./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.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_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/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_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/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_2a29d14d-3664-42d5-8b00-b1207ca05c19/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 6730d7e2d0ed6d5662ed2cfed2073e9880e52e7f1f28b9287feb3ffdee545a5a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:48:59,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:48:59,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:48:59,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:48:59,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:48:59,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:48:59,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:48:59,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:48:59,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:48:59,349 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:48:59,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:48:59,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:48:59,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:48:59,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:48:59,352 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:48:59,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:48:59,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:48:59,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:48:59,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:48:59,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:48:59,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:48:59,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:48:59,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:48:59,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:48:59,357 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:48:59,358 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:48:59,358 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:48:59,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:48:59,359 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:48:59,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:48:59,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:48:59,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:48:59,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:48:59,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:48:59,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:48:59,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:48:59,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:48:59,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:48:59,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:48:59,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:48:59,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:48:59,364 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:48:59,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:48:59,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:48:59,364 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_2a29d14d-3664-42d5-8b00-b1207ca05c19/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6730d7e2d0ed6d5662ed2cfed2073e9880e52e7f1f28b9287feb3ffdee545a5a [2023-11-29 03:48:59,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:48:59,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:48:59,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:48:59,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:48:59,633 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:48:59,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c [2023-11-29 03:49:02,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:49:02,663 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:49:02,664 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound50.c [2023-11-29 03:49:02,670 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/data/9157fea40/aaf7df2d15a84b5d8fdfb9e060eff9bf/FLAG8524bffdf [2023-11-29 03:49:02,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/data/9157fea40/aaf7df2d15a84b5d8fdfb9e060eff9bf [2023-11-29 03:49:02,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:49:02,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:49:02,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:49:02,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:49:02,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:49:02,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:02,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215cda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02, skipping insertion in model container [2023-11-29 03:49:02,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:02,722 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:49:02,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:49:02,903 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:49:02,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:49:02,941 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:49:02,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02 WrapperNode [2023-11-29 03:49:02,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:49:02,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:49:02,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:49:02,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:49:02,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:02,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:02,979 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2023-11-29 03:49:02,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:49:02,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:49:02,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:49:02,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:49:02,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:02,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:02,995 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,009 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 03:49:03,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:49:03,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:49:03,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:49:03,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:49:03,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (1/1) ... [2023-11-29 03:49:03,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:49:03,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:03,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:49:03,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:49:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:49:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:49:03,095 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:49:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:49:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:49:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:49:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:49:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:49:03,173 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:49:03,175 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:49:03,405 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:49:03,436 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:49:03,437 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:49:03,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:49:03 BoogieIcfgContainer [2023-11-29 03:49:03,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:49:03,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:49:03,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:49:03,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:49:03,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:49:02" (1/3) ... [2023-11-29 03:49:03,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41aa5829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:49:03, skipping insertion in model container [2023-11-29 03:49:03,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:49:02" (2/3) ... [2023-11-29 03:49:03,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41aa5829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:49:03, skipping insertion in model container [2023-11-29 03:49:03,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:49:03" (3/3) ... [2023-11-29 03:49:03,450 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound50.c [2023-11-29 03:49:03,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:49:03,476 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-29 03:49:03,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:49:03,549 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;@1896b1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:49:03,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-29 03:49:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 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 03:49:03,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 03:49:03,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:03,566 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:03,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:03,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2005083564, now seen corresponding path program 1 times [2023-11-29 03:49:03,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:03,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929186090] [2023-11-29 03:49:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:03,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:03,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:49:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 03:49:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:03,792 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 03:49:03,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:03,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929186090] [2023-11-29 03:49:03,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929186090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:03,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:03,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:49:03,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873931521] [2023-11-29 03:49:03,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:03,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:49:03,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:03,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:49:03,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:49:03,832 INFO L87 Difference]: Start difference. First operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:49:03,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:03,866 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2023-11-29 03:49:03,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:49:03,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 03:49:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:03,879 INFO L225 Difference]: With dead ends: 140 [2023-11-29 03:49:03,879 INFO L226 Difference]: Without dead ends: 68 [2023-11-29 03:49:03,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:49:03,886 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:03,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:49:03,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-29 03:49:03,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-29 03:49:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 62 states have internal predecessors, (64), 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 03:49:03,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2023-11-29 03:49:03,927 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 14 [2023-11-29 03:49:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:03,928 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2023-11-29 03:49:03,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:49:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2023-11-29 03:49:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 03:49:03,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:03,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:03,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:49:03,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:03,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:03,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1246760684, now seen corresponding path program 1 times [2023-11-29 03:49:03,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:03,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875196796] [2023-11-29 03:49:03,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:03,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:49:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 03:49:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:04,069 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 03:49:04,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:04,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875196796] [2023-11-29 03:49:04,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875196796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:04,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:04,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:49:04,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738645746] [2023-11-29 03:49:04,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:04,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:49:04,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:04,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:49:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:49:04,073 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 03:49:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:04,128 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2023-11-29 03:49:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:49:04,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 14 [2023-11-29 03:49:04,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:04,131 INFO L225 Difference]: With dead ends: 90 [2023-11-29 03:49:04,131 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 03:49:04,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:49:04,133 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:04,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 185 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:49:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 03:49:04,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-29 03:49:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 66 states have internal predecessors, (68), 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 03:49:04,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2023-11-29 03:49:04,145 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 14 [2023-11-29 03:49:04,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:04,147 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2023-11-29 03:49:04,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 03:49:04,147 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2023-11-29 03:49:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 03:49:04,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:04,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:04,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:49:04,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:04,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:04,150 INFO L85 PathProgramCache]: Analyzing trace with hash 629682618, now seen corresponding path program 1 times [2023-11-29 03:49:04,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721659903] [2023-11-29 03:49:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:04,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:04,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120774040] [2023-11-29 03:49:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:04,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:04,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:04,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:04,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:49:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:04,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:49:04,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:04,334 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 03:49:04,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:04,427 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 03:49:04,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:04,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721659903] [2023-11-29 03:49:04,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:04,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120774040] [2023-11-29 03:49:04,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120774040] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:49:04,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:49:04,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:49:04,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173434380] [2023-11-29 03:49:04,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:49:04,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:49:04,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:49:04,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:04,433 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:49:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:04,720 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2023-11-29 03:49:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:49:04,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 17 [2023-11-29 03:49:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:04,723 INFO L225 Difference]: With dead ends: 129 [2023-11-29 03:49:04,723 INFO L226 Difference]: Without dead ends: 122 [2023-11-29 03:49:04,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 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 03:49:04,725 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 213 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:04,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 124 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:49:04,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-29 03:49:04,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 99. [2023-11-29 03:49:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 71 states have (on average 1.591549295774648) internal successors, (113), 92 states have internal predecessors, (113), 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 03:49:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2023-11-29 03:49:04,739 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 17 [2023-11-29 03:49:04,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:04,739 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2023-11-29 03:49:04,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:49:04,740 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2023-11-29 03:49:04,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 03:49:04,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:04,741 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:04,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:49:04,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:04,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:04,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:04,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1954675269, now seen corresponding path program 1 times [2023-11-29 03:49:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:04,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91354990] [2023-11-29 03:49:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:04,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:04,954 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:04,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802392061] [2023-11-29 03:49:04,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:04,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:04,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:04,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:04,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:49:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:04,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:49:04,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:05,044 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 03:49:05,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:05,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91354990] [2023-11-29 03:49:05,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802392061] [2023-11-29 03:49:05,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802392061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:05,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:05,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:49:05,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525167776] [2023-11-29 03:49:05,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:05,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:49:05,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:05,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:49:05,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:49:05,048 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:49:05,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:05,231 INFO L93 Difference]: Finished difference Result 110 states and 121 transitions. [2023-11-29 03:49:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:49:05,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 03:49:05,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:05,233 INFO L225 Difference]: With dead ends: 110 [2023-11-29 03:49:05,233 INFO L226 Difference]: Without dead ends: 104 [2023-11-29 03:49:05,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 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 03:49:05,235 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 76 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:05,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 63 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:49:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-29 03:49:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-11-29 03:49:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 91 states have internal predecessors, (105), 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 03:49:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2023-11-29 03:49:05,248 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 18 [2023-11-29 03:49:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:05,248 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2023-11-29 03:49:05,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:49:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2023-11-29 03:49:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:49:05,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:05,254 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:05,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:49:05,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:05,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:05,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:05,456 INFO L85 PathProgramCache]: Analyzing trace with hash -564284930, now seen corresponding path program 1 times [2023-11-29 03:49:05,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:05,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912903856] [2023-11-29 03:49:05,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:05,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:05,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:05,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781318573] [2023-11-29 03:49:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:05,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:05,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:05,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:05,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:49:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:05,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:49:05,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:05,623 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 03:49:05,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:05,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:05,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912903856] [2023-11-29 03:49:05,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:05,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781318573] [2023-11-29 03:49:05,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781318573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:05,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:05,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:49:05,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138796366] [2023-11-29 03:49:05,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:05,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:49:05,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:49:05,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:49:05,627 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:49:05,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:05,756 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2023-11-29 03:49:05,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:49:05,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-29 03:49:05,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:05,758 INFO L225 Difference]: With dead ends: 104 [2023-11-29 03:49:05,759 INFO L226 Difference]: Without dead ends: 102 [2023-11-29 03:49:05,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:49:05,760 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 89 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:05,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 67 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:49:05,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-29 03:49:05,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2023-11-29 03:49:05,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 91 states have internal predecessors, (103), 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 03:49:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2023-11-29 03:49:05,772 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 21 [2023-11-29 03:49:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:05,772 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2023-11-29 03:49:05,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:49:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2023-11-29 03:49:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 03:49:05,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:05,774 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:05,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:49:05,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:05,974 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:05,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:05,975 INFO L85 PathProgramCache]: Analyzing trace with hash -312963585, now seen corresponding path program 1 times [2023-11-29 03:49:05,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:05,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063160289] [2023-11-29 03:49:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:05,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:05,985 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103810291] [2023-11-29 03:49:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:05,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:05,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:05,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:05,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:49:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:06,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:49:06,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:06,151 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 03:49:06,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:06,272 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 03:49:06,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063160289] [2023-11-29 03:49:06,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103810291] [2023-11-29 03:49:06,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103810291] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:49:06,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:49:06,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-29 03:49:06,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156940015] [2023-11-29 03:49:06,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:06,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:49:06,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:06,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:49:06,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:06,275 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 03:49:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:06,365 INFO L93 Difference]: Finished difference Result 104 states and 116 transitions. [2023-11-29 03:49:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:49:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 22 [2023-11-29 03:49:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:06,367 INFO L225 Difference]: With dead ends: 104 [2023-11-29 03:49:06,367 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 03:49:06,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:06,368 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 25 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:06,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 80 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:49:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 03:49:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2023-11-29 03:49:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.4366197183098592) internal successors, (102), 91 states have internal predecessors, (102), 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 03:49:06,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2023-11-29 03:49:06,379 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 22 [2023-11-29 03:49:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:06,379 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2023-11-29 03:49:06,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 03:49:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2023-11-29 03:49:06,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 03:49:06,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:06,381 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 03:49:06,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:49:06,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 03:49:06,584 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:06,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash -110292447, now seen corresponding path program 1 times [2023-11-29 03:49:06,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:06,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643583335] [2023-11-29 03:49:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:06,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:06,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:06,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427486808] [2023-11-29 03:49:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:06,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:06,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:06,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:06,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:49:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:06,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:49:06,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:06,779 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 03:49:06,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:06,925 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 03:49:06,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:06,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643583335] [2023-11-29 03:49:06,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:06,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427486808] [2023-11-29 03:49:06,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427486808] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:49:06,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:49:06,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-29 03:49:06,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621852045] [2023-11-29 03:49:06,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:06,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:49:06,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:06,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:49:06,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:06,929 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 03:49:07,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:07,035 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2023-11-29 03:49:07,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:49:07,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 03:49:07,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:07,037 INFO L225 Difference]: With dead ends: 104 [2023-11-29 03:49:07,037 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 03:49:07,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:07,039 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 37 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:07,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 64 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:49:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 03:49:07,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2023-11-29 03:49:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.4225352112676057) internal successors, (101), 91 states have internal predecessors, (101), 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 03:49:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2023-11-29 03:49:07,050 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 24 [2023-11-29 03:49:07,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:07,051 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2023-11-29 03:49:07,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 03:49:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2023-11-29 03:49:07,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:49:07,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:07,053 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] [2023-11-29 03:49:07,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:49:07,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 03:49:07,259 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:07,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash 697166744, now seen corresponding path program 1 times [2023-11-29 03:49:07,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:07,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148861497] [2023-11-29 03:49:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:07,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:07,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:07,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848919262] [2023-11-29 03:49:07,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:07,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:07,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:07,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:07,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:49:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:07,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:49:07,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:07,338 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 03:49:07,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:07,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:07,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148861497] [2023-11-29 03:49:07,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:07,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848919262] [2023-11-29 03:49:07,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848919262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:07,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:07,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:49:07,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127631688] [2023-11-29 03:49:07,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:07,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:49:07,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:07,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:49:07,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:49:07,342 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 03:49:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:07,353 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2023-11-29 03:49:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:49:07,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 31 [2023-11-29 03:49:07,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:07,355 INFO L225 Difference]: With dead ends: 98 [2023-11-29 03:49:07,355 INFO L226 Difference]: Without dead ends: 97 [2023-11-29 03:49:07,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 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 03:49:07,356 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 36 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:07,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 69 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:49:07,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-29 03:49:07,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-29 03:49:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 90 states have internal predecessors, (99), 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 03:49:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2023-11-29 03:49:07,364 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 31 [2023-11-29 03:49:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:07,365 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2023-11-29 03:49:07,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 03:49:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2023-11-29 03:49:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 03:49:07,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:07,366 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 03:49:07,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:49:07,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:07,567 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:07,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:07,568 INFO L85 PathProgramCache]: Analyzing trace with hash 137332659, now seen corresponding path program 1 times [2023-11-29 03:49:07,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:07,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832361310] [2023-11-29 03:49:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:07,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:07,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:07,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886593196] [2023-11-29 03:49:07,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:07,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:07,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:07,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:07,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:49:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:07,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:49:07,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:07,660 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 03:49:07,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:07,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:07,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832361310] [2023-11-29 03:49:07,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:07,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886593196] [2023-11-29 03:49:07,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886593196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:07,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:07,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:49:07,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631327455] [2023-11-29 03:49:07,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:07,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:49:07,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:49:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:49:07,664 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 03:49:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:07,685 INFO L93 Difference]: Finished difference Result 104 states and 112 transitions. [2023-11-29 03:49:07,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:49:07,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 32 [2023-11-29 03:49:07,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:07,686 INFO L225 Difference]: With dead ends: 104 [2023-11-29 03:49:07,687 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 03:49:07,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 03:49:07,688 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 11 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:07,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 116 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:49:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 03:49:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2023-11-29 03:49:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.380281690140845) internal successors, (98), 90 states have internal predecessors, (98), 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 03:49:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2023-11-29 03:49:07,697 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 32 [2023-11-29 03:49:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:07,698 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2023-11-29 03:49:07,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 03:49:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2023-11-29 03:49:07,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:49:07,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:07,700 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] [2023-11-29 03:49:07,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 03:49:07,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:07,901 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:07,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:07,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2000227819, now seen corresponding path program 1 times [2023-11-29 03:49:07,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:07,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801882592] [2023-11-29 03:49:07,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:07,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:07,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:07,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045340280] [2023-11-29 03:49:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:07,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:07,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:07,914 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:07,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:49:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:07,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:49:07,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:09,638 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 03:49:09,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:09,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801882592] [2023-11-29 03:49:09,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045340280] [2023-11-29 03:49:09,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045340280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:09,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:09,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:49:09,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037357097] [2023-11-29 03:49:09,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:09,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:49:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:49:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2023-11-29 03:49:09,641 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 03:49:15,293 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 03:49:19,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:23,297 WARN L539 Checker$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 03:49:27,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:34,323 WARN L539 Checker$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 03:49:35,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:35,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:35,567 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2023-11-29 03:49:35,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:49:35,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 36 [2023-11-29 03:49:35,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:35,568 INFO L225 Difference]: With dead ends: 99 [2023-11-29 03:49:35,568 INFO L226 Difference]: Without dead ends: 98 [2023-11-29 03:49:35,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=18, Invalid=23, Unknown=1, NotChecked=0, Total=42 [2023-11-29 03:49:35,569 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 38 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:35,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 106 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 10 Unknown, 0 Unchecked, 25.7s Time] [2023-11-29 03:49:35,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-29 03:49:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-29 03:49:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.375) internal successors, (99), 91 states have internal predecessors, (99), 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 03:49:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2023-11-29 03:49:35,575 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 36 [2023-11-29 03:49:35,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:35,575 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2023-11-29 03:49:35,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 03:49:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2023-11-29 03:49:35,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 03:49:35,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:35,576 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] [2023-11-29 03:49:35,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:49:35,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:49:35,777 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:35,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:35,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1877520141, now seen corresponding path program 1 times [2023-11-29 03:49:35,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:35,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541948977] [2023-11-29 03:49:35,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:35,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:35,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:35,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174600567] [2023-11-29 03:49:35,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:35,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:35,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:35,787 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:35,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:49:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:35,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:49:35,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:35,917 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 03:49:35,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:35,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:35,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541948977] [2023-11-29 03:49:35,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:35,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174600567] [2023-11-29 03:49:35,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174600567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:35,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:35,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:49:35,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184697212] [2023-11-29 03:49:35,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:35,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:49:35,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:35,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:49:35,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:49:35,921 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 03:49:39,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:40,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:40,121 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2023-11-29 03:49:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:49:40,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 37 [2023-11-29 03:49:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:40,123 INFO L225 Difference]: With dead ends: 110 [2023-11-29 03:49:40,123 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 03:49:40,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:49:40,124 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 24 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:40,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 79 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 03:49:40,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 03:49:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2023-11-29 03:49:40,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 97 states have internal predecessors, (108), 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 03:49:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 116 transitions. [2023-11-29 03:49:40,132 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 116 transitions. Word has length 37 [2023-11-29 03:49:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:40,132 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 116 transitions. [2023-11-29 03:49:40,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 03:49:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 116 transitions. [2023-11-29 03:49:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 03:49:40,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:40,134 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] [2023-11-29 03:49:40,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:49:40,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:40,334 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:40,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1363314110, now seen corresponding path program 1 times [2023-11-29 03:49:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:40,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755657471] [2023-11-29 03:49:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:40,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:40,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423719943] [2023-11-29 03:49:40,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:40,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:40,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:40,344 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:40,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:49:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:40,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:49:40,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:40,570 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 03:49:40,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:40,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:40,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755657471] [2023-11-29 03:49:40,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:40,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423719943] [2023-11-29 03:49:40,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423719943] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:49:40,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:49:40,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:49:40,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750468635] [2023-11-29 03:49:40,682 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:49:40,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:49:40,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:40,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:49:40,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:40,684 INFO L87 Difference]: Start difference. First operand 104 states and 116 transitions. Second operand has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:49:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:40,972 INFO L93 Difference]: Finished difference Result 104 states and 116 transitions. [2023-11-29 03:49:40,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:49:40,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2023-11-29 03:49:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:40,973 INFO L225 Difference]: With dead ends: 104 [2023-11-29 03:49:40,973 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 03:49:40,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:49:40,974 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:40,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 91 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:49:40,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 03:49:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-11-29 03:49:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 96 states have internal predecessors, (106), 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 03:49:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 114 transitions. [2023-11-29 03:49:40,981 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 114 transitions. Word has length 37 [2023-11-29 03:49:40,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:40,982 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 114 transitions. [2023-11-29 03:49:40,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:49:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 114 transitions. [2023-11-29 03:49:40,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 03:49:40,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:40,983 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] [2023-11-29 03:49:40,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:49:41,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:41,184 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:41,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1926417879, now seen corresponding path program 1 times [2023-11-29 03:49:41,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:41,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616690183] [2023-11-29 03:49:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:41,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:41,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843455823] [2023-11-29 03:49:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:41,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:41,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:41,191 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:41,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:49:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:41,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:49:41,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:41,284 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 03:49:41,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:41,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:41,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616690183] [2023-11-29 03:49:41,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:41,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843455823] [2023-11-29 03:49:41,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843455823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:41,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:41,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:49:41,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306374281] [2023-11-29 03:49:41,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:41,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:49:41,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:41,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:49:41,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:49:41,287 INFO L87 Difference]: Start difference. First operand 103 states and 114 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 03:49:45,492 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 03:49:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:45,927 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2023-11-29 03:49:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:49:45,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 38 [2023-11-29 03:49:45,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:45,929 INFO L225 Difference]: With dead ends: 108 [2023-11-29 03:49:45,929 INFO L226 Difference]: Without dead ends: 99 [2023-11-29 03:49:45,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:49:45,930 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 23 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:45,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 81 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 03:49:45,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-29 03:49:45,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2023-11-29 03:49:45,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 89 states have internal predecessors, (97), 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 03:49:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2023-11-29 03:49:45,936 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 38 [2023-11-29 03:49:45,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:45,936 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2023-11-29 03:49:45,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 03:49:45,936 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2023-11-29 03:49:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 03:49:45,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:45,937 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] [2023-11-29 03:49:45,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:49:46,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:46,138 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:46,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash -686935463, now seen corresponding path program 1 times [2023-11-29 03:49:46,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:46,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047515061] [2023-11-29 03:49:46,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:46,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:46,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220496349] [2023-11-29 03:49:46,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:46,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:46,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:46,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:46,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:49:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:46,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:49:46,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:46,363 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 03:49:46,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:46,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:46,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047515061] [2023-11-29 03:49:46,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:46,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220496349] [2023-11-29 03:49:46,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220496349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:49:46,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:49:46,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:49:46,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119370024] [2023-11-29 03:49:46,562 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:49:46,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:49:46,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:49:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:46,564 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:49:46,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:46,870 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2023-11-29 03:49:46,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:49:46,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2023-11-29 03:49:46,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:46,872 INFO L225 Difference]: With dead ends: 97 [2023-11-29 03:49:46,872 INFO L226 Difference]: Without dead ends: 96 [2023-11-29 03:49:46,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:49:46,873 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 51 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:46,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 108 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:49:46,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-29 03:49:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-29 03:49:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 89 states have internal predecessors, (96), 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 03:49:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2023-11-29 03:49:46,880 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 38 [2023-11-29 03:49:46,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:46,880 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2023-11-29 03:49:46,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:49:46,881 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2023-11-29 03:49:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 03:49:46,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:46,882 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] [2023-11-29 03:49:46,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 03:49:47,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:49:47,087 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:47,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1279984923, now seen corresponding path program 1 times [2023-11-29 03:49:47,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:47,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368750828] [2023-11-29 03:49:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:47,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:47,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:47,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178570855] [2023-11-29 03:49:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:47,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:47,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:47,096 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:47,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:49:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:47,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:49:47,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:49:47,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:49:47,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368750828] [2023-11-29 03:49:47,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178570855] [2023-11-29 03:49:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178570855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:49:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:49:47,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:49:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274960355] [2023-11-29 03:49:47,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:47,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:49:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:47,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:49:47,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:49:47,190 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:49:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:47,226 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2023-11-29 03:49:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:49:47,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 03:49:47,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:47,229 INFO L225 Difference]: With dead ends: 96 [2023-11-29 03:49:47,229 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 03:49:47,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:49:47,230 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:47,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 112 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:49:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 03:49:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-11-29 03:49:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 88 states have internal predecessors, (94), 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 03:49:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2023-11-29 03:49:47,236 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 40 [2023-11-29 03:49:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:47,236 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2023-11-29 03:49:47,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:49:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2023-11-29 03:49:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 03:49:47,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:47,237 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] [2023-11-29 03:49:47,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:49:47,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:49:47,438 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:47,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:47,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1024826993, now seen corresponding path program 1 times [2023-11-29 03:49:47,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:47,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197569669] [2023-11-29 03:49:47,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:47,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:47,446 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:47,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981949403] [2023-11-29 03:49:47,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:47,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:47,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:47,447 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:47,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:49:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:47,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:49:47,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:47,565 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 03:49:47,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:47,633 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 03:49:47,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197569669] [2023-11-29 03:49:47,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981949403] [2023-11-29 03:49:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981949403] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:49:47,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:49:47,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 03:49:47,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077756108] [2023-11-29 03:49:47,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:49:47,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:49:47,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:49:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:49:47,635 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:49:47,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:47,749 INFO L93 Difference]: Finished difference Result 208 states and 217 transitions. [2023-11-29 03:49:47,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:49:47,750 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 41 [2023-11-29 03:49:47,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:47,752 INFO L225 Difference]: With dead ends: 208 [2023-11-29 03:49:47,752 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 03:49:47,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:49:47,754 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:47,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 338 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:49:47,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 03:49:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 146. [2023-11-29 03:49:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 118 states have (on average 1.3559322033898304) internal successors, (160), 134 states have internal predecessors, (160), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:49:47,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2023-11-29 03:49:47,765 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 41 [2023-11-29 03:49:47,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:47,766 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2023-11-29 03:49:47,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:49:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2023-11-29 03:49:47,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:49:47,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:47,767 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:47,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:49:47,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:49:47,968 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:47,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1993457218, now seen corresponding path program 1 times [2023-11-29 03:49:47,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:47,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978211970] [2023-11-29 03:49:47,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:47,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:47,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:47,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12144620] [2023-11-29 03:49:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:47,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:47,978 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:47,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:49:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:48,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:49:48,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:48,361 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:49:48,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:48,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:48,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978211970] [2023-11-29 03:49:48,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:48,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12144620] [2023-11-29 03:49:48,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12144620] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:49:48,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:49:48,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:49:48,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259577000] [2023-11-29 03:49:48,836 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:49:48,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:49:48,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:49:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:49:48,837 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:49:49,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:49,315 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2023-11-29 03:49:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:49:49,315 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2023-11-29 03:49:49,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:49,317 INFO L225 Difference]: With dead ends: 159 [2023-11-29 03:49:49,317 INFO L226 Difference]: Without dead ends: 154 [2023-11-29 03:49:49,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:49:49,318 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 77 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:49,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 152 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:49:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-29 03:49:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2023-11-29 03:49:49,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 122 states have (on average 1.3114754098360655) internal successors, (160), 138 states have internal predecessors, (160), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:49:49,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 172 transitions. [2023-11-29 03:49:49,326 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 172 transitions. Word has length 44 [2023-11-29 03:49:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:49,326 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 172 transitions. [2023-11-29 03:49:49,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:49:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 172 transitions. [2023-11-29 03:49:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 03:49:49,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:49,327 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] [2023-11-29 03:49:49,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:49:49,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:49:49,528 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:49,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:49,529 INFO L85 PathProgramCache]: Analyzing trace with hash 571234327, now seen corresponding path program 1 times [2023-11-29 03:49:49,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:49,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107590382] [2023-11-29 03:49:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:49,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:49,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:49,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287634778] [2023-11-29 03:49:49,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:49,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:49,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:49,541 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:49,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:49:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:49,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:49:49,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:49:49,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:49:50,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:50,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107590382] [2023-11-29 03:49:50,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:50,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287634778] [2023-11-29 03:49:50,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287634778] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:49:50,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:49:50,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-29 03:49:50,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301915826] [2023-11-29 03:49:50,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:49:50,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:49:50,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:50,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:49:50,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:49:50,269 INFO L87 Difference]: Start difference. First operand 150 states and 172 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:49:51,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:51,050 INFO L93 Difference]: Finished difference Result 151 states and 172 transitions. [2023-11-29 03:49:51,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:49:51,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-29 03:49:51,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:51,052 INFO L225 Difference]: With dead ends: 151 [2023-11-29 03:49:51,053 INFO L226 Difference]: Without dead ends: 150 [2023-11-29 03:49:51,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:49:51,054 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 78 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:51,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 128 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:49:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-29 03:49:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2023-11-29 03:49:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 122 states have (on average 1.2868852459016393) internal successors, (157), 137 states have internal predecessors, (157), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:49:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2023-11-29 03:49:51,065 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 47 [2023-11-29 03:49:51,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:51,066 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2023-11-29 03:49:51,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:49:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2023-11-29 03:49:51,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 03:49:51,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:51,067 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:51,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:49:51,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:49:51,274 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:49:51,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:51,274 INFO L85 PathProgramCache]: Analyzing trace with hash 528395014, now seen corresponding path program 1 times [2023-11-29 03:49:51,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:49:51,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825021425] [2023-11-29 03:49:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:51,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:49:51,281 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:49:51,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361623397] [2023-11-29 03:49:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:49:51,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:49:51,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:49:51,283 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:49:51,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:49:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:49:51,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:49:51,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:49:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:49:53,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:49:56,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:49:56,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825021425] [2023-11-29 03:49:56,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:49:56,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361623397] [2023-11-29 03:49:56,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361623397] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:49:56,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:49:56,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:49:56,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121757451] [2023-11-29 03:49:56,737 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:49:56,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:49:56,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:49:56,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:49:56,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:49:56,738 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:50:00,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:06,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:10,486 WARN L539 Checker$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 03:50:14,487 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 [0] [2023-11-29 03:50:14,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:50:14,497 INFO L93 Difference]: Finished difference Result 150 states and 169 transitions. [2023-11-29 03:50:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:50:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2023-11-29 03:50:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:50:14,499 INFO L225 Difference]: With dead ends: 150 [2023-11-29 03:50:14,499 INFO L226 Difference]: Without dead ends: 143 [2023-11-29 03:50:14,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:50:14,500 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 87 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:50:14,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 197 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 322 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2023-11-29 03:50:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-29 03:50:14,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2023-11-29 03:50:14,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.1779661016949152) internal successors, (139), 127 states have internal predecessors, (139), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:50:14,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 151 transitions. [2023-11-29 03:50:14,508 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 151 transitions. Word has length 48 [2023-11-29 03:50:14,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:50:14,508 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 151 transitions. [2023-11-29 03:50:14,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:50:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 151 transitions. [2023-11-29 03:50:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 03:50:14,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:50:14,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:50:14,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:50:14,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:14,710 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:50:14,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:50:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1029064698, now seen corresponding path program 1 times [2023-11-29 03:50:14,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:50:14,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729156124] [2023-11-29 03:50:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:14,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:50:14,722 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:50:14,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207690015] [2023-11-29 03:50:14,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:14,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:14,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:50:14,723 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:50:14,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:50:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:50:14,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:50:14,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:50:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:50:14,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:50:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:50:14,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:50:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729156124] [2023-11-29 03:50:14,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:50:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207690015] [2023-11-29 03:50:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207690015] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:50:14,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:50:14,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 03:50:14,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425147972] [2023-11-29 03:50:14,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:50:14,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:50:14,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:50:14,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:50:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:50:14,871 INFO L87 Difference]: Start difference. First operand 139 states and 151 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 03:50:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:50:14,913 INFO L93 Difference]: Finished difference Result 204 states and 214 transitions. [2023-11-29 03:50:14,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:50:14,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 58 [2023-11-29 03:50:14,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:50:14,915 INFO L225 Difference]: With dead ends: 204 [2023-11-29 03:50:14,915 INFO L226 Difference]: Without dead ends: 203 [2023-11-29 03:50:14,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:50:14,916 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 47 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:50:14,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 213 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:50:14,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-29 03:50:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 152. [2023-11-29 03:50:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 130 states have (on average 1.1692307692307693) internal successors, (152), 139 states have internal predecessors, (152), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:50:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 166 transitions. [2023-11-29 03:50:14,925 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 166 transitions. Word has length 58 [2023-11-29 03:50:14,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:50:14,925 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 166 transitions. [2023-11-29 03:50:14,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 03:50:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 166 transitions. [2023-11-29 03:50:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 03:50:14,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:50:14,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:50:14,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:50:15,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:15,127 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:50:15,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:50:15,127 INFO L85 PathProgramCache]: Analyzing trace with hash -649190710, now seen corresponding path program 1 times [2023-11-29 03:50:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:50:15,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697087828] [2023-11-29 03:50:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:15,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:50:15,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:50:15,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513684563] [2023-11-29 03:50:15,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:15,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:15,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:50:15,136 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:50:15,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:50:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:50:15,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:50:15,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:50:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:50:15,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:50:15,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:50:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697087828] [2023-11-29 03:50:15,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:50:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513684563] [2023-11-29 03:50:15,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513684563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:50:15,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:50:15,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:50:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770278625] [2023-11-29 03:50:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:50:15,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:50:15,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:50:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:50:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:50:15,236 INFO L87 Difference]: Start difference. First operand 152 states and 166 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:50:15,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:50:15,965 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2023-11-29 03:50:15,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:50:15,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2023-11-29 03:50:15,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:50:15,967 INFO L225 Difference]: With dead ends: 152 [2023-11-29 03:50:15,967 INFO L226 Difference]: Without dead ends: 151 [2023-11-29 03:50:15,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:50:15,968 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 39 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:50:15,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 70 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:50:15,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-29 03:50:15,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-29 03:50:15,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 130 states have (on average 1.1538461538461537) internal successors, (150), 138 states have internal predecessors, (150), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:50:15,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 164 transitions. [2023-11-29 03:50:15,977 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 164 transitions. Word has length 61 [2023-11-29 03:50:15,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:50:15,978 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 164 transitions. [2023-11-29 03:50:15,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:50:15,978 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 164 transitions. [2023-11-29 03:50:15,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:50:15,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:50:15,979 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, 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 03:50:15,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:50:16,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 03:50:16,179 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:50:16,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:50:16,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1349924572, now seen corresponding path program 1 times [2023-11-29 03:50:16,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:50:16,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686854550] [2023-11-29 03:50:16,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:16,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:50:16,187 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:50:16,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450576157] [2023-11-29 03:50:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:16,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:16,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:50:16,188 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:50:16,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:50:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:50:16,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:50:16,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:50:20,432 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_80| Int) (|ULTIMATE.start_main_~z~0#1| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~x~0#1_80| |ULTIMATE.start_main_~z~0#1|))) (and (<= (+ |v_ULTIMATE.start_main_~x~0#1_80| |c_ULTIMATE.start_main_~x~0#1|) .cse0) (exists ((|v_ULTIMATE.start_main_~y~0#1_52| Int)) (let ((.cse1 (* |v_ULTIMATE.start_main_~y~0#1_52| |ULTIMATE.start_main_~z~0#1|))) (and (<= .cse1 9223372036854775807) (<= (+ .cse0 1) (+ |v_ULTIMATE.start_main_~x~0#1_80| .cse1)))))))) is different from true [2023-11-29 03:50:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 03:50:20,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:50:20,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:50:20,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686854550] [2023-11-29 03:50:20,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:50:20,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450576157] [2023-11-29 03:50:20,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450576157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:50:20,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:50:20,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:50:20,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463586596] [2023-11-29 03:50:20,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:50:20,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:50:20,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:50:20,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:50:20,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2023-11-29 03:50:20,457 INFO L87 Difference]: Start difference. First operand 151 states and 164 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:50:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:50:26,480 INFO L93 Difference]: Finished difference Result 152 states and 164 transitions. [2023-11-29 03:50:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:50:26,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2023-11-29 03:50:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:50:26,482 INFO L225 Difference]: With dead ends: 152 [2023-11-29 03:50:26,482 INFO L226 Difference]: Without dead ends: 145 [2023-11-29 03:50:26,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=22, Invalid=52, Unknown=2, NotChecked=14, Total=90 [2023-11-29 03:50:26,483 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 41 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:50:26,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 172 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 79 Unchecked, 1.7s Time] [2023-11-29 03:50:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-29 03:50:26,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-29 03:50:26,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 124 states have (on average 1.1290322580645162) internal successors, (140), 132 states have internal predecessors, (140), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:50:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2023-11-29 03:50:26,496 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 62 [2023-11-29 03:50:26,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:50:26,497 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2023-11-29 03:50:26,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:50:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2023-11-29 03:50:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:50:26,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:50:26,498 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:50:26,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:50:26,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 03:50:26,702 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:50:26,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:50:26,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1879007584, now seen corresponding path program 1 times [2023-11-29 03:50:26,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:50:26,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211214724] [2023-11-29 03:50:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:26,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:50:26,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:50:26,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386325350] [2023-11-29 03:50:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:26,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:26,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:50:26,733 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:50:26,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:50:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:50:26,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:50:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:50:28,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:50:28,303 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:50:28,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-29 03:50:28,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-29 03:50:28,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-29 03:50:28,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-29 03:50:28,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-29 03:50:28,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-29 03:50:28,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-29 03:50:28,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-29 03:50:28,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-29 03:50:28,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-29 03:50:28,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-29 03:50:28,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-29 03:50:28,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-11-29 03:50:28,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 26 remaining) [2023-11-29 03:50:28,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-29 03:50:28,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-29 03:50:28,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-29 03:50:28,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-29 03:50:28,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-29 03:50:28,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-29 03:50:28,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-29 03:50:28,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-29 03:50:28,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-29 03:50:28,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-29 03:50:28,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-29 03:50:28,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-29 03:50:28,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:50:28,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 03:50:28,513 INFO L445 BasicCegarLoop]: Path program histogram: [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 03:50:28,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:50:28,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 03:50:28,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 03:50:28,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:50:28 BoogieIcfgContainer [2023-11-29 03:50:28,551 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:50:28,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:50:28,551 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:50:28,551 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:50:28,552 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:49:03" (3/4) ... [2023-11-29 03:50:28,552 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 03:50:28,560 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 03:50:28,561 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 03:50:28,594 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:50:28,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:50:28,595 INFO L158 Benchmark]: Toolchain (without parser) took 85905.26ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 102.9MB in the beginning and 100.4MB in the end (delta: 2.5MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2023-11-29 03:50:28,596 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:50:28,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.46ms. Allocated memory is still 140.5MB. Free memory was 102.5MB in the beginning and 92.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 03:50:28,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.74ms. Allocated memory is still 140.5MB. Free memory was 92.1MB in the beginning and 90.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:50:28,597 INFO L158 Benchmark]: Boogie Preprocessor took 40.34ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 88.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:50:28,597 INFO L158 Benchmark]: RCFGBuilder took 416.27ms. Allocated memory is still 140.5MB. Free memory was 88.6MB in the beginning and 74.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 03:50:28,598 INFO L158 Benchmark]: TraceAbstraction took 85109.16ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 73.6MB in the beginning and 103.6MB in the end (delta: -30.0MB). Peak memory consumption was 422.0kB. Max. memory is 16.1GB. [2023-11-29 03:50:28,598 INFO L158 Benchmark]: Witness Printer took 43.83ms. Allocated memory is still 169.9MB. Free memory was 103.6MB in the beginning and 100.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:50:28,600 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.46ms. Allocated memory is still 140.5MB. Free memory was 102.5MB in the beginning and 92.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.74ms. Allocated memory is still 140.5MB. Free memory was 92.1MB in the beginning and 90.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.34ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 88.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.27ms. Allocated memory is still 140.5MB. Free memory was 88.6MB in the beginning and 74.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 85109.16ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 73.6MB in the beginning and 103.6MB in the end (delta: -30.0MB). Peak memory consumption was 422.0kB. Max. memory is 16.1GB. * Witness Printer took 43.83ms. Allocated memory is still 169.9MB. Free memory was 103.6MB in the beginning and 100.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 43]: integer overflow possible integer overflow possible We found a FailurePath: [L22] int counter = 0; [L24] int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_int() [L27] k = __VERIFIER_nondet_int() [L28] CALL assume_abort_if_not(z >= 1) VAL [\old(cond)=1, counter=0] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, counter=0] [L28] RET assume_abort_if_not(z >= 1) VAL [counter=0, k=3, z=1078429118] [L29] CALL assume_abort_if_not(k >= 1) VAL [\old(cond)=1, counter=0] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, counter=0] [L29] RET assume_abort_if_not(k >= 1) VAL [counter=0, k=3, z=1078429118] [L31] x = 1 [L32] y = z [L33] c = 1 VAL [c=1, counter=0, k=3, x=1, y=1078429118, z=1078429118] [L35] EXPR counter++ VAL [c=1, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L35] COND TRUE counter++<50 [L36] EXPR x*z VAL [c=1, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L36] EXPR x*z - x VAL [c=1, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L36] EXPR x*z - x - y VAL [c=1, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L36] EXPR x*z - x - y + 1 VAL [c=1, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L36] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [counter=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L38] COND FALSE !(!(c < k)) VAL [c=1, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L41] EXPR c + 1 [L41] c = c + 1 VAL [c=2, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L42] EXPR x * z VAL [c=2, counter=1, k=3, x=1, y=1078429118, z=1078429118] [L42] EXPR x * z + 1 [L42] x = x * z + 1 VAL [c=2, counter=1, k=3, x=1078429119, y=1078429118, z=1078429118] [L43] EXPR y * z [L43] y = y * z VAL [c=2, counter=1, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L35] EXPR counter++ VAL [c=2, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L35] COND TRUE counter++<50 [L36] EXPR x*z VAL [c=2, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L36] EXPR x*z - x VAL [c=2, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L36] EXPR x*z - x - y VAL [c=2, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L36] EXPR x*z - x - y + 1 VAL [c=2, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L36] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [counter=2] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L36] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=2, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L38] COND FALSE !(!(c < k)) VAL [c=2, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L41] EXPR c + 1 [L41] c = c + 1 VAL [c=3, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L42] EXPR x * z VAL [c=3, counter=2, k=3, x=1078429119, y=1163009362550257924, z=1078429118] [L42] EXPR x * z + 1 [L42] x = x * z + 1 VAL [c=3, counter=2, k=3, x=1163009363628687043, y=1163009362550257924, z=1078429118] [L43] y * z VAL [c=3, counter=2, k=3, x=1163009363628687043, y=1163009362550257924, z=1078429118] - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 71 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 85.0s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 62.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 1191 SdHoareTripleChecker+Valid, 56.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1177 mSDsluCounter, 2687 SdHoareTripleChecker+Invalid, 55.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 79 IncrementalHoareTripleChecker+Unchecked, 1765 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2186 IncrementalHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 922 mSDtfsCounter, 2186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1074 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=20, InterpolantAutomatonStates: 142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 164 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 844 NumberOfCodeBlocks, 844 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 961 ConstructedInterpolants, 50 QuantifiedInterpolants, 4912 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1750 ConjunctsInSsa, 141 ConjunctsInUnsatCore, 28 InterpolantComputations, 15 PerfectInterpolantSequences, 150/230 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 03:50:28,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a29d14d-3664-42d5-8b00-b1207ca05c19/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)