache]: Analyzing trace with hash 564120448, now seen corresponding path program 1 times [2023-11-29 02:17:10,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:10,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61792488] [2023-11-29 02:17:10,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:10,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:10,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:10,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841220696] [2023-11-29 02:17:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:10,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:10,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:10,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:10,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:17:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:10,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:17:10,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:17:10,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:17:10,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:10,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61792488] [2023-11-29 02:17:10,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:10,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841220696] [2023-11-29 02:17:10,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841220696] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:17:10,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:17:10,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 02:17:10,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422282942] [2023-11-29 02:17:10,644 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:10,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:17:10,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:10,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:17:10,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:17:10,645 INFO L87 Difference]: Start difference. First operand 109 states and 111 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:17:10,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:10,827 INFO L93 Difference]: Finished difference Result 109 states and 111 transitions. [2023-11-29 02:17:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:17:10,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 25 [2023-11-29 02:17:10,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:10,829 INFO L225 Difference]: With dead ends: 109 [2023-11-29 02:17:10,829 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 02:17:10,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:17:10,830 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 174 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:17:10,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 182 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:17:10,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 02:17:10,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-29 02:17:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 101 states have internal predecessors, (103), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:17:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 109 transitions. [2023-11-29 02:17:10,839 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 109 transitions. Word has length 25 [2023-11-29 02:17:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:10,840 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 109 transitions. [2023-11-29 02:17:10,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:17:10,840 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 109 transitions. [2023-11-29 02:17:10,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 02:17:10,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:10,841 INFO L195 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] [2023-11-29 02:17:10,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 02:17:11,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:11,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:17:11,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:11,048 INFO L85 PathProgramCache]: Analyzing trace with hash 953873506, now seen corresponding path program 1 times [2023-11-29 02:17:11,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:11,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066734283] [2023-11-29 02:17:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:11,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:11,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:11,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631311810] [2023-11-29 02:17:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:11,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:11,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:11,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:11,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:17:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:11,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:17:11,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:17:11,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:17:11,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:11,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066734283] [2023-11-29 02:17:11,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:11,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631311810] [2023-11-29 02:17:11,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631311810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:17:11,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:17:11,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:17:11,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368626002] [2023-11-29 02:17:11,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:17:11,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:17:11,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:11,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:17:11,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:11,127 INFO L87 Difference]: Start difference. First operand 107 states and 109 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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) [2023-11-29 02:17:11,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:17:11,215 INFO L93 Difference]: Finished difference Result 179 states and 185 transitions. [2023-11-29 02:17:11,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:17:11,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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 [2023-11-29 02:17:11,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:17:11,217 INFO L225 Difference]: With dead ends: 179 [2023-11-29 02:17:11,217 INFO L226 Difference]: Without dead ends: 177 [2023-11-29 02:17:11,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:17:11,219 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 69 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 172 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 [2023-11-29 02:17:11,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 172 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:17:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-29 02:17:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 111. [2023-11-29 02:17:11,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.542857142857143) internal successors, (108), 105 states have internal predecessors, (108), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:17:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 114 transitions. [2023-11-29 02:17:11,232 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 114 transitions. Word has length 27 [2023-11-29 02:17:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:17:11,232 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 114 transitions. [2023-11-29 02:17:11,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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) [2023-11-29 02:17:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 114 transitions. [2023-11-29 02:17:11,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 02:17:11,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:17:11,234 INFO L195 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] [2023-11-29 02:17:11,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 02:17:11,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 02:17:11,440 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:17:11,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:17:11,441 INFO L85 PathProgramCache]: Analyzing trace with hash -494692311, now seen corresponding path program 1 times [2023-11-29 02:17:11,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:17:11,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480040223] [2023-11-29 02:17:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:11,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:17:11,449 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:17:11,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592933872] [2023-11-29 02:17:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:17:11,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:17:11,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:17:11,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:17:11,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:17:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:17:11,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:17:11,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:17:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:17:13,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:17:13,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:17:13,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480040223] [2023-11-29 02:17:13,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:17:13,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592933872] [2023-11-29 02:17:13,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592933872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:17:13,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:17:13,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:17:13,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529215820] [2023-11-29 02:17:13,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:17:13,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:17:13,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:17:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:17:13,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=6, Unknown=1, NotChecked=0, Total=12 [2023-11-29 02:17:13,277 INFO L87 Difference]: Start difference. First operand 111 states and 114 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) [2023-11-29 02:17:15,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:19,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:23,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:29,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:33,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:35,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:37,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:41,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:45,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:49,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:53,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:58,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:17:59,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:02,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:03,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:08,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:10,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:15,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:18,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:22,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:27,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:29,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:33,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:37,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:38,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:42,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:46,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:50,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:55,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:18:59,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:03,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:08,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:12,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:17,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:21,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:27,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:33,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:37,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:42,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:43,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:44,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:48,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:52,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:19:56,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:00,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:05,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:09,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:13,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:17,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:18,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:22,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:26,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:26,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:26,042 INFO L93 Difference]: Finished difference Result 179 states and 183 transitions. [2023-11-29 02:20:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:20:26,044 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 [2023-11-29 02:20:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:26,045 INFO L225 Difference]: With dead ends: 179 [2023-11-29 02:20:26,045 INFO L226 Difference]: Without dead ends: 178 [2023-11-29 02:20:26,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=9, Invalid=10, Unknown=1, NotChecked=0, Total=20 [2023-11-29 02:20:26,046 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 232 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 76 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 192.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 76 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 192.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:26,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 96 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 76 Unknown, 0 Unchecked, 192.7s Time] [2023-11-29 02:20:26,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-29 02:20:26,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 111. [2023-11-29 02:20:26,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.5285714285714285) internal successors, (107), 105 states have internal predecessors, (107), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:20:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 113 transitions. [2023-11-29 02:20:26,055 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 113 transitions. Word has length 28 [2023-11-29 02:20:26,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:26,056 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 113 transitions. [2023-11-29 02:20:26,056 INFO L496 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) [2023-11-29 02:20:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 113 transitions. [2023-11-29 02:20:26,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 02:20:26,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:26,057 INFO L195 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] [2023-11-29 02:20:26,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:20:26,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 02:20:26,260 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:26,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:26,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1342061451, now seen corresponding path program 1 times [2023-11-29 02:20:26,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:26,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661035171] [2023-11-29 02:20:26,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:26,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:26,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:26,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607870706] [2023-11-29 02:20:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:26,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:26,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:26,269 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:26,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:20:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:26,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:20:26,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:20:26,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:20:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:20:26,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:26,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661035171] [2023-11-29 02:20:26,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:26,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607870706] [2023-11-29 02:20:26,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607870706] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:20:26,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:20:26,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 02:20:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394558430] [2023-11-29 02:20:26,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:20:26,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:20:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:26,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:20:26,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:20:26,719 INFO L87 Difference]: Start difference. First operand 111 states and 113 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:20:33,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:35,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:20:35,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:35,904 INFO L93 Difference]: Finished difference Result 178 states and 182 transitions. [2023-11-29 02:20:35,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:20:35,905 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2023-11-29 02:20:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:35,906 INFO L225 Difference]: With dead ends: 178 [2023-11-29 02:20:35,906 INFO L226 Difference]: Without dead ends: 177 [2023-11-29 02:20:35,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:20:35,908 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 435 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:35,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 365 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 230 Invalid, 5 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 02:20:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-29 02:20:35,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 112. [2023-11-29 02:20:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 106 states have internal predecessors, (108), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:20:35,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2023-11-29 02:20:35,917 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 30 [2023-11-29 02:20:35,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:35,917 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2023-11-29 02:20:35,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:20:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2023-11-29 02:20:35,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 02:20:35,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:35,919 INFO L195 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] [2023-11-29 02:20:35,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:20:36,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 02:20:36,120 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:36,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:36,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1230868205, now seen corresponding path program 1 times [2023-11-29 02:20:36,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:36,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497403295] [2023-11-29 02:20:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:36,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:36,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:36,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847223226] [2023-11-29 02:20:36,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:36,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:36,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:36,132 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:36,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:20:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:36,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:20:36,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:20:36,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:20:36,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:36,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497403295] [2023-11-29 02:20:36,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:36,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847223226] [2023-11-29 02:20:36,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847223226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:20:36,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:20:36,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:20:36,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253445502] [2023-11-29 02:20:36,511 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:20:36,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:20:36,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:20:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:20:36,513 INFO L87 Difference]: Start difference. First operand 112 states and 114 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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) [2023-11-29 02:20:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:37,945 INFO L93 Difference]: Finished difference Result 194 states and 198 transitions. [2023-11-29 02:20:37,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:20:37,945 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), 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 32 [2023-11-29 02:20:37,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:37,947 INFO L225 Difference]: With dead ends: 194 [2023-11-29 02:20:37,947 INFO L226 Difference]: Without dead ends: 179 [2023-11-29 02:20:37,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:20:37,948 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 368 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:37,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 218 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 02:20:37,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-29 02:20:37,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 157. [2023-11-29 02:20:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 115 states have (on average 1.5217391304347827) internal successors, (175), 150 states have internal predecessors, (175), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:20:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 183 transitions. [2023-11-29 02:20:37,960 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 183 transitions. Word has length 32 [2023-11-29 02:20:37,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:37,960 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 183 transitions. [2023-11-29 02:20:37,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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) [2023-11-29 02:20:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 183 transitions. [2023-11-29 02:20:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 02:20:37,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:37,961 INFO L195 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] [2023-11-29 02:20:37,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 02:20:38,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:38,162 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:38,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1748341327, now seen corresponding path program 1 times [2023-11-29 02:20:38,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:38,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39398057] [2023-11-29 02:20:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:38,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:38,173 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:38,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36352196] [2023-11-29 02:20:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:38,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:38,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:38,175 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:38,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:20:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:38,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:20:38,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:38,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:20:38,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:38,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39398057] [2023-11-29 02:20:38,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:38,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36352196] [2023-11-29 02:20:38,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36352196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:38,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:38,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:20:38,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093454723] [2023-11-29 02:20:38,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:38,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:20:38,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:38,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:20:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:20:38,247 INFO L87 Difference]: Start difference. First operand 157 states and 183 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-29 02:20:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:38,372 INFO L93 Difference]: Finished difference Result 279 states and 327 transitions. [2023-11-29 02:20:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:20:38,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 34 [2023-11-29 02:20:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:38,374 INFO L225 Difference]: With dead ends: 279 [2023-11-29 02:20:38,375 INFO L226 Difference]: Without dead ends: 250 [2023-11-29 02:20:38,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:20:38,376 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 59 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:38,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 135 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:20:38,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-29 02:20:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 227. [2023-11-29 02:20:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 183 states have (on average 1.4808743169398908) internal successors, (271), 218 states have internal predecessors, (271), 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) [2023-11-29 02:20:38,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 283 transitions. [2023-11-29 02:20:38,400 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 283 transitions. Word has length 34 [2023-11-29 02:20:38,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:38,401 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 283 transitions. [2023-11-29 02:20:38,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-29 02:20:38,401 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 283 transitions. [2023-11-29 02:20:38,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 02:20:38,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:38,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:38,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:20:38,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 02:20:38,604 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:38,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash 86744277, now seen corresponding path program 1 times [2023-11-29 02:20:38,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:38,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284193559] [2023-11-29 02:20:38,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:38,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:38,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:38,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575538549] [2023-11-29 02:20:38,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:38,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:38,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:38,616 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:38,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:20:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:38,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:20:38,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:38,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:20:38,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284193559] [2023-11-29 02:20:38,851 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575538549] [2023-11-29 02:20:38,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575538549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:38,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:38,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:20:38,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371360585] [2023-11-29 02:20:38,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:38,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:20:38,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:38,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:20:38,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:20:38,853 INFO L87 Difference]: Start difference. First operand 227 states and 283 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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) [2023-11-29 02:20:39,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:39,009 INFO L93 Difference]: Finished difference Result 227 states and 283 transitions. [2023-11-29 02:20:39,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:20:39,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 52 [2023-11-29 02:20:39,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:39,011 INFO L225 Difference]: With dead ends: 227 [2023-11-29 02:20:39,011 INFO L226 Difference]: Without dead ends: 223 [2023-11-29 02:20:39,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:20:39,013 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 210 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:39,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 65 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:20:39,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-29 02:20:39,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2023-11-29 02:20:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 183 states have (on average 1.4262295081967213) internal successors, (261), 214 states have internal predecessors, (261), 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) [2023-11-29 02:20:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 273 transitions. [2023-11-29 02:20:39,029 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 273 transitions. Word has length 52 [2023-11-29 02:20:39,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:39,029 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 273 transitions. [2023-11-29 02:20:39,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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) [2023-11-29 02:20:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 273 transitions. [2023-11-29 02:20:39,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 02:20:39,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:39,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:39,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:20:39,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:39,237 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:39,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash 86743957, now seen corresponding path program 1 times [2023-11-29 02:20:39,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:39,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128777557] [2023-11-29 02:20:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:39,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:39,244 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:39,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139336237] [2023-11-29 02:20:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:39,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:39,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:39,246 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:39,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:20:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:39,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:20:39,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:39,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:20:39,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:39,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128777557] [2023-11-29 02:20:39,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:39,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139336237] [2023-11-29 02:20:39,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139336237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:39,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:39,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:20:39,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92402120] [2023-11-29 02:20:39,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:39,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:20:39,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:39,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:20:39,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:20:39,335 INFO L87 Difference]: Start difference. First operand 223 states and 273 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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) [2023-11-29 02:20:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:39,468 INFO L93 Difference]: Finished difference Result 242 states and 274 transitions. [2023-11-29 02:20:39,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:20:39,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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 52 [2023-11-29 02:20:39,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:39,470 INFO L225 Difference]: With dead ends: 242 [2023-11-29 02:20:39,470 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 02:20:39,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:20:39,471 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:39,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 149 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:20:39,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 02:20:39,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 223. [2023-11-29 02:20:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 183 states have (on average 1.4153005464480874) internal successors, (259), 214 states have internal predecessors, (259), 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) [2023-11-29 02:20:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 271 transitions. [2023-11-29 02:20:39,484 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 271 transitions. Word has length 52 [2023-11-29 02:20:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:39,484 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 271 transitions. [2023-11-29 02:20:39,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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) [2023-11-29 02:20:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 271 transitions. [2023-11-29 02:20:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 02:20:39,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:39,486 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:39,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 02:20:39,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:39,687 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:39,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1605894579, now seen corresponding path program 1 times [2023-11-29 02:20:39,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:39,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713383026] [2023-11-29 02:20:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:39,695 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047258547] [2023-11-29 02:20:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:39,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:39,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:39,697 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:39,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:20:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:39,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:20:39,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:39,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:20:39,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:39,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713383026] [2023-11-29 02:20:39,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:39,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047258547] [2023-11-29 02:20:39,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047258547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:39,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:39,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:20:39,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896495564] [2023-11-29 02:20:39,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:39,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:20:39,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:39,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:20:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:20:39,819 INFO L87 Difference]: Start difference. First operand 223 states and 271 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2023-11-29 02:20:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:39,949 INFO L93 Difference]: Finished difference Result 235 states and 283 transitions. [2023-11-29 02:20:39,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:20:39,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 53 [2023-11-29 02:20:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:39,951 INFO L225 Difference]: With dead ends: 235 [2023-11-29 02:20:39,952 INFO L226 Difference]: Without dead ends: 231 [2023-11-29 02:20:39,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:20:39,953 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 136 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:39,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 106 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:20:39,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-29 02:20:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 211. [2023-11-29 02:20:39,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 175 states have (on average 1.3771428571428572) internal successors, (241), 202 states have internal predecessors, (241), 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) [2023-11-29 02:20:39,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 253 transitions. [2023-11-29 02:20:39,965 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 253 transitions. Word has length 53 [2023-11-29 02:20:39,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:39,965 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 253 transitions. [2023-11-29 02:20:39,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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) [2023-11-29 02:20:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 253 transitions. [2023-11-29 02:20:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 02:20:39,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:39,967 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:39,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 02:20:40,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:40,172 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:40,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1605904509, now seen corresponding path program 1 times [2023-11-29 02:20:40,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:40,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608364793] [2023-11-29 02:20:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:40,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:40,201 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:40,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072831080] [2023-11-29 02:20:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:40,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:40,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:40,203 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:40,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:20:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:40,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:20:40,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:40,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:40,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:20:40,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:40,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608364793] [2023-11-29 02:20:40,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:40,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072831080] [2023-11-29 02:20:40,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072831080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:40,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:40,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:20:40,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245313453] [2023-11-29 02:20:40,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:40,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:20:40,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:40,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:20:40,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:20:40,362 INFO L87 Difference]: Start difference. First operand 211 states and 253 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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) [2023-11-29 02:20:40,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:40,464 INFO L93 Difference]: Finished difference Result 211 states and 253 transitions. [2023-11-29 02:20:40,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:20:40,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 53 [2023-11-29 02:20:40,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:40,467 INFO L225 Difference]: With dead ends: 211 [2023-11-29 02:20:40,467 INFO L226 Difference]: Without dead ends: 207 [2023-11-29 02:20:40,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:20:40,468 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:40,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 84 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:20:40,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-29 02:20:40,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-29 02:20:40,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 175 states have (on average 1.32) internal successors, (231), 198 states have internal predecessors, (231), 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) [2023-11-29 02:20:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2023-11-29 02:20:40,484 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 53 [2023-11-29 02:20:40,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:40,484 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2023-11-29 02:20:40,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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) [2023-11-29 02:20:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2023-11-29 02:20:40,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:20:40,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:40,486 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:40,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:20:40,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:40,687 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:40,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash 613683377, now seen corresponding path program 1 times [2023-11-29 02:20:40,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:40,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512266364] [2023-11-29 02:20:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:40,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:40,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:40,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461855890] [2023-11-29 02:20:40,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:40,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:40,697 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:40,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:20:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:40,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:20:40,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:40,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:20:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:40,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:40,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512266364] [2023-11-29 02:20:40,987 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:40,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461855890] [2023-11-29 02:20:40,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461855890] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:20:40,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:20:40,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:20:40,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86537872] [2023-11-29 02:20:40,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:20:40,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:20:40,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:40,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:20:40,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:20:40,990 INFO L87 Difference]: Start difference. First operand 207 states and 243 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:20:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:41,165 INFO L93 Difference]: Finished difference Result 213 states and 250 transitions. [2023-11-29 02:20:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:20:41,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 57 [2023-11-29 02:20:41,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:41,167 INFO L225 Difference]: With dead ends: 213 [2023-11-29 02:20:41,168 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 02:20:41,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:20:41,169 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 273 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:41,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 94 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:20:41,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 02:20:41,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 209. [2023-11-29 02:20:41,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 177 states have (on average 1.310734463276836) internal successors, (232), 200 states have internal predecessors, (232), 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) [2023-11-29 02:20:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 244 transitions. [2023-11-29 02:20:41,182 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 244 transitions. Word has length 57 [2023-11-29 02:20:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:41,183 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 244 transitions. [2023-11-29 02:20:41,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:20:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 244 transitions. [2023-11-29 02:20:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:20:41,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:41,184 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:41,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:20:41,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 02:20:41,386 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:41,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:41,386 INFO L85 PathProgramCache]: Analyzing trace with hash 32746919, now seen corresponding path program 1 times [2023-11-29 02:20:41,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:41,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568035695] [2023-11-29 02:20:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:41,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:41,394 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:41,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45835820] [2023-11-29 02:20:41,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:41,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:41,396 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:41,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:20:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:41,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:20:41,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:41,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:20:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:41,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:41,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568035695] [2023-11-29 02:20:41,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45835820] [2023-11-29 02:20:41,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45835820] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:20:41,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:20:41,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:20:41,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258349385] [2023-11-29 02:20:41,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:20:41,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:20:41,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:41,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:20:41,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:20:41,696 INFO L87 Difference]: Start difference. First operand 209 states and 244 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:20:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:42,112 INFO L93 Difference]: Finished difference Result 305 states and 346 transitions. [2023-11-29 02:20:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:20:42,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 57 [2023-11-29 02:20:42,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:42,115 INFO L225 Difference]: With dead ends: 305 [2023-11-29 02:20:42,115 INFO L226 Difference]: Without dead ends: 303 [2023-11-29 02:20:42,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=187, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:20:42,116 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 572 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:42,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 192 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:20:42,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-29 02:20:42,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 214. [2023-11-29 02:20:42,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 183 states have (on average 1.3005464480874316) internal successors, (238), 205 states have internal predecessors, (238), 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) [2023-11-29 02:20:42,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 250 transitions. [2023-11-29 02:20:42,136 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 250 transitions. Word has length 57 [2023-11-29 02:20:42,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:42,136 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 250 transitions. [2023-11-29 02:20:42,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:20:42,137 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 250 transitions. [2023-11-29 02:20:42,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 02:20:42,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:42,137 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:42,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 02:20:42,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:42,338 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:42,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:42,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1844315578, now seen corresponding path program 1 times [2023-11-29 02:20:42,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:42,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719931296] [2023-11-29 02:20:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:42,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:42,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:42,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484135145] [2023-11-29 02:20:42,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:42,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:42,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:42,347 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:42,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:20:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:42,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:20:42,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:42,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:20:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:42,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:42,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719931296] [2023-11-29 02:20:42,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:42,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484135145] [2023-11-29 02:20:42,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484135145] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:20:42,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:20:42,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:20:42,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093823285] [2023-11-29 02:20:42,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:20:42,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:20:42,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:42,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:20:42,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:20:42,625 INFO L87 Difference]: Start difference. First operand 214 states and 250 transitions. Second operand has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:20:42,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:20:42,859 INFO L93 Difference]: Finished difference Result 251 states and 290 transitions. [2023-11-29 02:20:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:20:42,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 58 [2023-11-29 02:20:42,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:20:42,861 INFO L225 Difference]: With dead ends: 251 [2023-11-29 02:20:42,861 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 02:20:42,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:20:42,862 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 398 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:20:42,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 122 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:20:42,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 02:20:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 219. [2023-11-29 02:20:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 188 states have (on average 1.2872340425531914) internal successors, (242), 210 states have internal predecessors, (242), 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) [2023-11-29 02:20:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 254 transitions. [2023-11-29 02:20:42,882 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 254 transitions. Word has length 58 [2023-11-29 02:20:42,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:20:42,882 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 254 transitions. [2023-11-29 02:20:42,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:20:42,882 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 254 transitions. [2023-11-29 02:20:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 02:20:42,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:20:42,883 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:42,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 02:20:43,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:20:43,084 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:20:43,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:43,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1015154564, now seen corresponding path program 1 times [2023-11-29 02:20:43,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:43,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265831048] [2023-11-29 02:20:43,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:43,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:43,090 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:20:43,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466627018] [2023-11-29 02:20:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:43,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:20:43,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:43,092 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:20:43,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:20:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:43,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:20:43,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:20:46,279 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~R~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|))) (and (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0) (<= .cse0 9223372036854775807)))) is different from true [2023-11-29 02:20:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 3 not checked. [2023-11-29 02:20:46,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:20:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:20:46,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:46,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265831048] [2023-11-29 02:20:46,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:20:46,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466627018] [2023-11-29 02:20:46,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466627018] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:20:46,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:20:46,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:20:46,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296575104] [2023-11-29 02:20:46,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:20:46,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:20:46,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:46,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:20:46,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=49, Unknown=2, NotChecked=14, Total=90 [2023-11-29 02:20:46,436 INFO L87 Difference]: Start difference. First operand 219 states and 254 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:21:00,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:03,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:07,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:11,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:15,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:19,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:23,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:27,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:31,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:33,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:38,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:42,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:46,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:48,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:52,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:21:56,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:00,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:03,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:07,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:11,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:15,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:19,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:21,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:24,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:30,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:34,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:37,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:40,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:44,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:48,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:52,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:57,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:22:59,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:02,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:05,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:09,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:13,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:15,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:20,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:24,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:26,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:30,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:35,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:39,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:43,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:47,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:23:47,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:47,708 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2023-11-29 02:23:47,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:23:47,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 58 [2023-11-29 02:23:47,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:47,711 INFO L225 Difference]: With dead ends: 236 [2023-11-29 02:23:47,711 INFO L226 Difference]: Without dead ends: 235 [2023-11-29 02:23:47,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=54, Invalid=76, Unknown=6, NotChecked=20, Total=156 [2023-11-29 02:23:47,712 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 315 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 14 mSolverCounterUnsat, 55 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 170.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 55 IncrementalHoareTripleChecker+Unknown, 155 IncrementalHoareTripleChecker+Unchecked, 170.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:47,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 151 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 107 Invalid, 55 Unknown, 155 Unchecked, 170.2s Time] [2023-11-29 02:23:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-29 02:23:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 218. [2023-11-29 02:23:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 188 states have (on average 1.2659574468085106) internal successors, (238), 209 states have internal predecessors, (238), 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) [2023-11-29 02:23:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 250 transitions. [2023-11-29 02:23:47,724 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 250 transitions. Word has length 58 [2023-11-29 02:23:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:47,725 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 250 transitions. [2023-11-29 02:23:47,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:23:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 250 transitions. [2023-11-29 02:23:47,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 02:23:47,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:47,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:47,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 02:23:47,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:23:47,926 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:23:47,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:47,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1339208147, now seen corresponding path program 1 times [2023-11-29 02:23:47,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:47,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937642930] [2023-11-29 02:23:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:47,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:47,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:47,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104865467] [2023-11-29 02:23:47,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:47,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:47,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:47,933 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:47,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:23:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:47,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:23:47,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:48,332 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:23:48,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:23:48,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:48,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937642930] [2023-11-29 02:23:48,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:48,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104865467] [2023-11-29 02:23:48,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104865467] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:23:48,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:23:48,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-11-29 02:23:48,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507606010] [2023-11-29 02:23:48,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:48,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:23:48,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:48,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:23:48,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:23:48,429 INFO L87 Difference]: Start difference. First operand 218 states and 250 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:23:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:49,117 INFO L93 Difference]: Finished difference Result 331 states and 369 transitions. [2023-11-29 02:23:49,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:23:49,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 59 [2023-11-29 02:23:49,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:49,120 INFO L225 Difference]: With dead ends: 331 [2023-11-29 02:23:49,120 INFO L226 Difference]: Without dead ends: 330 [2023-11-29 02:23:49,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:23:49,121 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 588 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:49,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 153 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:23:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-29 02:23:49,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 278. [2023-11-29 02:23:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 267 states have internal predecessors, (308), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 02:23:49,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 324 transitions. [2023-11-29 02:23:49,150 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 324 transitions. Word has length 59 [2023-11-29 02:23:49,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:49,151 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 324 transitions. [2023-11-29 02:23:49,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:23:49,151 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 324 transitions. [2023-11-29 02:23:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 02:23:49,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:49,152 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:49,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:23:49,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:49,353 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:23:49,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:49,353 INFO L85 PathProgramCache]: Analyzing trace with hash 605962278, now seen corresponding path program 1 times [2023-11-29 02:23:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896938662] [2023-11-29 02:23:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:49,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:49,360 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:49,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350141043] [2023-11-29 02:23:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:49,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:49,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:49,361 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:49,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:23:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:49,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:23:49,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:23:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:23:49,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:23:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:23:49,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:23:49,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896938662] [2023-11-29 02:23:49,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:23:49,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350141043] [2023-11-29 02:23:49,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350141043] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:23:49,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:23:49,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:23:49,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675340791] [2023-11-29 02:23:49,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:23:49,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:23:49,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:23:49,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:23:49,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:23:49,591 INFO L87 Difference]: Start difference. First operand 278 states and 324 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:23:49,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:23:49,788 INFO L93 Difference]: Finished difference Result 334 states and 382 transitions. [2023-11-29 02:23:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:23:49,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2023-11-29 02:23:49,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:23:49,791 INFO L225 Difference]: With dead ends: 334 [2023-11-29 02:23:49,791 INFO L226 Difference]: Without dead ends: 333 [2023-11-29 02:23:49,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:23:49,792 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 197 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:23:49,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 185 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:23:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-29 02:23:49,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 272. [2023-11-29 02:23:49,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 241 states have (on average 1.2448132780082988) internal successors, (300), 261 states have internal predecessors, (300), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 02:23:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 316 transitions. [2023-11-29 02:23:49,821 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 316 transitions. Word has length 60 [2023-11-29 02:23:49,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:23:49,821 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 316 transitions. [2023-11-29 02:23:49,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:23:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 316 transitions. [2023-11-29 02:23:49,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 02:23:49,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:23:49,823 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:23:49,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 02:23:50,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:50,023 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:23:50,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:23:50,024 INFO L85 PathProgramCache]: Analyzing trace with hash 398773246, now seen corresponding path program 1 times [2023-11-29 02:23:50,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:23:50,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485074777] [2023-11-29 02:23:50,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:50,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:23:50,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:23:50,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1696055649] [2023-11-29 02:23:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:23:50,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:23:50,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:23:50,033 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:23:50,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:23:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:23:50,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:23:50,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:08,530 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:24:24,820 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:24:45,063 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:25:29,345 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:26:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:26:18,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:26:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:26:40,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:26:40,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485074777] [2023-11-29 02:26:40,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:26:40,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696055649] [2023-11-29 02:26:40,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696055649] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:26:40,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:26:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2023-11-29 02:26:40,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667596364] [2023-11-29 02:26:40,213 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:26:40,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 02:26:40,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:26:40,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 02:26:40,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2023-11-29 02:26:40,215 INFO L87 Difference]: Start difference. First operand 272 states and 316 transitions. Second operand has 22 states, 21 states have (on average 5.095238095238095) internal successors, (107), 20 states have internal predecessors, (107), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:26:44,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:26:53,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:26:57,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:01,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:05,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:09,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:13,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:17,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:21,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:26,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:30,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:31,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:34,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:38,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:42,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:44,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:48,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:52,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:56,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:27:58,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:02,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:06,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:08,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:12,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:16,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:20,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:22,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:24,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:28,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:32,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:36,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:28:45,257 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:28:53,852 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:29:01,963 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 50 DAG size of output: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:29:10,365 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 60 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:29:18,513 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 43 DAG size of output: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:29:26,644 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 51 DAG size of output: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:29:35,033 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:29:40,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:29:42,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:29:47,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:29:51,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:29:53,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:29:56,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:56,049 INFO L93 Difference]: Finished difference Result 452 states and 519 transitions. [2023-11-29 02:29:56,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:29:56,049 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.095238095238095) internal successors, (107), 20 states have internal predecessors, (107), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Word has length 62 [2023-11-29 02:29:56,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:56,051 INFO L225 Difference]: With dead ends: 452 [2023-11-29 02:29:56,051 INFO L226 Difference]: Without dead ends: 428 [2023-11-29 02:29:56,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 108.8s TimeCoverageRelationStatistics Valid=288, Invalid=969, Unknown=3, NotChecked=0, Total=1260 [2023-11-29 02:29:56,052 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1082 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 55 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:56,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 246 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 880 Invalid, 27 Unknown, 0 Unchecked, 133.8s Time] [2023-11-29 02:29:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-11-29 02:29:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 321. [2023-11-29 02:29:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 292 states have (on average 1.202054794520548) internal successors, (351), 309 states have internal predecessors, (351), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:29:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 369 transitions. [2023-11-29 02:29:56,078 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 369 transitions. Word has length 62 [2023-11-29 02:29:56,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:56,079 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 369 transitions. [2023-11-29 02:29:56,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.095238095238095) internal successors, (107), 20 states have internal predecessors, (107), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:29:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 369 transitions. [2023-11-29 02:29:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 02:29:56,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:56,080 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:56,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 02:29:56,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:56,280 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:29:56,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:56,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1832636778, now seen corresponding path program 1 times [2023-11-29 02:29:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:56,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745976253] [2023-11-29 02:29:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:56,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:29:56,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119898713] [2023-11-29 02:29:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:56,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:56,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:56,290 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:56,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 02:29:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:56,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:29:56,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:29:56,398 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:29:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:29:56,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:56,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745976253] [2023-11-29 02:29:56,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:29:56,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119898713] [2023-11-29 02:29:56,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119898713] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:29:56,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:29:56,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 02:29:56,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547283857] [2023-11-29 02:29:56,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:29:56,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:29:56,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:56,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:29:56,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:29:56,501 INFO L87 Difference]: Start difference. First operand 321 states and 369 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:29:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:56,804 INFO L93 Difference]: Finished difference Result 625 states and 752 transitions. [2023-11-29 02:29:56,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:29:56,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 64 [2023-11-29 02:29:56,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:56,809 INFO L225 Difference]: With dead ends: 625 [2023-11-29 02:29:56,809 INFO L226 Difference]: Without dead ends: 599 [2023-11-29 02:29:56,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:29:56,810 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 193 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:56,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 258 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:29:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-29 02:29:56,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 530. [2023-11-29 02:29:56,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 503 states have (on average 1.1570576540755466) internal successors, (582), 512 states have internal predecessors, (582), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 02:29:56,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 612 transitions. [2023-11-29 02:29:56,871 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 612 transitions. Word has length 64 [2023-11-29 02:29:56,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:56,871 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 612 transitions. [2023-11-29 02:29:56,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:29:56,872 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 612 transitions. [2023-11-29 02:29:56,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 02:29:56,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:56,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:56,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 02:29:57,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 02:29:57,073 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:29:57,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:57,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1279759888, now seen corresponding path program 1 times [2023-11-29 02:29:57,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:57,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029793720] [2023-11-29 02:29:57,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:57,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:57,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:29:57,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549143603] [2023-11-29 02:29:57,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:57,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:57,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:57,080 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:57,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 02:29:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:57,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:29:57,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:29:57,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:29:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:29:57,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:57,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029793720] [2023-11-29 02:29:57,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:29:57,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549143603] [2023-11-29 02:29:57,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549143603] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:29:57,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:29:57,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:29:57,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375401504] [2023-11-29 02:29:57,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:29:57,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:29:57,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:57,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:29:57,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:29:57,257 INFO L87 Difference]: Start difference. First operand 530 states and 612 transitions. Second operand has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:29:57,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:57,449 INFO L93 Difference]: Finished difference Result 559 states and 630 transitions. [2023-11-29 02:29:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:29:57,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 82 [2023-11-29 02:29:57,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:57,452 INFO L225 Difference]: With dead ends: 559 [2023-11-29 02:29:57,452 INFO L226 Difference]: Without dead ends: 558 [2023-11-29 02:29:57,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:29:57,453 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 160 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:57,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 194 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:29:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-29 02:29:57,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 529. [2023-11-29 02:29:57,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 503 states have (on average 1.1391650099403579) internal successors, (573), 511 states have internal predecessors, (573), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 02:29:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 603 transitions. [2023-11-29 02:29:57,510 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 603 transitions. Word has length 82 [2023-11-29 02:29:57,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:57,510 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 603 transitions. [2023-11-29 02:29:57,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:29:57,511 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 603 transitions. [2023-11-29 02:29:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:29:57,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:57,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:57,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 02:29:57,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 02:29:57,712 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:29:57,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:57,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1964173544, now seen corresponding path program 1 times [2023-11-29 02:29:57,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:57,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031764751] [2023-11-29 02:29:57,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:57,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:57,718 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:29:57,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520700038] [2023-11-29 02:29:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:57,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:57,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:57,720 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:57,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 02:29:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:57,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:29:57,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:29:58,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:29:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:29:58,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:58,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031764751] [2023-11-29 02:29:58,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:29:58,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520700038] [2023-11-29 02:29:58,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520700038] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:29:58,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:29:58,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 02:29:58,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814847414] [2023-11-29 02:29:58,224 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:29:58,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:29:58,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:58,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:29:58,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:29:58,225 INFO L87 Difference]: Start difference. First operand 529 states and 603 transitions. Second operand has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 02:29:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:59,086 INFO L93 Difference]: Finished difference Result 749 states and 836 transitions. [2023-11-29 02:29:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:29:59,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 89 [2023-11-29 02:29:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:59,091 INFO L225 Difference]: With dead ends: 749 [2023-11-29 02:29:59,091 INFO L226 Difference]: Without dead ends: 748 [2023-11-29 02:29:59,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=605, Unknown=0, NotChecked=0, Total=870 [2023-11-29 02:29:59,092 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 774 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:59,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 94 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:29:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-29 02:29:59,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 670. [2023-11-29 02:29:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 639 states have (on average 1.1439749608763694) internal successors, (731), 647 states have internal predecessors, (731), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:29:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 771 transitions. [2023-11-29 02:29:59,171 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 771 transitions. Word has length 89 [2023-11-29 02:29:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:59,172 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 771 transitions. [2023-11-29 02:29:59,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 02:29:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 771 transitions. [2023-11-29 02:29:59,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:29:59,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:59,173 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:59,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 02:29:59,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 02:29:59,379 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:29:59,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:59,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1898361202, now seen corresponding path program 1 times [2023-11-29 02:29:59,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:59,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685951781] [2023-11-29 02:29:59,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:59,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:59,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:29:59,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715699181] [2023-11-29 02:29:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:59,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:59,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:59,392 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:59,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 02:29:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:59,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:29:59,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:29:59,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:29:59,872 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:29:59,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:59,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685951781] [2023-11-29 02:29:59,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:29:59,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715699181] [2023-11-29 02:29:59,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715699181] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:29:59,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:29:59,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 02:29:59,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090878008] [2023-11-29 02:29:59,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:29:59,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:29:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:59,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:29:59,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:29:59,875 INFO L87 Difference]: Start difference. First operand 670 states and 771 transitions. Second operand has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 02:30:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:30:00,335 INFO L93 Difference]: Finished difference Result 723 states and 809 transitions. [2023-11-29 02:30:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:30:00,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 89 [2023-11-29 02:30:00,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:30:00,339 INFO L225 Difference]: With dead ends: 723 [2023-11-29 02:30:00,339 INFO L226 Difference]: Without dead ends: 722 [2023-11-29 02:30:00,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=284, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:30:00,341 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 642 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:30:00,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 205 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:30:00,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-29 02:30:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 678. [2023-11-29 02:30:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 647 states have (on average 1.1313755795981453) internal successors, (732), 655 states have internal predecessors, (732), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 02:30:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 772 transitions. [2023-11-29 02:30:00,410 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 772 transitions. Word has length 89 [2023-11-29 02:30:00,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:30:00,410 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 772 transitions. [2023-11-29 02:30:00,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 02:30:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 772 transitions. [2023-11-29 02:30:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 02:30:00,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:30:00,412 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:30:00,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 02:30:00,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 02:30:00,618 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:30:00,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:30:00,618 INFO L85 PathProgramCache]: Analyzing trace with hash -438222633, now seen corresponding path program 1 times [2023-11-29 02:30:00,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:30:00,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561387978] [2023-11-29 02:30:00,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:30:00,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:30:00,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:30:00,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327409754] [2023-11-29 02:30:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:30:00,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:30:00,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,630 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_429be918-265b-42dc-b560-f3c1b1df5dc6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 02:30:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:30:00,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:30:00,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:30:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 41 refuted. 21 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:30:38,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:31:02,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:02,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561387978] [2023-11-29 02:31:02,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:31:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327409754] [2023-11-29 02:31:02,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327409754] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:31:02,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:31:02,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:31:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95472371] [2023-11-29 02:31:02,961 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:31:02,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:31:02,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:02,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:31:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=332, Unknown=5, NotChecked=0, Total=420 [2023-11-29 02:31:02,964 INFO L87 Difference]: Start difference. First operand 678 states and 772 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:31:07,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:11,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:15,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:19,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:27,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:31,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:35,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:38,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:42,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:50,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:54,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:31:58,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:32:02,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:32:06,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:32:18,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 02:32:22,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]