./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.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_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/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_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/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_cc9f715b-1195-4f8a-b4b2-1413ae69773f/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 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:59:17,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:59:17,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:59:17,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:59:17,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:59:17,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:59:17,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:59:17,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:59:17,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:59:17,252 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:59:17,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:59:17,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:59:17,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:59:17,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:59:17,255 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:59:17,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:59:17,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:59:17,257 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:59:17,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:59:17,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:59:17,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:59:17,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:59:17,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:59:17,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:59:17,264 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:59:17,265 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:59:17,265 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:59:17,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:59:17,266 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:59:17,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:59:17,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:59:17,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:59:17,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:59:17,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:59:17,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:59:17,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:59:17,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:59:17,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:59:17,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:59:17,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:59:17,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:59:17,269 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:59:17,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:59:17,270 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:59:17,270 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_cc9f715b-1195-4f8a-b4b2-1413ae69773f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 [2023-11-29 03:59:17,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:59:17,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:59:17,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:59:17,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:59:17,534 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:59:17,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2023-11-29 03:59:20,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:59:20,633 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:59:20,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2023-11-29 03:59:20,642 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/data/35e283bd8/6513ed0c389e4af290c422b9c61a00b6/FLAG3262ee3d4 [2023-11-29 03:59:20,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/data/35e283bd8/6513ed0c389e4af290c422b9c61a00b6 [2023-11-29 03:59:20,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:59:20,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:59:20,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:59:20,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:59:20,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:59:20,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:20,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a5025e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20, skipping insertion in model container [2023-11-29 03:59:20,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:20,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:59:20,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:59:20,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:59:20,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:59:20,946 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:59:20,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20 WrapperNode [2023-11-29 03:59:20,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:59:20,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:59:20,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:59:20,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:59:20,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:20,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:20,993 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 139 [2023-11-29 03:59:20,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:59:20,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:59:20,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:59:20,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:59:21,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,020 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 03:59:21,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:59:21,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:59:21,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:59:21,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:59:21,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (1/1) ... [2023-11-29 03:59:21,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:59:21,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:21,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:59:21,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:59:21,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:59:21,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:59:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:59:21,173 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:59:21,176 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:59:21,548 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:59:21,575 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:59:21,575 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 03:59:21,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:59:21 BoogieIcfgContainer [2023-11-29 03:59:21,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:59:21,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:59:21,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:59:21,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:59:21,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:59:20" (1/3) ... [2023-11-29 03:59:21,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140f835b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:59:21, skipping insertion in model container [2023-11-29 03:59:21,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:59:20" (2/3) ... [2023-11-29 03:59:21,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140f835b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:59:21, skipping insertion in model container [2023-11-29 03:59:21,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:59:21" (3/3) ... [2023-11-29 03:59:21,587 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound5.c [2023-11-29 03:59:21,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:59:21,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-29 03:59:21,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:59:21,660 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;@66133d99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:59:21,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-29 03:59:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 117 states have internal predecessors, (128), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:59:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 03:59:21,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:21,674 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:21,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:21,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:21,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1746693785, now seen corresponding path program 1 times [2023-11-29 03:59:21,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32589143] [2023-11-29 03:59:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:21,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:21,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:21,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32589143] [2023-11-29 03:59:21,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:59:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982292793] [2023-11-29 03:59:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:21,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:21,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:21,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:21,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:59:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:21,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:59:21,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 03:59:21,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:21,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982292793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:21,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:21,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:59:21,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166902629] [2023-11-29 03:59:21,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:21,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:59:21,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:21,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:59:21,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:59:21,985 INFO L87 Difference]: Start difference. First operand has 129 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 117 states have internal predecessors, (128), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:59:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:22,026 INFO L93 Difference]: Finished difference Result 256 states and 298 transitions. [2023-11-29 03:59:22,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:59:22,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2023-11-29 03:59:22,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:22,038 INFO L225 Difference]: With dead ends: 256 [2023-11-29 03:59:22,039 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 03:59:22,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 03:59:22,047 INFO L413 NwaCegarLoop]: 136 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, 136 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 03:59:22,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:59:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 03:59:22,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-11-29 03:59:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 66 states have (on average 1.7878787878787878) internal successors, (118), 115 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:59:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2023-11-29 03:59:22,099 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 25 [2023-11-29 03:59:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:22,099 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2023-11-29 03:59:22,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:59:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2023-11-29 03:59:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:59:22,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:22,102 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:22,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:22,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:59:22,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:22,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:22,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1247169459, now seen corresponding path program 1 times [2023-11-29 03:59:22,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:22,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253973470] [2023-11-29 03:59:22,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:22,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:22,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:22,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879694346] [2023-11-29 03:59:22,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:22,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:22,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:22,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:22,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:59:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:22,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:59:22,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:22,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:22,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253973470] [2023-11-29 03:59:22,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879694346] [2023-11-29 03:59:22,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879694346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:22,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:22,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:59:22,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963534192] [2023-11-29 03:59:22,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:22,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:59:22,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:22,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:59:22,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:59:22,470 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:22,737 INFO L93 Difference]: Finished difference Result 221 states and 235 transitions. [2023-11-29 03:59:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:59:22,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2023-11-29 03:59:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:22,744 INFO L225 Difference]: With dead ends: 221 [2023-11-29 03:59:22,744 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 03:59:22,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:59:22,747 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 240 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:22,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 320 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:22,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 03:59:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 128. [2023-11-29 03:59:22,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 68 states have (on average 1.7647058823529411) internal successors, (120), 117 states have internal predecessors, (120), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:59:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 136 transitions. [2023-11-29 03:59:22,766 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 136 transitions. Word has length 26 [2023-11-29 03:59:22,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:22,767 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 136 transitions. [2023-11-29 03:59:22,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:22,767 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 136 transitions. [2023-11-29 03:59:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:59:22,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:22,768 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:22,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:59:22,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:22,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:22,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:22,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1337999012, now seen corresponding path program 1 times [2023-11-29 03:59:22,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:22,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843831991] [2023-11-29 03:59:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:22,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:22,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176333012] [2023-11-29 03:59:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:22,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:22,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:22,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:22,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:59:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:23,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:59:23,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:23,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:23,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:23,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843831991] [2023-11-29 03:59:23,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:23,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176333012] [2023-11-29 03:59:23,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176333012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:23,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:23,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:59:23,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991855871] [2023-11-29 03:59:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:23,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:59:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:59:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:23,069 INFO L87 Difference]: Start difference. First operand 128 states and 136 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:23,145 INFO L93 Difference]: Finished difference Result 201 states and 215 transitions. [2023-11-29 03:59:23,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:59:23,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 03:59:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:23,148 INFO L225 Difference]: With dead ends: 201 [2023-11-29 03:59:23,148 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 03:59:23,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:59:23,150 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 63 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:23,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 220 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:59:23,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 03:59:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 167. [2023-11-29 03:59:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.7766990291262137) internal successors, (183), 152 states have internal predecessors, (183), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 207 transitions. [2023-11-29 03:59:23,169 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 207 transitions. Word has length 29 [2023-11-29 03:59:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:23,169 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 207 transitions. [2023-11-29 03:59:23,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:23,169 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 207 transitions. [2023-11-29 03:59:23,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:59:23,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:23,171 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:23,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:59:23,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:23,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:23,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1337999394, now seen corresponding path program 1 times [2023-11-29 03:59:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:23,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371088193] [2023-11-29 03:59:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:23,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:23,391 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:23,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [116025440] [2023-11-29 03:59:23,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:23,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:23,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:23,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:23,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:59:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:23,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:59:23,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:23,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:23,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:23,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371088193] [2023-11-29 03:59:23,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:23,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116025440] [2023-11-29 03:59:23,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116025440] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:23,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:23,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-29 03:59:23,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255584151] [2023-11-29 03:59:23,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:23,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:23,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:23,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:23,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:59:23,985 INFO L87 Difference]: Start difference. First operand 167 states and 207 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:24,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:24,319 INFO L93 Difference]: Finished difference Result 181 states and 222 transitions. [2023-11-29 03:59:24,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:59:24,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 03:59:24,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:24,322 INFO L225 Difference]: With dead ends: 181 [2023-11-29 03:59:24,322 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 03:59:24,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:59:24,324 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 286 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:24,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 223 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:24,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 03:59:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 171. [2023-11-29 03:59:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 156 states have internal predecessors, (187), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 211 transitions. [2023-11-29 03:59:24,350 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 211 transitions. Word has length 29 [2023-11-29 03:59:24,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:24,351 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 211 transitions. [2023-11-29 03:59:24,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 211 transitions. [2023-11-29 03:59:24,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:59:24,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:24,353 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:24,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:59:24,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-29 03:59:24,556 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:24,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:24,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1471691825, now seen corresponding path program 1 times [2023-11-29 03:59:24,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:24,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197673515] [2023-11-29 03:59:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:24,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:24,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:24,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930640034] [2023-11-29 03:59:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:24,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:24,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:24,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:24,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:59:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:24,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:59:24,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:24,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:25,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:25,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197673515] [2023-11-29 03:59:25,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:25,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930640034] [2023-11-29 03:59:25,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930640034] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:25,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:25,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-29 03:59:25,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485319638] [2023-11-29 03:59:25,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:25,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:25,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:25,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:25,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:59:25,136 INFO L87 Difference]: Start difference. First operand 171 states and 211 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:25,484 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2023-11-29 03:59:25,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:59:25,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2023-11-29 03:59:25,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:25,487 INFO L225 Difference]: With dead ends: 182 [2023-11-29 03:59:25,487 INFO L226 Difference]: Without dead ends: 181 [2023-11-29 03:59:25,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:59:25,489 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 203 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:25,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 257 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:59:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-29 03:59:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2023-11-29 03:59:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 157 states have internal predecessors, (187), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2023-11-29 03:59:25,516 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 30 [2023-11-29 03:59:25,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:25,516 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2023-11-29 03:59:25,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:25,517 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2023-11-29 03:59:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:59:25,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:25,518 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:25,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:59:25,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:25,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:25,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:25,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1621824194, now seen corresponding path program 1 times [2023-11-29 03:59:25,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:25,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046922019] [2023-11-29 03:59:25,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:25,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:25,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:25,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673895293] [2023-11-29 03:59:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:25,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:25,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:25,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:25,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:59:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:25,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:25,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:25,831 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:25,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:25,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:25,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046922019] [2023-11-29 03:59:25,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673895293] [2023-11-29 03:59:25,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673895293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:25,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:25,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:25,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731456312] [2023-11-29 03:59:25,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:25,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:59:25,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:25,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:59:25,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:25,834 INFO L87 Difference]: Start difference. First operand 172 states and 211 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:25,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:25,975 INFO L93 Difference]: Finished difference Result 200 states and 215 transitions. [2023-11-29 03:59:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:59:25,975 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2023-11-29 03:59:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:25,977 INFO L225 Difference]: With dead ends: 200 [2023-11-29 03:59:25,978 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 03:59:25,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:25,979 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 58 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:25,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 413 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:59:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 03:59:25,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 173. [2023-11-29 03:59:25,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.724770642201835) internal successors, (188), 158 states have internal predecessors, (188), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2023-11-29 03:59:25,997 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 31 [2023-11-29 03:59:25,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:25,997 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2023-11-29 03:59:25,997 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:25,997 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2023-11-29 03:59:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:59:25,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:25,999 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:26,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:59:26,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:26,200 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:26,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:26,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1622193600, now seen corresponding path program 1 times [2023-11-29 03:59:26,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:26,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81128680] [2023-11-29 03:59:26,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:26,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:26,215 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:26,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543828109] [2023-11-29 03:59:26,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:26,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:26,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:26,217 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:26,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:59:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:26,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:59:26,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:26,364 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:26,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:26,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:26,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81128680] [2023-11-29 03:59:26,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:26,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543828109] [2023-11-29 03:59:26,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543828109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:26,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:26,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:59:26,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310775824] [2023-11-29 03:59:26,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:26,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:26,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:26,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:26,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:59:26,367 INFO L87 Difference]: Start difference. First operand 173 states and 212 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:26,838 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2023-11-29 03:59:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:59:26,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2023-11-29 03:59:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:26,841 INFO L225 Difference]: With dead ends: 253 [2023-11-29 03:59:26,841 INFO L226 Difference]: Without dead ends: 252 [2023-11-29 03:59:26,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:59:26,842 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 435 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:26,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 409 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:59:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-29 03:59:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 173. [2023-11-29 03:59:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 109 states have (on average 1.7155963302752293) internal successors, (187), 158 states have internal predecessors, (187), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2023-11-29 03:59:26,858 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 31 [2023-11-29 03:59:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:26,859 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2023-11-29 03:59:26,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2023-11-29 03:59:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 03:59:26,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:26,860 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:26,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:59:27,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:27,062 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:27,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:27,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1263057693, now seen corresponding path program 1 times [2023-11-29 03:59:27,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:27,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541625497] [2023-11-29 03:59:27,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:27,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:27,073 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:27,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255173627] [2023-11-29 03:59:27,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:27,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:27,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:27,075 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:27,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:59:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:27,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:59:27,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:27,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:27,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:27,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541625497] [2023-11-29 03:59:27,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:27,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255173627] [2023-11-29 03:59:27,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255173627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:27,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:27,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:27,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801094982] [2023-11-29 03:59:27,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:27,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:27,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:27,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:27,175 INFO L87 Difference]: Start difference. First operand 173 states and 211 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:27,317 INFO L93 Difference]: Finished difference Result 198 states and 213 transitions. [2023-11-29 03:59:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:27,317 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2023-11-29 03:59:27,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:27,319 INFO L225 Difference]: With dead ends: 198 [2023-11-29 03:59:27,319 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 03:59:27,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 03:59:27,321 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 58 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:27,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 288 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:59:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 03:59:27,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 174. [2023-11-29 03:59:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 110 states have (on average 1.709090909090909) internal successors, (188), 159 states have internal predecessors, (188), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:27,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2023-11-29 03:59:27,350 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 32 [2023-11-29 03:59:27,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:27,350 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2023-11-29 03:59:27,350 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:27,350 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2023-11-29 03:59:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 03:59:27,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:27,351 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:27,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:27,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:27,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:27,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:27,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1251606035, now seen corresponding path program 1 times [2023-11-29 03:59:27,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:27,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712767761] [2023-11-29 03:59:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:27,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:27,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:27,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468226574] [2023-11-29 03:59:27,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:27,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:27,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:27,569 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:27,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:59:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:27,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:59:27,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:27,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:27,942 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:27,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:27,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712767761] [2023-11-29 03:59:27,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:27,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468226574] [2023-11-29 03:59:27,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468226574] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:59:27,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:59:27,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:59:27,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423388065] [2023-11-29 03:59:27,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:27,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:59:27,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:27,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:59:27,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:59:27,945 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:59:28,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:28,223 INFO L93 Difference]: Finished difference Result 200 states and 217 transitions. [2023-11-29 03:59:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:59:28,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 32 [2023-11-29 03:59:28,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:28,226 INFO L225 Difference]: With dead ends: 200 [2023-11-29 03:59:28,226 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 03:59:28,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 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 03:59:28,227 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 446 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:28,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 452 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:28,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 03:59:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 176. [2023-11-29 03:59:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 112 states have (on average 1.6964285714285714) internal successors, (190), 161 states have internal predecessors, (190), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:28,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2023-11-29 03:59:28,244 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 32 [2023-11-29 03:59:28,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:28,244 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2023-11-29 03:59:28,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:59:28,244 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2023-11-29 03:59:28,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:59:28,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:28,245 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:28,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:28,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:28,447 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:28,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash 500082976, now seen corresponding path program 1 times [2023-11-29 03:59:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:28,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252355840] [2023-11-29 03:59:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:28,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:28,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:28,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164093374] [2023-11-29 03:59:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:28,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:28,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:28,460 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:28,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:59:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:28,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:28,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:28,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:28,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252355840] [2023-11-29 03:59:28,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164093374] [2023-11-29 03:59:28,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164093374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:28,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:28,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:28,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289135059] [2023-11-29 03:59:28,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:28,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:28,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:28,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:28,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:28,553 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:28,775 INFO L93 Difference]: Finished difference Result 276 states and 299 transitions. [2023-11-29 03:59:28,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:28,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2023-11-29 03:59:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:28,778 INFO L225 Difference]: With dead ends: 276 [2023-11-29 03:59:28,778 INFO L226 Difference]: Without dead ends: 275 [2023-11-29 03:59:28,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 03:59:28,779 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 187 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:28,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 248 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:28,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-29 03:59:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 184. [2023-11-29 03:59:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 120 states have (on average 1.6583333333333334) internal successors, (199), 169 states have internal predecessors, (199), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2023-11-29 03:59:28,798 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 33 [2023-11-29 03:59:28,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:28,798 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2023-11-29 03:59:28,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2023-11-29 03:59:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:59:28,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:28,800 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:28,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:59:29,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:59:29,005 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:29,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:29,005 INFO L85 PathProgramCache]: Analyzing trace with hash 145081506, now seen corresponding path program 1 times [2023-11-29 03:59:29,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:29,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383877847] [2023-11-29 03:59:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:29,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:29,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:29,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117524395] [2023-11-29 03:59:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:29,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:29,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:29,017 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:29,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:59:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:29,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:59:29,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:29,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383877847] [2023-11-29 03:59:29,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117524395] [2023-11-29 03:59:29,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117524395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:29,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:29,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:59:29,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985461897] [2023-11-29 03:59:29,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:29,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:29,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:29,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:29,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:59:29,207 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:30,206 INFO L93 Difference]: Finished difference Result 257 states and 280 transitions. [2023-11-29 03:59:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:59:30,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2023-11-29 03:59:30,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:30,209 INFO L225 Difference]: With dead ends: 257 [2023-11-29 03:59:30,209 INFO L226 Difference]: Without dead ends: 256 [2023-11-29 03:59:30,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:59:30,210 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 409 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:30,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 355 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:59:30,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-29 03:59:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 184. [2023-11-29 03:59:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 120 states have (on average 1.65) internal successors, (198), 169 states have internal predecessors, (198), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:30,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 222 transitions. [2023-11-29 03:59:30,229 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 222 transitions. Word has length 33 [2023-11-29 03:59:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:30,230 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 222 transitions. [2023-11-29 03:59:30,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:30,230 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 222 transitions. [2023-11-29 03:59:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 03:59:30,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:30,231 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:30,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:30,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:59:30,435 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:30,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1677296769, now seen corresponding path program 1 times [2023-11-29 03:59:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:30,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401082530] [2023-11-29 03:59:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:30,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:30,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542334628] [2023-11-29 03:59:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:30,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:30,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:30,448 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:30,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:59:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:30,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:30,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:30,528 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:30,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:30,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:30,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401082530] [2023-11-29 03:59:30,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:30,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542334628] [2023-11-29 03:59:30,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542334628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:30,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:30,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:30,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150435279] [2023-11-29 03:59:30,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:30,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:30,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:30,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:30,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:30,530 INFO L87 Difference]: Start difference. First operand 184 states and 222 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:30,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:30,677 INFO L93 Difference]: Finished difference Result 274 states and 296 transitions. [2023-11-29 03:59:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:30,677 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-29 03:59:30,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:30,679 INFO L225 Difference]: With dead ends: 274 [2023-11-29 03:59:30,680 INFO L226 Difference]: Without dead ends: 273 [2023-11-29 03:59:30,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 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 03:59:30,681 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 123 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:30,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 335 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:59:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-29 03:59:30,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 185. [2023-11-29 03:59:30,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 121 states have (on average 1.6446280991735538) internal successors, (199), 170 states have internal predecessors, (199), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:30,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 223 transitions. [2023-11-29 03:59:30,700 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 223 transitions. Word has length 34 [2023-11-29 03:59:30,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:30,700 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 223 transitions. [2023-11-29 03:59:30,700 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:30,700 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 223 transitions. [2023-11-29 03:59:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 03:59:30,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:30,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:30,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:59:30,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:59:30,907 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:30,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash 202559477, now seen corresponding path program 1 times [2023-11-29 03:59:30,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:30,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323639283] [2023-11-29 03:59:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:30,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:30,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298230381] [2023-11-29 03:59:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:30,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:30,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:30,918 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:30,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:59:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:30,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:30,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:30,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:30,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:30,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323639283] [2023-11-29 03:59:30,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:30,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298230381] [2023-11-29 03:59:30,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298230381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:30,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:30,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:30,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951092359] [2023-11-29 03:59:30,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:30,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:30,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:30,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:30,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:30,990 INFO L87 Difference]: Start difference. First operand 185 states and 223 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:31,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:31,193 INFO L93 Difference]: Finished difference Result 211 states and 228 transitions. [2023-11-29 03:59:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:31,193 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-29 03:59:31,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:31,194 INFO L225 Difference]: With dead ends: 211 [2023-11-29 03:59:31,194 INFO L226 Difference]: Without dead ends: 210 [2023-11-29 03:59:31,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 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 03:59:31,195 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 102 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:31,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 247 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-29 03:59:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 185. [2023-11-29 03:59:31,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 121 states have (on average 1.6363636363636365) internal successors, (198), 170 states have internal predecessors, (198), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 222 transitions. [2023-11-29 03:59:31,209 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 222 transitions. Word has length 34 [2023-11-29 03:59:31,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:31,209 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 222 transitions. [2023-11-29 03:59:31,210 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 222 transitions. [2023-11-29 03:59:31,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 03:59:31,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:31,210 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:31,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:59:31,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:59:31,416 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:31,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:31,416 INFO L85 PathProgramCache]: Analyzing trace with hash -456592126, now seen corresponding path program 1 times [2023-11-29 03:59:31,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:31,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311999022] [2023-11-29 03:59:31,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:31,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:31,429 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:31,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065601408] [2023-11-29 03:59:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:31,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:31,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:31,431 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:31,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:59:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:31,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:31,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:31,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:31,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:31,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311999022] [2023-11-29 03:59:31,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:31,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065601408] [2023-11-29 03:59:31,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065601408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:31,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:31,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:31,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895149890] [2023-11-29 03:59:31,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:31,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:59:31,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:31,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:59:31,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:31,513 INFO L87 Difference]: Start difference. First operand 185 states and 222 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:31,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:31,684 INFO L93 Difference]: Finished difference Result 213 states and 230 transitions. [2023-11-29 03:59:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:59:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2023-11-29 03:59:31,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:31,686 INFO L225 Difference]: With dead ends: 213 [2023-11-29 03:59:31,686 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 03:59:31,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:31,687 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 58 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:31,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 358 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:31,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 03:59:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 188. [2023-11-29 03:59:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 124 states have (on average 1.6370967741935485) internal successors, (203), 173 states have internal predecessors, (203), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:31,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 227 transitions. [2023-11-29 03:59:31,705 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 227 transitions. Word has length 35 [2023-11-29 03:59:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:31,705 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 227 transitions. [2023-11-29 03:59:31,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 227 transitions. [2023-11-29 03:59:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:59:31,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:31,706 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:31,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:31,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:59:31,906 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:31,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:31,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1269453855, now seen corresponding path program 1 times [2023-11-29 03:59:31,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:31,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696948975] [2023-11-29 03:59:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:31,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:31,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:31,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568909333] [2023-11-29 03:59:31,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:31,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:31,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:31,915 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:31,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:59:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:31,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:59:31,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:32,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:32,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:32,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696948975] [2023-11-29 03:59:32,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:32,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568909333] [2023-11-29 03:59:32,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568909333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:32,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:32,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:59:32,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353831491] [2023-11-29 03:59:32,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:32,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:59:32,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:32,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:59:32,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:32,029 INFO L87 Difference]: Start difference. First operand 188 states and 227 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:32,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:32,289 INFO L93 Difference]: Finished difference Result 265 states and 289 transitions. [2023-11-29 03:59:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:59:32,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2023-11-29 03:59:32,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:32,291 INFO L225 Difference]: With dead ends: 265 [2023-11-29 03:59:32,291 INFO L226 Difference]: Without dead ends: 264 [2023-11-29 03:59:32,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:32,292 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 161 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:32,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 304 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-29 03:59:32,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 190. [2023-11-29 03:59:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 126 states have (on average 1.626984126984127) internal successors, (205), 175 states have internal predecessors, (205), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:59:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 229 transitions. [2023-11-29 03:59:32,311 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 229 transitions. Word has length 36 [2023-11-29 03:59:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:32,311 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 229 transitions. [2023-11-29 03:59:32,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 229 transitions. [2023-11-29 03:59:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:59:32,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:32,312 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:32,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:59:32,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:59:32,515 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:32,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1112706140, now seen corresponding path program 1 times [2023-11-29 03:59:32,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:32,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357748611] [2023-11-29 03:59:32,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:32,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:32,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:32,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963539994] [2023-11-29 03:59:32,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:32,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:32,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:32,526 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:32,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:59:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:32,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:59:32,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:32,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:32,711 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:32,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:32,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357748611] [2023-11-29 03:59:32,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:32,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963539994] [2023-11-29 03:59:32,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963539994] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:59:32,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:59:32,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 03:59:32,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867265302] [2023-11-29 03:59:32,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:32,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:59:32,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:32,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:59:32,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:59:32,714 INFO L87 Difference]: Start difference. First operand 190 states and 229 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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 03:59:34,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:34,362 INFO L93 Difference]: Finished difference Result 514 states and 597 transitions. [2023-11-29 03:59:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:59:34,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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 39 [2023-11-29 03:59:34,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:34,364 INFO L225 Difference]: With dead ends: 514 [2023-11-29 03:59:34,364 INFO L226 Difference]: Without dead ends: 486 [2023-11-29 03:59:34,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:59:34,365 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 542 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:34,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 698 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:59:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-11-29 03:59:34,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 257. [2023-11-29 03:59:34,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 189 states have (on average 1.6825396825396826) internal successors, (318), 238 states have internal predecessors, (318), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:59:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 350 transitions. [2023-11-29 03:59:34,390 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 350 transitions. Word has length 39 [2023-11-29 03:59:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:34,390 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 350 transitions. [2023-11-29 03:59:34,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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 03:59:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 350 transitions. [2023-11-29 03:59:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:59:34,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:34,391 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 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 03:59:34,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:59:34,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:59:34,592 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:34,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:34,592 INFO L85 PathProgramCache]: Analyzing trace with hash 330389210, now seen corresponding path program 1 times [2023-11-29 03:59:34,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:34,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608766327] [2023-11-29 03:59:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:34,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:34,601 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:34,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783120138] [2023-11-29 03:59:34,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:34,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:34,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:34,603 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:34,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:59:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:34,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:59:34,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:34,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:34,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:34,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608766327] [2023-11-29 03:59:34,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:34,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783120138] [2023-11-29 03:59:34,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783120138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:59:34,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:59:34,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 03:59:34,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583050775] [2023-11-29 03:59:34,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:34,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:59:34,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:59:34,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:59:34,959 INFO L87 Difference]: Start difference. First operand 257 states and 350 transitions. Second operand has 11 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:59:36,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:36,118 INFO L93 Difference]: Finished difference Result 315 states and 393 transitions. [2023-11-29 03:59:36,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:59:36,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 42 [2023-11-29 03:59:36,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:36,120 INFO L225 Difference]: With dead ends: 315 [2023-11-29 03:59:36,120 INFO L226 Difference]: Without dead ends: 313 [2023-11-29 03:59:36,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:59:36,121 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 483 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:36,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 506 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:59:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-29 03:59:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 269. [2023-11-29 03:59:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 199 states have (on average 1.678391959798995) internal successors, (334), 248 states have internal predecessors, (334), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:59:36,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 370 transitions. [2023-11-29 03:59:36,140 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 370 transitions. Word has length 42 [2023-11-29 03:59:36,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:36,140 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 370 transitions. [2023-11-29 03:59:36,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:59:36,140 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 370 transitions. [2023-11-29 03:59:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:59:36,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:36,141 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:36,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:59:36,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:59:36,342 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:36,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:36,342 INFO L85 PathProgramCache]: Analyzing trace with hash -72300597, now seen corresponding path program 1 times [2023-11-29 03:59:36,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:36,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244197258] [2023-11-29 03:59:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:36,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:36,350 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:36,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617020607] [2023-11-29 03:59:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:36,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:36,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:36,351 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:36,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:59:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:36,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:59:36,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:36,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:36,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:36,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244197258] [2023-11-29 03:59:36,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:36,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617020607] [2023-11-29 03:59:36,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617020607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:36,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:36,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:59:36,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860845527] [2023-11-29 03:59:36,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:36,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:59:36,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:36,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:59:36,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:59:36,420 INFO L87 Difference]: Start difference. First operand 269 states and 370 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:36,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:36,628 INFO L93 Difference]: Finished difference Result 565 states and 743 transitions. [2023-11-29 03:59:36,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:59:36,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2023-11-29 03:59:36,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:36,632 INFO L225 Difference]: With dead ends: 565 [2023-11-29 03:59:36,632 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 03:59:36,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:59:36,634 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 207 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:36,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 524 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:36,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 03:59:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 198. [2023-11-29 03:59:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 133 states have (on average 1.6015037593984962) internal successors, (213), 182 states have internal predecessors, (213), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:59:36,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 239 transitions. [2023-11-29 03:59:36,654 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 239 transitions. Word has length 42 [2023-11-29 03:59:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:36,655 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 239 transitions. [2023-11-29 03:59:36,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:59:36,655 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 239 transitions. [2023-11-29 03:59:36,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:59:36,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:36,655 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:36,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:59:36,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:59:36,856 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:36,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash -72300979, now seen corresponding path program 1 times [2023-11-29 03:59:36,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:36,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052171176] [2023-11-29 03:59:36,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:36,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:36,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:36,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94950550] [2023-11-29 03:59:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:36,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:36,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:36,866 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:36,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:59:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:36,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:59:36,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:37,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:37,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:37,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052171176] [2023-11-29 03:59:37,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:37,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94950550] [2023-11-29 03:59:37,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94950550] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:37,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:37,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:59:37,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904830053] [2023-11-29 03:59:37,587 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:37,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:59:37,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:37,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:59:37,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:59:37,589 INFO L87 Difference]: Start difference. First operand 198 states and 239 transitions. Second operand has 12 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:38,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:38,972 INFO L93 Difference]: Finished difference Result 350 states and 390 transitions. [2023-11-29 03:59:38,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:59:38,973 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-11-29 03:59:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:38,975 INFO L225 Difference]: With dead ends: 350 [2023-11-29 03:59:38,975 INFO L226 Difference]: Without dead ends: 349 [2023-11-29 03:59:38,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:59:38,976 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 506 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:38,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 586 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:59:38,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-29 03:59:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 202. [2023-11-29 03:59:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 137 states have (on average 1.583941605839416) internal successors, (217), 186 states have internal predecessors, (217), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:59:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 243 transitions. [2023-11-29 03:59:38,994 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 243 transitions. Word has length 42 [2023-11-29 03:59:38,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:38,994 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 243 transitions. [2023-11-29 03:59:38,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 243 transitions. [2023-11-29 03:59:38,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 03:59:38,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:38,995 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:39,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:59:39,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:39,196 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:39,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:39,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2053637026, now seen corresponding path program 1 times [2023-11-29 03:59:39,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:39,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144909195] [2023-11-29 03:59:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:39,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:39,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:39,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718773402] [2023-11-29 03:59:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:39,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:39,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:39,205 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:39,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:59:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:39,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:59:39,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:39,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:40,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:40,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144909195] [2023-11-29 03:59:40,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:40,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718773402] [2023-11-29 03:59:40,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718773402] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:40,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:40,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:59:40,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799301759] [2023-11-29 03:59:40,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:40,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:59:40,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:40,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:59:40,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:59:40,142 INFO L87 Difference]: Start difference. First operand 202 states and 243 transitions. Second operand has 12 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:41,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:41,627 INFO L93 Difference]: Finished difference Result 349 states and 389 transitions. [2023-11-29 03:59:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:59:41,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2023-11-29 03:59:41,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:41,629 INFO L225 Difference]: With dead ends: 349 [2023-11-29 03:59:41,629 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 03:59:41,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:59:41,630 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 771 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 518 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:59:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 03:59:41,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 203. [2023-11-29 03:59:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 187 states have internal predecessors, (218), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:59:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 244 transitions. [2023-11-29 03:59:41,655 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 244 transitions. Word has length 43 [2023-11-29 03:59:41,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:41,655 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 244 transitions. [2023-11-29 03:59:41,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 244 transitions. [2023-11-29 03:59:41,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:59:41,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:41,656 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:41,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:41,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:41,857 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:41,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:41,857 INFO L85 PathProgramCache]: Analyzing trace with hash -323546020, now seen corresponding path program 1 times [2023-11-29 03:59:41,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:41,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790095688] [2023-11-29 03:59:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:41,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:41,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:41,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045390371] [2023-11-29 03:59:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:41,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:41,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:41,867 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:41,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:59:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:41,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:59:41,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:42,014 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:59:42,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:42,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:42,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790095688] [2023-11-29 03:59:42,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:42,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045390371] [2023-11-29 03:59:42,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045390371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:42,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:42,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:59:42,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629965893] [2023-11-29 03:59:42,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:42,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:59:42,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:42,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:59:42,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:59:42,016 INFO L87 Difference]: Start difference. First operand 203 states and 244 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:59:42,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:42,418 INFO L93 Difference]: Finished difference Result 221 states and 244 transitions. [2023-11-29 03:59:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:59:42,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2023-11-29 03:59:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:42,420 INFO L225 Difference]: With dead ends: 221 [2023-11-29 03:59:42,420 INFO L226 Difference]: Without dead ends: 220 [2023-11-29 03:59:42,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:59:42,421 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 196 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:42,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 317 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:59:42,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-29 03:59:42,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 203. [2023-11-29 03:59:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 138 states have (on average 1.5724637681159421) internal successors, (217), 187 states have internal predecessors, (217), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:59:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 243 transitions. [2023-11-29 03:59:42,439 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 243 transitions. Word has length 44 [2023-11-29 03:59:42,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:42,439 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 243 transitions. [2023-11-29 03:59:42,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:59:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 243 transitions. [2023-11-29 03:59:42,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:59:42,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:42,440 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:42,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 03:59:42,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 03:59:42,641 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:42,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:42,641 INFO L85 PathProgramCache]: Analyzing trace with hash -761761553, now seen corresponding path program 1 times [2023-11-29 03:59:42,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:42,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147264486] [2023-11-29 03:59:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:42,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:42,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:42,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686314494] [2023-11-29 03:59:42,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:42,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:42,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:42,652 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:42,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:59:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:42,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:59:42,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:42,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:43,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:43,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147264486] [2023-11-29 03:59:43,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:43,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686314494] [2023-11-29 03:59:43,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686314494] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:43,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:43,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:59:43,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575069908] [2023-11-29 03:59:43,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:43,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:43,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:43,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:43,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:59:43,033 INFO L87 Difference]: Start difference. First operand 203 states and 243 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:43,853 INFO L93 Difference]: Finished difference Result 330 states and 365 transitions. [2023-11-29 03:59:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:59:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2023-11-29 03:59:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:43,855 INFO L225 Difference]: With dead ends: 330 [2023-11-29 03:59:43,855 INFO L226 Difference]: Without dead ends: 328 [2023-11-29 03:59:43,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:59:43,856 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 403 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:43,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 415 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:59:43,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-29 03:59:43,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 256. [2023-11-29 03:59:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 186 states have (on average 1.6129032258064515) internal successors, (300), 235 states have internal predecessors, (300), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:59:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 336 transitions. [2023-11-29 03:59:43,892 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 336 transitions. Word has length 44 [2023-11-29 03:59:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:43,892 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 336 transitions. [2023-11-29 03:59:43,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 336 transitions. [2023-11-29 03:59:43,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:59:43,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:43,893 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:43,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:59:44,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:44,094 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:44,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:44,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1439991928, now seen corresponding path program 1 times [2023-11-29 03:59:44,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:44,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559060071] [2023-11-29 03:59:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:44,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:44,103 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:44,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721083335] [2023-11-29 03:59:44,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:44,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:44,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:44,105 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:44,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:59:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:44,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:59:44,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:59:44,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:44,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:44,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559060071] [2023-11-29 03:59:44,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:44,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721083335] [2023-11-29 03:59:44,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721083335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:44,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:44,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:59:44,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103282232] [2023-11-29 03:59:44,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:44,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:59:44,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:44,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:59:44,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:59:44,174 INFO L87 Difference]: Start difference. First operand 256 states and 336 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:59:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:44,448 INFO L93 Difference]: Finished difference Result 285 states and 349 transitions. [2023-11-29 03:59:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:59:44,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-11-29 03:59:44,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:44,451 INFO L225 Difference]: With dead ends: 285 [2023-11-29 03:59:44,451 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 03:59:44,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 03:59:44,452 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 92 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:44,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 241 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:59:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 03:59:44,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 256. [2023-11-29 03:59:44,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 186 states have (on average 1.60752688172043) internal successors, (299), 235 states have internal predecessors, (299), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:59:44,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 335 transitions. [2023-11-29 03:59:44,487 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 335 transitions. Word has length 45 [2023-11-29 03:59:44,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:44,487 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 335 transitions. [2023-11-29 03:59:44,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:59:44,487 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 335 transitions. [2023-11-29 03:59:44,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:59:44,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:44,488 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 03:59:44,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:59:44,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 03:59:44,689 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:44,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:44,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2139771580, now seen corresponding path program 1 times [2023-11-29 03:59:44,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:44,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687011264] [2023-11-29 03:59:44,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:44,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:44,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:44,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210385845] [2023-11-29 03:59:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:44,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:44,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:44,698 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:44,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:59:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:44,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:59:44,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:44,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:45,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:45,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687011264] [2023-11-29 03:59:45,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:45,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210385845] [2023-11-29 03:59:45,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210385845] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:45,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:45,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:59:45,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213305597] [2023-11-29 03:59:45,252 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:45,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:45,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:45,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:59:45,253 INFO L87 Difference]: Start difference. First operand 256 states and 335 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:46,083 INFO L93 Difference]: Finished difference Result 329 states and 361 transitions. [2023-11-29 03:59:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:59:46,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2023-11-29 03:59:46,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:46,085 INFO L225 Difference]: With dead ends: 329 [2023-11-29 03:59:46,085 INFO L226 Difference]: Without dead ends: 327 [2023-11-29 03:59:46,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:59:46,086 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 378 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:46,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 578 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:59:46,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-29 03:59:46,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 257. [2023-11-29 03:59:46,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 187 states have (on average 1.5989304812834224) internal successors, (299), 236 states have internal predecessors, (299), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:59:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 335 transitions. [2023-11-29 03:59:46,110 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 335 transitions. Word has length 45 [2023-11-29 03:59:46,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:46,110 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 335 transitions. [2023-11-29 03:59:46,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:46,110 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 335 transitions. [2023-11-29 03:59:46,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 03:59:46,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:46,111 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 03:59:46,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 03:59:46,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:46,312 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:46,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:46,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1908409455, now seen corresponding path program 1 times [2023-11-29 03:59:46,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:46,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482480106] [2023-11-29 03:59:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:46,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:46,318 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824578276] [2023-11-29 03:59:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:46,320 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:46,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:59:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:46,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:59:46,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:46,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:47,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:47,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482480106] [2023-11-29 03:59:47,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:47,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824578276] [2023-11-29 03:59:47,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824578276] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:47,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:47,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:59:47,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039762208] [2023-11-29 03:59:47,100 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:47,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:59:47,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:47,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:59:47,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:59:47,102 INFO L87 Difference]: Start difference. First operand 257 states and 335 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:49,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:49,229 INFO L93 Difference]: Finished difference Result 327 states and 359 transitions. [2023-11-29 03:59:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:59:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2023-11-29 03:59:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:49,231 INFO L225 Difference]: With dead ends: 327 [2023-11-29 03:59:49,231 INFO L226 Difference]: Without dead ends: 326 [2023-11-29 03:59:49,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:59:49,233 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 527 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:49,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 411 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 03:59:49,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-11-29 03:59:49,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 257. [2023-11-29 03:59:49,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 187 states have (on average 1.588235294117647) internal successors, (297), 236 states have internal predecessors, (297), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:59:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 333 transitions. [2023-11-29 03:59:49,270 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 333 transitions. Word has length 46 [2023-11-29 03:59:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:49,270 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 333 transitions. [2023-11-29 03:59:49,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 333 transitions. [2023-11-29 03:59:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 03:59:49,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:49,271 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 03:59:49,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 03:59:49,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:49,472 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:49,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash 968849126, now seen corresponding path program 1 times [2023-11-29 03:59:49,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:49,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750016402] [2023-11-29 03:59:49,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:49,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:49,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:49,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218563717] [2023-11-29 03:59:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:49,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:49,482 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:49,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:59:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:49,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:59:49,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:49,756 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:49,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:50,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:50,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750016402] [2023-11-29 03:59:50,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:50,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218563717] [2023-11-29 03:59:50,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218563717] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:50,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:50,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:59:50,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56791785] [2023-11-29 03:59:50,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:50,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:59:50,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:50,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:59:50,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:59:50,312 INFO L87 Difference]: Start difference. First operand 257 states and 333 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:52,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:52,046 INFO L93 Difference]: Finished difference Result 326 states and 357 transitions. [2023-11-29 03:59:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:59:52,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2023-11-29 03:59:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:52,049 INFO L225 Difference]: With dead ends: 326 [2023-11-29 03:59:52,049 INFO L226 Difference]: Without dead ends: 325 [2023-11-29 03:59:52,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:59:52,050 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 477 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:52,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 601 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 03:59:52,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-29 03:59:52,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 257. [2023-11-29 03:59:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 187 states have (on average 1.5775401069518717) internal successors, (295), 236 states have internal predecessors, (295), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 03:59:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 331 transitions. [2023-11-29 03:59:52,087 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 331 transitions. Word has length 47 [2023-11-29 03:59:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:52,087 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 331 transitions. [2023-11-29 03:59:52,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:59:52,087 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 331 transitions. [2023-11-29 03:59:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:59:52,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:52,088 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:52,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:59:52,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:59:52,289 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:52,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash -770088908, now seen corresponding path program 1 times [2023-11-29 03:59:52,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:52,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288531961] [2023-11-29 03:59:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:52,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:52,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:52,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793744981] [2023-11-29 03:59:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:52,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:52,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:52,298 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:52,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:59:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:52,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:59:52,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:59:52,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:59:52,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:52,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288531961] [2023-11-29 03:59:52,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:52,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793744981] [2023-11-29 03:59:52,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793744981] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:59:52,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:59:52,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 03:59:52,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526619417] [2023-11-29 03:59:52,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:52,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:59:52,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:59:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:59:52,565 INFO L87 Difference]: Start difference. First operand 257 states and 331 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 03:59:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:53,921 INFO L93 Difference]: Finished difference Result 378 states and 456 transitions. [2023-11-29 03:59:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:59:53,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 51 [2023-11-29 03:59:53,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:53,924 INFO L225 Difference]: With dead ends: 378 [2023-11-29 03:59:53,924 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 03:59:53,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:59:53,925 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 627 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:53,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 424 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:59:53,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 03:59:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 305. [2023-11-29 03:59:53,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 229 states have (on average 1.5283842794759825) internal successors, (350), 278 states have internal predecessors, (350), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:59:53,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 398 transitions. [2023-11-29 03:59:53,956 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 398 transitions. Word has length 51 [2023-11-29 03:59:53,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:53,956 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 398 transitions. [2023-11-29 03:59:53,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 03:59:53,957 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 398 transitions. [2023-11-29 03:59:53,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:59:53,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:53,957 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:53,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 03:59:54,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 03:59:54,158 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:54,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:54,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1897047733, now seen corresponding path program 1 times [2023-11-29 03:59:54,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:54,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562775571] [2023-11-29 03:59:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:54,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:54,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:54,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465308651] [2023-11-29 03:59:54,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:54,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:54,166 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:54,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:59:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:54,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:59:54,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:59:54,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:59:54,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:54,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562775571] [2023-11-29 03:59:54,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:54,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465308651] [2023-11-29 03:59:54,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465308651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:54,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:54,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:59:54,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991110167] [2023-11-29 03:59:54,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:54,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:59:54,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:59:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:59:54,292 INFO L87 Difference]: Start difference. First operand 305 states and 398 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:59:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:54,703 INFO L93 Difference]: Finished difference Result 370 states and 452 transitions. [2023-11-29 03:59:54,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:59:54,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-11-29 03:59:54,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:54,706 INFO L225 Difference]: With dead ends: 370 [2023-11-29 03:59:54,706 INFO L226 Difference]: Without dead ends: 369 [2023-11-29 03:59:54,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:59:54,707 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 247 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:54,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 394 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:59:54,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-11-29 03:59:54,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 335. [2023-11-29 03:59:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 255 states have (on average 1.5176470588235293) internal successors, (387), 304 states have internal predecessors, (387), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:59:54,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 443 transitions. [2023-11-29 03:59:54,760 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 443 transitions. Word has length 52 [2023-11-29 03:59:54,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:54,760 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 443 transitions. [2023-11-29 03:59:54,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:59:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 443 transitions. [2023-11-29 03:59:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:59:54,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:54,761 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:54,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 03:59:54,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:59:54,962 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:54,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1321062314, now seen corresponding path program 1 times [2023-11-29 03:59:54,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:54,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217483717] [2023-11-29 03:59:54,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:54,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:54,969 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:54,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586106355] [2023-11-29 03:59:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:54,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:54,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:54,971 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:54,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:59:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:55,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:59:55,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:55,077 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 03:59:55,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:59:55,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:55,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217483717] [2023-11-29 03:59:55,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:59:55,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586106355] [2023-11-29 03:59:55,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586106355] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:59:55,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:59:55,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:59:55,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555382220] [2023-11-29 03:59:55,123 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:59:55,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:59:55,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:55,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:59:55,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:59:55,124 INFO L87 Difference]: Start difference. First operand 335 states and 443 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:59:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:59:55,984 INFO L93 Difference]: Finished difference Result 365 states and 447 transitions. [2023-11-29 03:59:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:59:55,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2023-11-29 03:59:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:59:55,987 INFO L225 Difference]: With dead ends: 365 [2023-11-29 03:59:55,987 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 03:59:55,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:59:55,988 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 315 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:59:55,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 494 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:59:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 03:59:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 335. [2023-11-29 03:59:56,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 255 states have (on average 1.5137254901960784) internal successors, (386), 304 states have internal predecessors, (386), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:59:56,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 442 transitions. [2023-11-29 03:59:56,024 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 442 transitions. Word has length 53 [2023-11-29 03:59:56,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:59:56,025 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 442 transitions. [2023-11-29 03:59:56,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:59:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 442 transitions. [2023-11-29 03:59:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:59:56,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:59:56,026 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:56,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 03:59:56,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:59:56,226 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 03:59:56,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:56,227 INFO L85 PathProgramCache]: Analyzing trace with hash -443404407, now seen corresponding path program 1 times [2023-11-29 03:59:56,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:56,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287127121] [2023-11-29 03:59:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:56,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:56,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:59:56,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407012173] [2023-11-29 03:59:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:56,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:59:56,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:59:56,237 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:59:56,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:59:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:56,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:59:56,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:59:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:59:56,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:13,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:13,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287127121] [2023-11-29 04:00:13,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:13,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407012173] [2023-11-29 04:00:13,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407012173] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:13,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:13,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:00:13,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611466823] [2023-11-29 04:00:13,017 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:13,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:00:13,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:13,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:00:13,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=110, Unknown=4, NotChecked=0, Total=156 [2023-11-29 04:00:13,018 INFO L87 Difference]: Start difference. First operand 335 states and 442 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:13,787 INFO L93 Difference]: Finished difference Result 409 states and 474 transitions. [2023-11-29 04:00:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:00:13,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 53 [2023-11-29 04:00:13,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:13,789 INFO L225 Difference]: With dead ends: 409 [2023-11-29 04:00:13,789 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 04:00:13,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=46, Invalid=132, Unknown=4, NotChecked=0, Total=182 [2023-11-29 04:00:13,790 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 532 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:13,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 648 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:00:13,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 04:00:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 336. [2023-11-29 04:00:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 256 states have (on average 1.5) internal successors, (384), 305 states have internal predecessors, (384), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 04:00:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 440 transitions. [2023-11-29 04:00:13,828 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 440 transitions. Word has length 53 [2023-11-29 04:00:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:13,828 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 440 transitions. [2023-11-29 04:00:13,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 440 transitions. [2023-11-29 04:00:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 04:00:13,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:13,829 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:13,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 04:00:14,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:14,030 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:14,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1996741335, now seen corresponding path program 1 times [2023-11-29 04:00:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039574112] [2023-11-29 04:00:14,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:14,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:14,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:14,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409773528] [2023-11-29 04:00:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:14,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:14,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:14,039 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:14,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 04:00:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:14,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:00:14,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 04:00:14,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:14,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:14,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039574112] [2023-11-29 04:00:14,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:14,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409773528] [2023-11-29 04:00:14,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409773528] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:14,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:14,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:00:14,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708856991] [2023-11-29 04:00:14,429 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:14,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:00:14,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:14,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:00:14,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:00:14,431 INFO L87 Difference]: Start difference. First operand 336 states and 440 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 04:00:15,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:15,049 INFO L93 Difference]: Finished difference Result 365 states and 444 transitions. [2023-11-29 04:00:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:00:15,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 54 [2023-11-29 04:00:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:15,052 INFO L225 Difference]: With dead ends: 365 [2023-11-29 04:00:15,052 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 04:00:15,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:00:15,053 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 280 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:15,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 291 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:00:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 04:00:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 336. [2023-11-29 04:00:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 256 states have (on average 1.49609375) internal successors, (383), 305 states have internal predecessors, (383), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 04:00:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 439 transitions. [2023-11-29 04:00:15,099 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 439 transitions. Word has length 54 [2023-11-29 04:00:15,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:15,100 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 439 transitions. [2023-11-29 04:00:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 04:00:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 439 transitions. [2023-11-29 04:00:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 04:00:15,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:15,100 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:15,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 04:00:15,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:15,301 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:15,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:15,301 INFO L85 PathProgramCache]: Analyzing trace with hash -860634637, now seen corresponding path program 1 times [2023-11-29 04:00:15,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:15,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933441167] [2023-11-29 04:00:15,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:15,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:15,308 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468984715] [2023-11-29 04:00:15,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:15,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:15,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:15,310 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:15,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 04:00:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:15,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:00:15,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:00:15,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:26,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:26,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933441167] [2023-11-29 04:00:26,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:26,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468984715] [2023-11-29 04:00:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468984715] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:26,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:26,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:00:26,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009073772] [2023-11-29 04:00:26,751 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:26,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:00:26,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:26,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:00:26,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=111, Unknown=3, NotChecked=0, Total=156 [2023-11-29 04:00:26,752 INFO L87 Difference]: Start difference. First operand 336 states and 439 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:27,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:27,870 INFO L93 Difference]: Finished difference Result 409 states and 469 transitions. [2023-11-29 04:00:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:00:27,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 54 [2023-11-29 04:00:27,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:27,873 INFO L225 Difference]: With dead ends: 409 [2023-11-29 04:00:27,873 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 04:00:27,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=57, Invalid=150, Unknown=3, NotChecked=0, Total=210 [2023-11-29 04:00:27,874 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 386 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:27,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 467 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:00:27,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 04:00:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 337. [2023-11-29 04:00:27,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 257 states have (on average 1.482490272373541) internal successors, (381), 306 states have internal predecessors, (381), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 04:00:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 437 transitions. [2023-11-29 04:00:27,918 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 437 transitions. Word has length 54 [2023-11-29 04:00:27,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:27,919 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 437 transitions. [2023-11-29 04:00:27,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:27,919 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 437 transitions. [2023-11-29 04:00:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 04:00:27,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:27,919 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:27,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-29 04:00:28,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:28,120 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:28,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:28,120 INFO L85 PathProgramCache]: Analyzing trace with hash -909869877, now seen corresponding path program 1 times [2023-11-29 04:00:28,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:28,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603344593] [2023-11-29 04:00:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:28,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:28,127 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:28,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495286715] [2023-11-29 04:00:28,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:28,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:28,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:28,129 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:28,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 04:00:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:28,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:00:28,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:00:28,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:37,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:37,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603344593] [2023-11-29 04:00:37,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:37,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495286715] [2023-11-29 04:00:37,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495286715] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:37,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:37,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:00:37,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516330548] [2023-11-29 04:00:37,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:37,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:00:37,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:37,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:00:37,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=341, Unknown=2, NotChecked=0, Total=420 [2023-11-29 04:00:37,017 INFO L87 Difference]: Start difference. First operand 337 states and 437 transitions. Second operand has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:38,467 INFO L93 Difference]: Finished difference Result 462 states and 550 transitions. [2023-11-29 04:00:38,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:00:38,467 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 55 [2023-11-29 04:00:38,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:38,470 INFO L225 Difference]: With dead ends: 462 [2023-11-29 04:00:38,470 INFO L226 Difference]: Without dead ends: 461 [2023-11-29 04:00:38,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=151, Invalid=659, Unknown=2, NotChecked=0, Total=812 [2023-11-29 04:00:38,472 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 494 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:38,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 552 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:00:38,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-29 04:00:38,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 334. [2023-11-29 04:00:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 254 states have (on average 1.4881889763779528) internal successors, (378), 303 states have internal predecessors, (378), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 04:00:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 434 transitions. [2023-11-29 04:00:38,529 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 434 transitions. Word has length 55 [2023-11-29 04:00:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:38,529 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 434 transitions. [2023-11-29 04:00:38,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 434 transitions. [2023-11-29 04:00:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 04:00:38,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:38,530 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:38,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 04:00:38,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 04:00:38,731 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:38,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1858804981, now seen corresponding path program 1 times [2023-11-29 04:00:38,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:38,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886660391] [2023-11-29 04:00:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:38,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:38,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:38,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737528664] [2023-11-29 04:00:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:38,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:38,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:38,740 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:38,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 04:00:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:38,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:00:38,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:00:39,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:44,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:44,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886660391] [2023-11-29 04:00:44,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:44,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737528664] [2023-11-29 04:00:44,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737528664] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:44,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:44,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:00:44,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554967421] [2023-11-29 04:00:44,627 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:44,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:00:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:00:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=342, Unknown=1, NotChecked=0, Total=420 [2023-11-29 04:00:44,629 INFO L87 Difference]: Start difference. First operand 334 states and 434 transitions. Second operand has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:45,897 INFO L93 Difference]: Finished difference Result 450 states and 537 transitions. [2023-11-29 04:00:45,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:00:45,897 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 56 [2023-11-29 04:00:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:45,900 INFO L225 Difference]: With dead ends: 450 [2023-11-29 04:00:45,900 INFO L226 Difference]: Without dead ends: 449 [2023-11-29 04:00:45,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=151, Invalid=660, Unknown=1, NotChecked=0, Total=812 [2023-11-29 04:00:45,902 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 512 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:45,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 518 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:00:45,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-29 04:00:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 386. [2023-11-29 04:00:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.4866666666666666) internal successors, (446), 349 states have internal predecessors, (446), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 04:00:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 514 transitions. [2023-11-29 04:00:45,949 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 514 transitions. Word has length 56 [2023-11-29 04:00:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:45,949 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 514 transitions. [2023-11-29 04:00:45,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 514 transitions. [2023-11-29 04:00:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 04:00:45,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:45,950 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:45,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-29 04:00:46,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 04:00:46,150 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:46,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:46,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1788379661, now seen corresponding path program 1 times [2023-11-29 04:00:46,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:46,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242307346] [2023-11-29 04:00:46,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:46,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:46,157 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:46,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557918862] [2023-11-29 04:00:46,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:46,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:46,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:46,158 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:46,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 04:00:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:46,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:00:46,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:00:46,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:46,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:46,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242307346] [2023-11-29 04:00:46,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:46,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557918862] [2023-11-29 04:00:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557918862] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:46,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:46,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:00:46,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153963847] [2023-11-29 04:00:46,486 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:46,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:00:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:00:46,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:00:46,488 INFO L87 Difference]: Start difference. First operand 386 states and 514 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 04:00:48,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:48,024 INFO L93 Difference]: Finished difference Result 467 states and 554 transitions. [2023-11-29 04:00:48,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:00:48,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2023-11-29 04:00:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:48,027 INFO L225 Difference]: With dead ends: 467 [2023-11-29 04:00:48,027 INFO L226 Difference]: Without dead ends: 466 [2023-11-29 04:00:48,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:00:48,028 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 319 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:48,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 731 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:00:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-29 04:00:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 386. [2023-11-29 04:00:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.4733333333333334) internal successors, (442), 349 states have internal predecessors, (442), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 04:00:48,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 510 transitions. [2023-11-29 04:00:48,077 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 510 transitions. Word has length 57 [2023-11-29 04:00:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:48,077 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 510 transitions. [2023-11-29 04:00:48,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 04:00:48,077 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 510 transitions. [2023-11-29 04:00:48,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 04:00:48,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:48,077 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:48,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 04:00:48,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 04:00:48,278 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:48,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:48,278 INFO L85 PathProgramCache]: Analyzing trace with hash -394805257, now seen corresponding path program 1 times [2023-11-29 04:00:48,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:48,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721584633] [2023-11-29 04:00:48,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:48,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:48,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:48,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43789630] [2023-11-29 04:00:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:48,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:48,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:48,288 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:48,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 04:00:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:48,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:00:48,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:48,853 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:00:48,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:48,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721584633] [2023-11-29 04:00:48,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43789630] [2023-11-29 04:00:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43789630] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:48,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:48,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:00:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259863486] [2023-11-29 04:00:48,994 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:48,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:00:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:00:48,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:00:48,996 INFO L87 Difference]: Start difference. First operand 386 states and 510 transitions. Second operand has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:50,512 INFO L93 Difference]: Finished difference Result 458 states and 542 transitions. [2023-11-29 04:00:50,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:00:50,512 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 58 [2023-11-29 04:00:50,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:50,514 INFO L225 Difference]: With dead ends: 458 [2023-11-29 04:00:50,514 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 04:00:50,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:00:50,515 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 616 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:50,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 493 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:00:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 04:00:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 386. [2023-11-29 04:00:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.4666666666666666) internal successors, (440), 349 states have internal predecessors, (440), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 04:00:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 508 transitions. [2023-11-29 04:00:50,558 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 508 transitions. Word has length 58 [2023-11-29 04:00:50,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:50,558 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 508 transitions. [2023-11-29 04:00:50,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:00:50,558 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 508 transitions. [2023-11-29 04:00:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 04:00:50,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:50,559 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:50,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 04:00:50,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 04:00:50,759 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:50,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:50,759 INFO L85 PathProgramCache]: Analyzing trace with hash -61768248, now seen corresponding path program 1 times [2023-11-29 04:00:50,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:50,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080713041] [2023-11-29 04:00:50,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:50,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:50,766 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:50,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310750059] [2023-11-29 04:00:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:50,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:50,767 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:50,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 04:00:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:50,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:00:50,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:00:50,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:00:51,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:51,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080713041] [2023-11-29 04:00:51,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:51,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310750059] [2023-11-29 04:00:51,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310750059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:00:51,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:00:51,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-11-29 04:00:51,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512671694] [2023-11-29 04:00:51,125 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:51,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:00:51,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:51,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:00:51,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:00:51,126 INFO L87 Difference]: Start difference. First operand 386 states and 508 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:00:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:51,947 INFO L93 Difference]: Finished difference Result 510 states and 640 transitions. [2023-11-29 04:00:51,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:00:51,947 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 60 [2023-11-29 04:00:51,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:51,950 INFO L225 Difference]: With dead ends: 510 [2023-11-29 04:00:51,950 INFO L226 Difference]: Without dead ends: 507 [2023-11-29 04:00:51,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:00:51,951 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 559 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:51,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 363 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:00:51,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-11-29 04:00:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 472. [2023-11-29 04:00:52,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 374 states have (on average 1.4224598930481283) internal successors, (532), 423 states have internal predecessors, (532), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:00:52,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 624 transitions. [2023-11-29 04:00:52,008 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 624 transitions. Word has length 60 [2023-11-29 04:00:52,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:52,009 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 624 transitions. [2023-11-29 04:00:52,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:00:52,009 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 624 transitions. [2023-11-29 04:00:52,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 04:00:52,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:52,009 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:52,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 04:00:52,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 04:00:52,210 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:52,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:52,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1914815574, now seen corresponding path program 1 times [2023-11-29 04:00:52,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:52,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756379643] [2023-11-29 04:00:52,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:52,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:52,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:52,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726561281] [2023-11-29 04:00:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:52,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:52,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:52,219 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:52,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 04:00:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:52,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:00:52,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:00:52,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:00:52,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:52,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756379643] [2023-11-29 04:00:52,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:52,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726561281] [2023-11-29 04:00:52,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726561281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:00:52,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:00:52,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:00:52,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265765047] [2023-11-29 04:00:52,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:00:52,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:00:52,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:00:52,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:00:52,369 INFO L87 Difference]: Start difference. First operand 472 states and 624 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:00:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:52,956 INFO L93 Difference]: Finished difference Result 502 states and 632 transitions. [2023-11-29 04:00:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:00:52,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-11-29 04:00:52,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:52,959 INFO L225 Difference]: With dead ends: 502 [2023-11-29 04:00:52,959 INFO L226 Difference]: Without dead ends: 501 [2023-11-29 04:00:52,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:00:52,960 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 270 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:52,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 206 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:00:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-11-29 04:00:53,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 472. [2023-11-29 04:00:53,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 374 states have (on average 1.4171122994652405) internal successors, (530), 423 states have internal predecessors, (530), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:00:53,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 622 transitions. [2023-11-29 04:00:53,024 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 622 transitions. Word has length 61 [2023-11-29 04:00:53,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:53,024 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 622 transitions. [2023-11-29 04:00:53,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:00:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 622 transitions. [2023-11-29 04:00:53,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 04:00:53,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:53,025 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:53,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 04:00:53,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 04:00:53,225 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:53,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:53,226 INFO L85 PathProgramCache]: Analyzing trace with hash 612881254, now seen corresponding path program 1 times [2023-11-29 04:00:53,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:53,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870733792] [2023-11-29 04:00:53,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:53,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:53,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:53,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099435053] [2023-11-29 04:00:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:53,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:53,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:53,234 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:53,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 04:00:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:53,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:00:53,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:53,389 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:00:53,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:57,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:57,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870733792] [2023-11-29 04:00:57,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:57,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099435053] [2023-11-29 04:00:57,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099435053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:57,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:57,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:00:57,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901605981] [2023-11-29 04:00:57,683 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:57,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:00:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:57,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:00:57,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2023-11-29 04:00:57,684 INFO L87 Difference]: Start difference. First operand 472 states and 622 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 04:00:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:59,237 INFO L93 Difference]: Finished difference Result 732 states and 901 transitions. [2023-11-29 04:00:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:00:59,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2023-11-29 04:00:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:59,242 INFO L225 Difference]: With dead ends: 732 [2023-11-29 04:00:59,242 INFO L226 Difference]: Without dead ends: 731 [2023-11-29 04:00:59,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=102, Invalid=317, Unknown=1, NotChecked=0, Total=420 [2023-11-29 04:00:59,243 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 536 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:59,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 754 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:00:59,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-11-29 04:00:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 502. [2023-11-29 04:00:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 400 states have (on average 1.4175) internal successors, (567), 449 states have internal predecessors, (567), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 04:00:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 667 transitions. [2023-11-29 04:00:59,348 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 667 transitions. Word has length 65 [2023-11-29 04:00:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:59,348 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 667 transitions. [2023-11-29 04:00:59,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 04:00:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 667 transitions. [2023-11-29 04:00:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 04:00:59,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:59,349 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:59,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 04:00:59,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 04:00:59,550 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:00:59,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash -82811428, now seen corresponding path program 1 times [2023-11-29 04:00:59,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968108933] [2023-11-29 04:00:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:59,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:59,558 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:59,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424609929] [2023-11-29 04:00:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:59,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:59,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:59,559 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:59,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 04:00:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:59,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:00:59,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:59,667 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:00:59,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:00:59,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:59,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968108933] [2023-11-29 04:00:59,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:59,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424609929] [2023-11-29 04:00:59,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424609929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:00:59,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:00:59,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:00:59,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869920585] [2023-11-29 04:00:59,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:00:59,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:00:59,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:59,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:00:59,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:00:59,669 INFO L87 Difference]: Start difference. First operand 502 states and 667 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:00,283 INFO L93 Difference]: Finished difference Result 531 states and 675 transitions. [2023-11-29 04:01:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:01:00,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2023-11-29 04:01:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:00,286 INFO L225 Difference]: With dead ends: 531 [2023-11-29 04:01:00,286 INFO L226 Difference]: Without dead ends: 529 [2023-11-29 04:01:00,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:01:00,287 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 291 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:00,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 266 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:01:00,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-11-29 04:01:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 502. [2023-11-29 04:01:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 400 states have (on average 1.4075) internal successors, (563), 449 states have internal predecessors, (563), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 04:01:00,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 663 transitions. [2023-11-29 04:01:00,361 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 663 transitions. Word has length 67 [2023-11-29 04:01:00,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:00,361 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 663 transitions. [2023-11-29 04:01:00,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:00,362 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 663 transitions. [2023-11-29 04:01:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 04:01:00,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:00,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:00,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 04:01:00,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 04:01:00,563 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:00,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:00,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1819449797, now seen corresponding path program 1 times [2023-11-29 04:01:00,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:00,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924531057] [2023-11-29 04:01:00,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:00,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:00,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:00,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797619443] [2023-11-29 04:01:00,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:00,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:00,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:00,572 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:00,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 04:01:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:00,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:01:00,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:01:00,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:00,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:00,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924531057] [2023-11-29 04:01:00,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:00,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797619443] [2023-11-29 04:01:00,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797619443] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:00,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:00,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:01:00,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772474337] [2023-11-29 04:01:00,735 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:00,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:01:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:00,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:01:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:01:00,736 INFO L87 Difference]: Start difference. First operand 502 states and 663 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:01:01,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:01,922 INFO L93 Difference]: Finished difference Result 611 states and 739 transitions. [2023-11-29 04:01:01,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:01:01,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2023-11-29 04:01:01,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:01,925 INFO L225 Difference]: With dead ends: 611 [2023-11-29 04:01:01,926 INFO L226 Difference]: Without dead ends: 610 [2023-11-29 04:01:01,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:01:01,926 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 529 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:01,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 723 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:01:01,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-11-29 04:01:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 532. [2023-11-29 04:01:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.403755868544601) internal successors, (598), 475 states have internal predecessors, (598), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 04:01:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 706 transitions. [2023-11-29 04:01:02,010 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 706 transitions. Word has length 66 [2023-11-29 04:01:02,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:02,010 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 706 transitions. [2023-11-29 04:01:02,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:01:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 706 transitions. [2023-11-29 04:01:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 04:01:02,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:02,010 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:02,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 04:01:02,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 04:01:02,211 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:02,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:02,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1727813147, now seen corresponding path program 1 times [2023-11-29 04:01:02,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:02,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446505241] [2023-11-29 04:01:02,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:02,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:02,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:02,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233154003] [2023-11-29 04:01:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:02,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:02,222 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:02,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 04:01:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:02,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:01:02,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:02,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:02,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:02,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446505241] [2023-11-29 04:01:02,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:02,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233154003] [2023-11-29 04:01:02,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233154003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:02,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:02,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:01:02,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200622657] [2023-11-29 04:01:02,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:02,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:01:02,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:01:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:01:02,317 INFO L87 Difference]: Start difference. First operand 532 states and 706 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:02,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:02,948 INFO L93 Difference]: Finished difference Result 559 states and 714 transitions. [2023-11-29 04:01:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:01:02,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2023-11-29 04:01:02,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:02,951 INFO L225 Difference]: With dead ends: 559 [2023-11-29 04:01:02,951 INFO L226 Difference]: Without dead ends: 557 [2023-11-29 04:01:02,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:01:02,952 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 280 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:02,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 271 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:01:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-29 04:01:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 532. [2023-11-29 04:01:03,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.3943661971830985) internal successors, (594), 475 states have internal predecessors, (594), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 04:01:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 702 transitions. [2023-11-29 04:01:03,026 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 702 transitions. Word has length 68 [2023-11-29 04:01:03,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:03,026 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 702 transitions. [2023-11-29 04:01:03,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:03,027 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 702 transitions. [2023-11-29 04:01:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 04:01:03,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:03,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:03,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 04:01:03,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 04:01:03,228 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:03,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:03,228 INFO L85 PathProgramCache]: Analyzing trace with hash 568368968, now seen corresponding path program 1 times [2023-11-29 04:01:03,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:03,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153778145] [2023-11-29 04:01:03,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:03,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:03,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:03,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68411285] [2023-11-29 04:01:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:03,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:03,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:03,239 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:03,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 04:01:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:03,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:01:03,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 04:01:03,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:03,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:03,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153778145] [2023-11-29 04:01:03,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:03,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68411285] [2023-11-29 04:01:03,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68411285] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:03,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:03,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:01:03,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733534936] [2023-11-29 04:01:03,783 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:03,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:01:03,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:03,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:01:03,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:01:03,784 INFO L87 Difference]: Start difference. First operand 532 states and 702 transitions. Second operand has 10 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 04:01:04,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:04,897 INFO L93 Difference]: Finished difference Result 589 states and 711 transitions. [2023-11-29 04:01:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:01:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 67 [2023-11-29 04:01:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:04,900 INFO L225 Difference]: With dead ends: 589 [2023-11-29 04:01:04,900 INFO L226 Difference]: Without dead ends: 588 [2023-11-29 04:01:04,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:01:04,901 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 521 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:04,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 518 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:01:04,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-11-29 04:01:04,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 532. [2023-11-29 04:01:04,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.392018779342723) internal successors, (593), 475 states have internal predecessors, (593), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 04:01:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 701 transitions. [2023-11-29 04:01:04,976 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 701 transitions. Word has length 67 [2023-11-29 04:01:04,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:04,976 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 701 transitions. [2023-11-29 04:01:04,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 04:01:04,976 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 701 transitions. [2023-11-29 04:01:04,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 04:01:04,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:04,977 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:04,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 04:01:05,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 04:01:05,177 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:05,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:05,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1723905366, now seen corresponding path program 1 times [2023-11-29 04:01:05,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:05,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084707018] [2023-11-29 04:01:05,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:05,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:05,184 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:05,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436080530] [2023-11-29 04:01:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:05,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:05,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:05,186 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:05,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 04:01:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:05,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:01:05,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:05,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:05,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:05,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084707018] [2023-11-29 04:01:05,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:05,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436080530] [2023-11-29 04:01:05,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436080530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:05,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:05,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:01:05,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048974274] [2023-11-29 04:01:05,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:05,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:01:05,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:05,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:01:05,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:01:05,282 INFO L87 Difference]: Start difference. First operand 532 states and 701 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:05,439 INFO L93 Difference]: Finished difference Result 656 states and 888 transitions. [2023-11-29 04:01:05,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:01:05,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-11-29 04:01:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:05,443 INFO L225 Difference]: With dead ends: 656 [2023-11-29 04:01:05,443 INFO L226 Difference]: Without dead ends: 655 [2023-11-29 04:01:05,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 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 04:01:05,444 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 30 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:05,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 220 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:01:05,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-11-29 04:01:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 612. [2023-11-29 04:01:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 492 states have (on average 1.4227642276422765) internal successors, (700), 541 states have internal predecessors, (700), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 04:01:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 836 transitions. [2023-11-29 04:01:05,528 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 836 transitions. Word has length 70 [2023-11-29 04:01:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:05,528 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 836 transitions. [2023-11-29 04:01:05,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 836 transitions. [2023-11-29 04:01:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:01:05,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:05,529 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:05,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 04:01:05,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:05,730 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:05,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:05,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1901458655, now seen corresponding path program 1 times [2023-11-29 04:01:05,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:05,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055237272] [2023-11-29 04:01:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:05,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:05,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:05,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572028792] [2023-11-29 04:01:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:05,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:05,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:05,737 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:05,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 04:01:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:05,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:01:05,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:05,850 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:05,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:05,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:05,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055237272] [2023-11-29 04:01:05,851 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:05,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572028792] [2023-11-29 04:01:05,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572028792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:05,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:05,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:01:05,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758215745] [2023-11-29 04:01:05,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:05,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:01:05,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:05,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:01:05,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:01:05,852 INFO L87 Difference]: Start difference. First operand 612 states and 836 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:06,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:06,737 INFO L93 Difference]: Finished difference Result 630 states and 836 transitions. [2023-11-29 04:01:06,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:01:06,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2023-11-29 04:01:06,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:06,742 INFO L225 Difference]: With dead ends: 630 [2023-11-29 04:01:06,742 INFO L226 Difference]: Without dead ends: 629 [2023-11-29 04:01:06,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:01:06,743 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 244 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:06,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 357 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:01:06,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2023-11-29 04:01:06,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 612. [2023-11-29 04:01:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 492 states have (on average 1.420731707317073) internal successors, (699), 541 states have internal predecessors, (699), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 04:01:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 835 transitions. [2023-11-29 04:01:06,832 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 835 transitions. Word has length 71 [2023-11-29 04:01:06,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:06,832 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 835 transitions. [2023-11-29 04:01:06,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 835 transitions. [2023-11-29 04:01:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 04:01:06,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:06,833 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:06,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-29 04:01:07,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:07,033 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:07,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:07,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1184323980, now seen corresponding path program 1 times [2023-11-29 04:01:07,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:07,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056036256] [2023-11-29 04:01:07,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:07,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:07,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:07,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431560121] [2023-11-29 04:01:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:07,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:07,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:07,042 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:07,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 04:01:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:07,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:01:07,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:07,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:07,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:07,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056036256] [2023-11-29 04:01:07,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:07,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431560121] [2023-11-29 04:01:07,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431560121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:07,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:07,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:01:07,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034047714] [2023-11-29 04:01:07,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:07,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:01:07,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:07,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:01:07,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:01:07,192 INFO L87 Difference]: Start difference. First operand 612 states and 835 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:07,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:07,342 INFO L93 Difference]: Finished difference Result 612 states and 835 transitions. [2023-11-29 04:01:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:01:07,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-11-29 04:01:07,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:07,347 INFO L225 Difference]: With dead ends: 612 [2023-11-29 04:01:07,347 INFO L226 Difference]: Without dead ends: 610 [2023-11-29 04:01:07,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 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 04:01:07,348 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:07,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 198 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:01:07,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-11-29 04:01:07,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2023-11-29 04:01:07,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 492 states have (on average 1.3983739837398375) internal successors, (688), 539 states have internal predecessors, (688), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 04:01:07,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 824 transitions. [2023-11-29 04:01:07,441 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 824 transitions. Word has length 72 [2023-11-29 04:01:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:07,441 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 824 transitions. [2023-11-29 04:01:07,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 824 transitions. [2023-11-29 04:01:07,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 04:01:07,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:07,442 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:07,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 04:01:07,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:07,642 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:07,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1940662141, now seen corresponding path program 1 times [2023-11-29 04:01:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:07,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243435457] [2023-11-29 04:01:07,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:07,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:07,649 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:07,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676198291] [2023-11-29 04:01:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:07,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:07,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:07,650 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:07,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 04:01:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:07,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:01:07,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:07,788 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:07,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:07,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:07,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243435457] [2023-11-29 04:01:07,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:07,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676198291] [2023-11-29 04:01:07,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676198291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:07,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:07,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:01:07,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721241707] [2023-11-29 04:01:07,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:07,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:01:07,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:07,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:01:07,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:01:07,790 INFO L87 Difference]: Start difference. First operand 610 states and 824 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:07,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:07,981 INFO L93 Difference]: Finished difference Result 727 states and 956 transitions. [2023-11-29 04:01:07,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:01:07,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-11-29 04:01:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:07,985 INFO L225 Difference]: With dead ends: 727 [2023-11-29 04:01:07,985 INFO L226 Difference]: Without dead ends: 725 [2023-11-29 04:01:07,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 04:01:07,985 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 105 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:07,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 246 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:01:07,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-11-29 04:01:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 642. [2023-11-29 04:01:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 522 states have (on average 1.396551724137931) internal successors, (729), 569 states have internal predecessors, (729), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 04:01:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 869 transitions. [2023-11-29 04:01:08,080 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 869 transitions. Word has length 73 [2023-11-29 04:01:08,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:08,080 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 869 transitions. [2023-11-29 04:01:08,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:08,081 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 869 transitions. [2023-11-29 04:01:08,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 04:01:08,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:08,081 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:08,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 04:01:08,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:08,282 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:08,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:08,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1322555015, now seen corresponding path program 1 times [2023-11-29 04:01:08,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:08,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041395320] [2023-11-29 04:01:08,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:08,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:08,290 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:08,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716342411] [2023-11-29 04:01:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:08,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:08,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:08,291 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:08,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 04:01:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:08,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:01:08,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:08,454 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:01:08,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:01:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041395320] [2023-11-29 04:01:08,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716342411] [2023-11-29 04:01:08,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716342411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:01:08,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:01:08,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:01:08,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145990739] [2023-11-29 04:01:08,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:08,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:01:08,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:08,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:01:08,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:01:08,618 INFO L87 Difference]: Start difference. First operand 642 states and 869 transitions. Second operand has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:01:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:11,212 INFO L93 Difference]: Finished difference Result 947 states and 1216 transitions. [2023-11-29 04:01:11,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:01:11,213 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 73 [2023-11-29 04:01:11,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:11,217 INFO L225 Difference]: With dead ends: 947 [2023-11-29 04:01:11,217 INFO L226 Difference]: Without dead ends: 945 [2023-11-29 04:01:11,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:01:11,218 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 975 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:11,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 854 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 04:01:11,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2023-11-29 04:01:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 690. [2023-11-29 04:01:11,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 564 states have (on average 1.375886524822695) internal successors, (776), 611 states have internal predecessors, (776), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 04:01:11,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 928 transitions. [2023-11-29 04:01:11,344 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 928 transitions. Word has length 73 [2023-11-29 04:01:11,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:11,345 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 928 transitions. [2023-11-29 04:01:11,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:01:11,345 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 928 transitions. [2023-11-29 04:01:11,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 04:01:11,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:11,346 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:11,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 04:01:11,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 04:01:11,546 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:11,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1950467609, now seen corresponding path program 1 times [2023-11-29 04:01:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:11,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564958086] [2023-11-29 04:01:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:11,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:11,555 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:11,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363866773] [2023-11-29 04:01:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:11,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:11,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:11,557 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:11,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 04:01:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:11,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:01:11,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:01:11,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:11,941 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:01:11,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564958086] [2023-11-29 04:01:11,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363866773] [2023-11-29 04:01:11,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363866773] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:01:11,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:01:11,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:01:11,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744215055] [2023-11-29 04:01:11,942 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:11,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:01:11,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:11,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:01:11,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:01:11,944 INFO L87 Difference]: Start difference. First operand 690 states and 928 transitions. Second operand has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:01:15,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:15,009 INFO L93 Difference]: Finished difference Result 964 states and 1185 transitions. [2023-11-29 04:01:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:01:15,009 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 74 [2023-11-29 04:01:15,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:15,013 INFO L225 Difference]: With dead ends: 964 [2023-11-29 04:01:15,013 INFO L226 Difference]: Without dead ends: 962 [2023-11-29 04:01:15,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 04:01:15,014 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 1599 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:15,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 555 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 04:01:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-29 04:01:15,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 768. [2023-11-29 04:01:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 633 states have (on average 1.3712480252764614) internal successors, (868), 680 states have internal predecessors, (868), 85 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 04:01:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1038 transitions. [2023-11-29 04:01:15,161 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1038 transitions. Word has length 74 [2023-11-29 04:01:15,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:15,161 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1038 transitions. [2023-11-29 04:01:15,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:01:15,161 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1038 transitions. [2023-11-29 04:01:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:01:15,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:15,162 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:15,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 04:01:15,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 04:01:15,363 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:15,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:15,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1459101963, now seen corresponding path program 1 times [2023-11-29 04:01:15,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:15,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122866206] [2023-11-29 04:01:15,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:15,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:15,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:15,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545814804] [2023-11-29 04:01:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:15,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:15,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:15,371 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:15,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 04:01:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:15,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:01:15,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:15,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:15,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:15,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122866206] [2023-11-29 04:01:15,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:15,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545814804] [2023-11-29 04:01:15,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545814804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:01:15,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:01:15,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:01:15,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245926414] [2023-11-29 04:01:15,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:15,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:01:15,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:15,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:01:15,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:01:15,605 INFO L87 Difference]: Start difference. First operand 768 states and 1038 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:01:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:18,111 INFO L93 Difference]: Finished difference Result 1070 states and 1412 transitions. [2023-11-29 04:01:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:01:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 80 [2023-11-29 04:01:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:18,116 INFO L225 Difference]: With dead ends: 1070 [2023-11-29 04:01:18,117 INFO L226 Difference]: Without dead ends: 1068 [2023-11-29 04:01:18,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2023-11-29 04:01:18,117 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 836 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:18,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 888 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 04:01:18,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-11-29 04:01:18,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 771. [2023-11-29 04:01:18,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 635 states have (on average 1.3480314960629922) internal successors, (856), 681 states have internal predecessors, (856), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:01:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1030 transitions. [2023-11-29 04:01:18,242 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1030 transitions. Word has length 80 [2023-11-29 04:01:18,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:18,243 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1030 transitions. [2023-11-29 04:01:18,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:01:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1030 transitions. [2023-11-29 04:01:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 04:01:18,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:18,244 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:18,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2023-11-29 04:01:18,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 04:01:18,444 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:18,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2012479284, now seen corresponding path program 1 times [2023-11-29 04:01:18,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:18,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200221984] [2023-11-29 04:01:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:18,452 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:18,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377504587] [2023-11-29 04:01:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:18,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:18,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:18,454 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:18,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 04:01:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:18,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:01:18,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:18,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:18,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:18,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200221984] [2023-11-29 04:01:18,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377504587] [2023-11-29 04:01:18,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377504587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:18,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:18,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:01:18,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795897730] [2023-11-29 04:01:18,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:18,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:01:18,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:18,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:01:18,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:01:18,574 INFO L87 Difference]: Start difference. First operand 771 states and 1030 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:19,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:19,310 INFO L93 Difference]: Finished difference Result 807 states and 1045 transitions. [2023-11-29 04:01:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:01:19,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-11-29 04:01:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:19,314 INFO L225 Difference]: With dead ends: 807 [2023-11-29 04:01:19,314 INFO L226 Difference]: Without dead ends: 805 [2023-11-29 04:01:19,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:01:19,315 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 413 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:19,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 339 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:01:19,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2023-11-29 04:01:19,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 771. [2023-11-29 04:01:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 635 states have (on average 1.330708661417323) internal successors, (845), 681 states have internal predecessors, (845), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:01:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1019 transitions. [2023-11-29 04:01:19,438 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1019 transitions. Word has length 81 [2023-11-29 04:01:19,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:19,438 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1019 transitions. [2023-11-29 04:01:19,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1019 transitions. [2023-11-29 04:01:19,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 04:01:19,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:19,439 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:19,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 04:01:19,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:19,639 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:19,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:19,640 INFO L85 PathProgramCache]: Analyzing trace with hash 596258316, now seen corresponding path program 1 times [2023-11-29 04:01:19,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:19,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138633170] [2023-11-29 04:01:19,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:19,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:19,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:19,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797116664] [2023-11-29 04:01:19,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:19,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:19,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:19,648 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:19,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 04:01:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:19,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:01:19,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:19,882 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:19,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:19,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138633170] [2023-11-29 04:01:19,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797116664] [2023-11-29 04:01:19,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797116664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:19,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:19,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:01:19,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375739897] [2023-11-29 04:01:19,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:19,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:01:19,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:19,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:01:19,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:01:19,885 INFO L87 Difference]: Start difference. First operand 771 states and 1019 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:20,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:20,166 INFO L93 Difference]: Finished difference Result 797 states and 1025 transitions. [2023-11-29 04:01:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:01:20,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-11-29 04:01:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:20,170 INFO L225 Difference]: With dead ends: 797 [2023-11-29 04:01:20,171 INFO L226 Difference]: Without dead ends: 796 [2023-11-29 04:01:20,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:01:20,171 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 113 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:20,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 277 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:01:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-11-29 04:01:20,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 771. [2023-11-29 04:01:20,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 635 states have (on average 1.3291338582677166) internal successors, (844), 681 states have internal predecessors, (844), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:01:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1018 transitions. [2023-11-29 04:01:20,303 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1018 transitions. Word has length 81 [2023-11-29 04:01:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:20,304 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1018 transitions. [2023-11-29 04:01:20,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1018 transitions. [2023-11-29 04:01:20,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 04:01:20,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:20,305 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:20,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 04:01:20,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:20,505 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:20,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1304138771, now seen corresponding path program 1 times [2023-11-29 04:01:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:20,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451927451] [2023-11-29 04:01:20,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:20,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:20,514 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:20,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442624883] [2023-11-29 04:01:20,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:20,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:20,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:20,515 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:20,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 04:01:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:20,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:01:20,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:20,742 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:20,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:20,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451927451] [2023-11-29 04:01:20,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442624883] [2023-11-29 04:01:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442624883] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:20,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:20,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:01:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525915450] [2023-11-29 04:01:20,819 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:20,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:01:20,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:20,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:01:20,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:01:20,820 INFO L87 Difference]: Start difference. First operand 771 states and 1018 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:21,140 INFO L93 Difference]: Finished difference Result 907 states and 1153 transitions. [2023-11-29 04:01:21,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:01:21,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-11-29 04:01:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:21,146 INFO L225 Difference]: With dead ends: 907 [2023-11-29 04:01:21,146 INFO L226 Difference]: Without dead ends: 906 [2023-11-29 04:01:21,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:01:21,147 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 234 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:21,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 302 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:01:21,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-29 04:01:21,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 780. [2023-11-29 04:01:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 644 states have (on average 1.326086956521739) internal successors, (854), 690 states have internal predecessors, (854), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:01:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1028 transitions. [2023-11-29 04:01:21,312 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1028 transitions. Word has length 82 [2023-11-29 04:01:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:21,313 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1028 transitions. [2023-11-29 04:01:21,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:21,313 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1028 transitions. [2023-11-29 04:01:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 04:01:21,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:21,313 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:21,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 04:01:21,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:21,514 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:21,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:21,514 INFO L85 PathProgramCache]: Analyzing trace with hash -321743152, now seen corresponding path program 1 times [2023-11-29 04:01:21,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:21,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291240540] [2023-11-29 04:01:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:21,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:21,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:21,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397817557] [2023-11-29 04:01:21,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:21,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:21,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:21,522 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:21,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 04:01:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:21,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:01:21,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:21,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:21,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:21,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291240540] [2023-11-29 04:01:21,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:21,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397817557] [2023-11-29 04:01:21,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397817557] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:01:21,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:01:21,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:01:21,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528936498] [2023-11-29 04:01:21,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:21,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:01:21,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:01:21,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:01:21,763 INFO L87 Difference]: Start difference. First operand 780 states and 1028 transitions. Second operand has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:01:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:23,434 INFO L93 Difference]: Finished difference Result 1226 states and 1570 transitions. [2023-11-29 04:01:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 04:01:23,434 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 84 [2023-11-29 04:01:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:23,439 INFO L225 Difference]: With dead ends: 1226 [2023-11-29 04:01:23,440 INFO L226 Difference]: Without dead ends: 1224 [2023-11-29 04:01:23,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=545, Invalid=1261, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 04:01:23,441 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 1193 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:23,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 565 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:01:23,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2023-11-29 04:01:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1129. [2023-11-29 04:01:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 949 states have (on average 1.327713382507903) internal successors, (1260), 994 states have internal predecessors, (1260), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 04:01:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1524 transitions. [2023-11-29 04:01:23,654 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1524 transitions. Word has length 84 [2023-11-29 04:01:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:23,654 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1524 transitions. [2023-11-29 04:01:23,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:01:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1524 transitions. [2023-11-29 04:01:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 04:01:23,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:23,655 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:23,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 04:01:23,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:23,855 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:23,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash -853086347, now seen corresponding path program 1 times [2023-11-29 04:01:23,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:23,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675473551] [2023-11-29 04:01:23,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:23,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:23,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:23,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667126662] [2023-11-29 04:01:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:23,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:23,866 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:23,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 04:01:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:23,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:01:23,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:24,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:01:24,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:24,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675473551] [2023-11-29 04:01:24,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:24,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667126662] [2023-11-29 04:01:24,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667126662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:24,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:24,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:01:24,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723602956] [2023-11-29 04:01:24,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:24,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:01:24,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:24,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:01:24,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:01:24,177 INFO L87 Difference]: Start difference. First operand 1129 states and 1524 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:24,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:24,636 INFO L93 Difference]: Finished difference Result 1153 states and 1530 transitions. [2023-11-29 04:01:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:01:24,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-11-29 04:01:24,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:24,643 INFO L225 Difference]: With dead ends: 1153 [2023-11-29 04:01:24,643 INFO L226 Difference]: Without dead ends: 1152 [2023-11-29 04:01:24,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:01:24,644 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 93 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:24,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 389 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:01:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2023-11-29 04:01:24,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1129. [2023-11-29 04:01:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 949 states have (on average 1.3266596417281349) internal successors, (1259), 994 states have internal predecessors, (1259), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 04:01:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1523 transitions. [2023-11-29 04:01:24,847 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1523 transitions. Word has length 84 [2023-11-29 04:01:24,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:24,848 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1523 transitions. [2023-11-29 04:01:24,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1523 transitions. [2023-11-29 04:01:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 04:01:24,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:24,849 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:24,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 04:01:25,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:25,049 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:25,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:25,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1639016631, now seen corresponding path program 1 times [2023-11-29 04:01:25,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:25,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89996684] [2023-11-29 04:01:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:25,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:25,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:25,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61955583] [2023-11-29 04:01:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:25,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:25,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:25,057 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:25,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 04:01:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:25,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:01:25,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:25,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:25,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89996684] [2023-11-29 04:01:25,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61955583] [2023-11-29 04:01:25,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61955583] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:25,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:25,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:01:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467567137] [2023-11-29 04:01:25,391 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:25,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:01:25,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:25,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:01:25,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:01:25,392 INFO L87 Difference]: Start difference. First operand 1129 states and 1523 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:26,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:26,163 INFO L93 Difference]: Finished difference Result 1206 states and 1563 transitions. [2023-11-29 04:01:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:01:26,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2023-11-29 04:01:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:26,169 INFO L225 Difference]: With dead ends: 1206 [2023-11-29 04:01:26,169 INFO L226 Difference]: Without dead ends: 1205 [2023-11-29 04:01:26,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:01:26,170 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 152 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:26,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 606 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:01:26,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2023-11-29 04:01:26,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1131. [2023-11-29 04:01:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 951 states have (on average 1.3259726603575184) internal successors, (1261), 996 states have internal predecessors, (1261), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 04:01:26,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1525 transitions. [2023-11-29 04:01:26,363 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1525 transitions. Word has length 90 [2023-11-29 04:01:26,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:26,363 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1525 transitions. [2023-11-29 04:01:26,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:01:26,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1525 transitions. [2023-11-29 04:01:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 04:01:26,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:26,364 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:26,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 04:01:26,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 04:01:26,565 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:26,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1247677153, now seen corresponding path program 1 times [2023-11-29 04:01:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:26,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131742122] [2023-11-29 04:01:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:26,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:26,573 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:26,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134450444] [2023-11-29 04:01:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:26,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:26,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:26,575 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:26,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 04:01:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:26,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:01:26,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:01:27,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:01:27,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131742122] [2023-11-29 04:01:27,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:01:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134450444] [2023-11-29 04:01:27,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134450444] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:01:27,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:01:27,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:01:27,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966673602] [2023-11-29 04:01:27,369 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:01:27,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:01:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:01:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:01:27,371 INFO L87 Difference]: Start difference. First operand 1131 states and 1525 transitions. Second operand has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:29,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:01:29,312 INFO L93 Difference]: Finished difference Result 2205 states and 2971 transitions. [2023-11-29 04:01:29,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:01:29,312 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 90 [2023-11-29 04:01:29,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:01:29,319 INFO L225 Difference]: With dead ends: 2205 [2023-11-29 04:01:29,319 INFO L226 Difference]: Without dead ends: 1465 [2023-11-29 04:01:29,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=815, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:01:29,321 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 507 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:01:29,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 785 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:01:29,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2023-11-29 04:01:29,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1146. [2023-11-29 04:01:29,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 966 states have (on average 1.3229813664596273) internal successors, (1278), 1011 states have internal predecessors, (1278), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 04:01:29,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1542 transitions. [2023-11-29 04:01:29,531 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1542 transitions. Word has length 90 [2023-11-29 04:01:29,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:01:29,531 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1542 transitions. [2023-11-29 04:01:29,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:01:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1542 transitions. [2023-11-29 04:01:29,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 04:01:29,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:01:29,532 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:29,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 04:01:29,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 04:01:29,733 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:01:29,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash -730091840, now seen corresponding path program 1 times [2023-11-29 04:01:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22248545] [2023-11-29 04:01:29,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:29,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:29,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:01:29,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633185552] [2023-11-29 04:01:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:29,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:01:29,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:01:29,741 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:01:29,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 04:01:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:29,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:01:29,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:01:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:01:30,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:02:10,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:10,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22248545] [2023-11-29 04:02:10,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:02:10,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633185552] [2023-11-29 04:02:10,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633185552] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:10,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:02:10,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:02:10,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14211304] [2023-11-29 04:02:10,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:10,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:02:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:02:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=120, Unknown=10, NotChecked=0, Total=182 [2023-11-29 04:02:10,529 INFO L87 Difference]: Start difference. First operand 1146 states and 1542 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:02:38,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:02:49,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:49,455 INFO L93 Difference]: Finished difference Result 2065 states and 2649 transitions. [2023-11-29 04:02:49,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:02:49,456 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2023-11-29 04:02:49,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:49,460 INFO L225 Difference]: With dead ends: 2065 [2023-11-29 04:02:49,461 INFO L226 Difference]: Without dead ends: 2063 [2023-11-29 04:02:49,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 72.8s TimeCoverageRelationStatistics Valid=219, Invalid=413, Unknown=18, NotChecked=0, Total=650 [2023-11-29 04:02:49,461 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1321 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:49,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 930 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-29 04:02:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2023-11-29 04:02:49,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1239. [2023-11-29 04:02:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1050 states have (on average 1.3257142857142856) internal successors, (1392), 1095 states have internal predecessors, (1392), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:02:49,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1674 transitions. [2023-11-29 04:02:49,706 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1674 transitions. Word has length 91 [2023-11-29 04:02:49,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:49,706 INFO L495 AbstractCegarLoop]: Abstraction has 1239 states and 1674 transitions. [2023-11-29 04:02:49,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:02:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1674 transitions. [2023-11-29 04:02:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 04:02:49,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:49,707 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:02:49,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 04:02:49,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 04:02:49,908 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:02:49,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:49,908 INFO L85 PathProgramCache]: Analyzing trace with hash 68039188, now seen corresponding path program 1 times [2023-11-29 04:02:49,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:49,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818555629] [2023-11-29 04:02:49,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:49,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:49,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:02:49,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970823462] [2023-11-29 04:02:49,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:49,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:49,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:49,916 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:49,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 04:02:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:49,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 04:02:49,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:50,483 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:02:50,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:54,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818555629] [2023-11-29 04:02:54,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:02:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970823462] [2023-11-29 04:02:54,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970823462] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:54,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:02:54,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:02:54,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846312145] [2023-11-29 04:02:54,795 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:54,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:02:54,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:54,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:02:54,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2023-11-29 04:02:54,796 INFO L87 Difference]: Start difference. First operand 1239 states and 1674 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:02:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:56,267 INFO L93 Difference]: Finished difference Result 1596 states and 2131 transitions. [2023-11-29 04:02:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:02:56,267 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2023-11-29 04:02:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:56,272 INFO L225 Difference]: With dead ends: 1596 [2023-11-29 04:02:56,272 INFO L226 Difference]: Without dead ends: 1594 [2023-11-29 04:02:56,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=104, Invalid=495, Unknown=1, NotChecked=0, Total=600 [2023-11-29 04:02:56,273 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 579 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:56,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 549 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:02:56,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2023-11-29 04:02:56,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1239. [2023-11-29 04:02:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1050 states have (on average 1.3238095238095238) internal successors, (1390), 1095 states have internal predecessors, (1390), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:02:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1672 transitions. [2023-11-29 04:02:56,523 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1672 transitions. Word has length 91 [2023-11-29 04:02:56,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:56,524 INFO L495 AbstractCegarLoop]: Abstraction has 1239 states and 1672 transitions. [2023-11-29 04:02:56,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:02:56,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1672 transitions. [2023-11-29 04:02:56,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 04:02:56,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:56,525 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:02:56,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 04:02:56,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 04:02:56,725 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:02:56,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:56,726 INFO L85 PathProgramCache]: Analyzing trace with hash 23286158, now seen corresponding path program 1 times [2023-11-29 04:02:56,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:56,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736953402] [2023-11-29 04:02:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:56,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:02:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [192401993] [2023-11-29 04:02:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:56,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:56,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:56,733 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:56,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 04:02:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:56,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:02:56,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:02:57,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:57,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:57,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736953402] [2023-11-29 04:02:57,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:02:57,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192401993] [2023-11-29 04:02:57,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192401993] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:57,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:02:57,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:02:57,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065782277] [2023-11-29 04:02:57,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:57,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:02:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:57,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:02:57,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:02:57,598 INFO L87 Difference]: Start difference. First operand 1239 states and 1672 transitions. Second operand has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:02:59,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:59,304 INFO L93 Difference]: Finished difference Result 1603 states and 2138 transitions. [2023-11-29 04:02:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:02:59,304 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2023-11-29 04:02:59,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:59,313 INFO L225 Difference]: With dead ends: 1603 [2023-11-29 04:02:59,313 INFO L226 Difference]: Without dead ends: 1601 [2023-11-29 04:02:59,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=815, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:02:59,314 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 496 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:59,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 748 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:02:59,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2023-11-29 04:02:59,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1241. [2023-11-29 04:02:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1052 states have (on average 1.3231939163498099) internal successors, (1392), 1097 states have internal predecessors, (1392), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:02:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1674 transitions. [2023-11-29 04:02:59,564 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1674 transitions. Word has length 91 [2023-11-29 04:02:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:59,565 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1674 transitions. [2023-11-29 04:02:59,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:02:59,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1674 transitions. [2023-11-29 04:02:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 04:02:59,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:59,566 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:59,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 04:02:59,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 04:02:59,766 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:02:59,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1158010407, now seen corresponding path program 1 times [2023-11-29 04:02:59,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:59,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770419042] [2023-11-29 04:02:59,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:59,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:59,772 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:02:59,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368913711] [2023-11-29 04:02:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:59,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:59,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:59,774 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:59,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 04:02:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:59,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:02:59,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-29 04:02:59,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:10,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:10,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770419042] [2023-11-29 04:03:10,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:03:10,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368913711] [2023-11-29 04:03:10,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368913711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:10,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:03:10,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:03:10,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721282741] [2023-11-29 04:03:10,634 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:10,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:03:10,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:10,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:03:10,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2023-11-29 04:03:10,635 INFO L87 Difference]: Start difference. First operand 1241 states and 1674 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:11,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:11,329 INFO L93 Difference]: Finished difference Result 1297 states and 1700 transitions. [2023-11-29 04:03:11,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:03:11,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2023-11-29 04:03:11,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:11,333 INFO L225 Difference]: With dead ends: 1297 [2023-11-29 04:03:11,333 INFO L226 Difference]: Without dead ends: 1296 [2023-11-29 04:03:11,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=44, Invalid=86, Unknown=2, NotChecked=0, Total=132 [2023-11-29 04:03:11,334 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 112 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:11,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 429 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:03:11,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2023-11-29 04:03:11,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1244. [2023-11-29 04:03:11,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1055 states have (on average 1.3232227488151658) internal successors, (1396), 1100 states have internal predecessors, (1396), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:03:11,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1678 transitions. [2023-11-29 04:03:11,588 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1678 transitions. Word has length 92 [2023-11-29 04:03:11,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:11,588 INFO L495 AbstractCegarLoop]: Abstraction has 1244 states and 1678 transitions. [2023-11-29 04:03:11,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1678 transitions. [2023-11-29 04:03:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 04:03:11,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:11,589 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:11,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2023-11-29 04:03:11,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:11,790 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:03:11,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1538584094, now seen corresponding path program 1 times [2023-11-29 04:03:11,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:11,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312848728] [2023-11-29 04:03:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:11,798 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:03:11,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276522069] [2023-11-29 04:03:11,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:11,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:11,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:11,799 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:11,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 04:03:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:11,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:03:11,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:03:12,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:12,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:12,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312848728] [2023-11-29 04:03:12,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:03:12,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276522069] [2023-11-29 04:03:12,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276522069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:12,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:03:12,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:03:12,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11870989] [2023-11-29 04:03:12,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:12,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:03:12,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:03:12,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:03:12,288 INFO L87 Difference]: Start difference. First operand 1244 states and 1678 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:13,427 INFO L93 Difference]: Finished difference Result 1315 states and 1711 transitions. [2023-11-29 04:03:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:03:13,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2023-11-29 04:03:13,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:13,430 INFO L225 Difference]: With dead ends: 1315 [2023-11-29 04:03:13,430 INFO L226 Difference]: Without dead ends: 1314 [2023-11-29 04:03:13,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:03:13,431 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 157 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:13,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 702 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:03:13,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2023-11-29 04:03:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1245. [2023-11-29 04:03:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1056 states have (on average 1.3229166666666667) internal successors, (1397), 1101 states have internal predecessors, (1397), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:03:13,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1679 transitions. [2023-11-29 04:03:13,677 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1679 transitions. Word has length 93 [2023-11-29 04:03:13,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:13,677 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1679 transitions. [2023-11-29 04:03:13,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1679 transitions. [2023-11-29 04:03:13,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 04:03:13,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:13,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:13,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 04:03:13,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:13,878 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:03:13,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:13,879 INFO L85 PathProgramCache]: Analyzing trace with hash -451466501, now seen corresponding path program 1 times [2023-11-29 04:03:13,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:13,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624612207] [2023-11-29 04:03:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:13,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:13,886 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:03:13,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875016683] [2023-11-29 04:03:13,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:13,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:13,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:13,888 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:13,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 04:03:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:13,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:03:13,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:03:14,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:14,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:14,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624612207] [2023-11-29 04:03:14,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:03:14,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875016683] [2023-11-29 04:03:14,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875016683] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:14,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:03:14,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:03:14,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45392349] [2023-11-29 04:03:14,263 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:14,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:03:14,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:14,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:03:14,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:03:14,264 INFO L87 Difference]: Start difference. First operand 1245 states and 1679 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:15,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:15,365 INFO L93 Difference]: Finished difference Result 1309 states and 1708 transitions. [2023-11-29 04:03:15,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:03:15,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-11-29 04:03:15,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:15,368 INFO L225 Difference]: With dead ends: 1309 [2023-11-29 04:03:15,368 INFO L226 Difference]: Without dead ends: 1308 [2023-11-29 04:03:15,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:03:15,369 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 252 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:15,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 676 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:03:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2023-11-29 04:03:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1254. [2023-11-29 04:03:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1065 states have (on average 1.3211267605633803) internal successors, (1407), 1110 states have internal predecessors, (1407), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:03:15,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1689 transitions. [2023-11-29 04:03:15,617 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1689 transitions. Word has length 94 [2023-11-29 04:03:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:15,617 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 1689 transitions. [2023-11-29 04:03:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:15,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1689 transitions. [2023-11-29 04:03:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 04:03:15,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:15,618 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:15,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 04:03:15,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:15,818 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:03:15,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:15,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1110559484, now seen corresponding path program 1 times [2023-11-29 04:03:15,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:15,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371794494] [2023-11-29 04:03:15,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:15,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:15,828 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:03:15,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145868546] [2023-11-29 04:03:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:15,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:15,830 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:15,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 04:03:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:15,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:03:15,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:16,172 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:03:16,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:16,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:16,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371794494] [2023-11-29 04:03:16,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:03:16,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145868546] [2023-11-29 04:03:16,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145868546] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:16,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:03:16,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:03:16,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501995995] [2023-11-29 04:03:16,268 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:16,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:03:16,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:16,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:03:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:03:16,270 INFO L87 Difference]: Start difference. First operand 1254 states and 1689 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:16,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:16,936 INFO L93 Difference]: Finished difference Result 1307 states and 1707 transitions. [2023-11-29 04:03:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:03:16,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 95 [2023-11-29 04:03:16,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:16,939 INFO L225 Difference]: With dead ends: 1307 [2023-11-29 04:03:16,939 INFO L226 Difference]: Without dead ends: 1306 [2023-11-29 04:03:16,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:03:16,939 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 196 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:16,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 641 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:03:16,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2023-11-29 04:03:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1255. [2023-11-29 04:03:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1066 states have (on average 1.320825515947467) internal successors, (1408), 1111 states have internal predecessors, (1408), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:03:17,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1690 transitions. [2023-11-29 04:03:17,220 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1690 transitions. Word has length 95 [2023-11-29 04:03:17,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:17,220 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1690 transitions. [2023-11-29 04:03:17,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:03:17,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1690 transitions. [2023-11-29 04:03:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 04:03:17,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:17,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:17,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2023-11-29 04:03:17,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-29 04:03:17,422 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:03:17,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash 252882072, now seen corresponding path program 1 times [2023-11-29 04:03:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:17,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578127217] [2023-11-29 04:03:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:17,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:03:17,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317781213] [2023-11-29 04:03:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:17,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:17,435 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:17,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 04:03:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:17,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 04:03:17,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 04:03:21,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:22,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:22,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578127217] [2023-11-29 04:03:22,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:03:22,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317781213] [2023-11-29 04:03:22,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317781213] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:22,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:03:22,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:03:22,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217145191] [2023-11-29 04:03:22,866 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:22,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:03:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:03:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:03:22,867 INFO L87 Difference]: Start difference. First operand 1255 states and 1690 transitions. Second operand has 17 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:03:27,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:03:31,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:03:38,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:03:42,894 WARN L539 Checker$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 04:03:47,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:03:48,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:03:52,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:03:57,044 WARN L539 Checker$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 04:04:01,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:04:05,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:04:07,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:04:09,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:09,546 INFO L93 Difference]: Finished difference Result 1606 states and 2143 transitions. [2023-11-29 04:04:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:04:09,547 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 95 [2023-11-29 04:04:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:09,550 INFO L225 Difference]: With dead ends: 1606 [2023-11-29 04:04:09,550 INFO L226 Difference]: Without dead ends: 1605 [2023-11-29 04:04:09,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=201, Invalid=989, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 04:04:09,550 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 378 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 16 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:09,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 900 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1911 Invalid, 7 Unknown, 0 Unchecked, 43.0s Time] [2023-11-29 04:04:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-11-29 04:04:09,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1256. [2023-11-29 04:04:09,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1067 states have (on average 1.3205248359887536) internal successors, (1409), 1112 states have internal predecessors, (1409), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:04:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1691 transitions. [2023-11-29 04:04:09,835 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1691 transitions. Word has length 95 [2023-11-29 04:04:09,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:09,836 INFO L495 AbstractCegarLoop]: Abstraction has 1256 states and 1691 transitions. [2023-11-29 04:04:09,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:04:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1691 transitions. [2023-11-29 04:04:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 04:04:09,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:09,836 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:09,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 04:04:10,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-29 04:04:10,037 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:04:10,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:10,037 INFO L85 PathProgramCache]: Analyzing trace with hash -67605475, now seen corresponding path program 1 times [2023-11-29 04:04:10,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:10,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965110019] [2023-11-29 04:04:10,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:10,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:10,044 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:04:10,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771555448] [2023-11-29 04:04:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:10,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:10,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:10,045 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:10,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 04:04:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:10,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:04:10,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-29 04:04:10,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:17,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965110019] [2023-11-29 04:04:17,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:04:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771555448] [2023-11-29 04:04:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771555448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:17,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:04:17,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:04:17,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530119017] [2023-11-29 04:04:17,567 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:17,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:04:17,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:17,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:04:17,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2023-11-29 04:04:17,568 INFO L87 Difference]: Start difference. First operand 1256 states and 1691 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:04:18,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:18,355 INFO L93 Difference]: Finished difference Result 1314 states and 1718 transitions. [2023-11-29 04:04:18,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:04:18,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 96 [2023-11-29 04:04:18,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:18,359 INFO L225 Difference]: With dead ends: 1314 [2023-11-29 04:04:18,359 INFO L226 Difference]: Without dead ends: 1313 [2023-11-29 04:04:18,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=25, Invalid=63, Unknown=2, NotChecked=0, Total=90 [2023-11-29 04:04:18,359 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 99 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:18,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 652 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:04:18,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2023-11-29 04:04:18,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1259. [2023-11-29 04:04:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1070 states have (on average 1.3214953271028038) internal successors, (1414), 1115 states have internal predecessors, (1414), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:04:18,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1696 transitions. [2023-11-29 04:04:18,614 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1696 transitions. Word has length 96 [2023-11-29 04:04:18,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:18,615 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1696 transitions. [2023-11-29 04:04:18,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:04:18,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1696 transitions. [2023-11-29 04:04:18,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 04:04:18,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:18,615 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:18,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 04:04:18,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 04:04:18,816 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:04:18,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:18,816 INFO L85 PathProgramCache]: Analyzing trace with hash -750590174, now seen corresponding path program 1 times [2023-11-29 04:04:18,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:18,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535666460] [2023-11-29 04:04:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:18,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:18,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:04:18,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740224964] [2023-11-29 04:04:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:18,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:18,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:18,824 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:18,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 04:04:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:18,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 04:04:18,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 04:04:20,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:25,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:25,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535666460] [2023-11-29 04:04:25,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:04:25,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740224964] [2023-11-29 04:04:25,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740224964] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:25,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:04:25,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:04:25,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195548323] [2023-11-29 04:04:25,307 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:25,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:04:25,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:25,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:04:25,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=422, Unknown=1, NotChecked=0, Total=506 [2023-11-29 04:04:25,308 INFO L87 Difference]: Start difference. First operand 1259 states and 1696 transitions. Second operand has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 04:04:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:28,658 INFO L93 Difference]: Finished difference Result 1608 states and 2147 transitions. [2023-11-29 04:04:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:04:28,658 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 96 [2023-11-29 04:04:28,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:28,661 INFO L225 Difference]: With dead ends: 1608 [2023-11-29 04:04:28,661 INFO L226 Difference]: Without dead ends: 1607 [2023-11-29 04:04:28,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=132, Invalid=679, Unknown=1, NotChecked=0, Total=812 [2023-11-29 04:04:28,662 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 357 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:28,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 681 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 04:04:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2023-11-29 04:04:28,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1260. [2023-11-29 04:04:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1071 states have (on average 1.3211951447245565) internal successors, (1415), 1116 states have internal predecessors, (1415), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:04:28,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1697 transitions. [2023-11-29 04:04:28,938 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1697 transitions. Word has length 96 [2023-11-29 04:04:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:28,938 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 1697 transitions. [2023-11-29 04:04:28,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 04:04:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1697 transitions. [2023-11-29 04:04:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 04:04:28,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:28,939 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:28,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2023-11-29 04:04:29,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:29,140 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:04:29,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2095769562, now seen corresponding path program 1 times [2023-11-29 04:04:29,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:29,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906679345] [2023-11-29 04:04:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:29,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:29,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:04:29,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101935987] [2023-11-29 04:04:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:29,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:29,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:29,150 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:29,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 04:04:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:29,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:04:29,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-29 04:04:29,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:29,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:29,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906679345] [2023-11-29 04:04:29,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:04:29,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101935987] [2023-11-29 04:04:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101935987] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:29,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:04:29,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:04:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034481876] [2023-11-29 04:04:29,462 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:29,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:04:29,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:29,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:04:29,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:04:29,462 INFO L87 Difference]: Start difference. First operand 1260 states and 1697 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:04:30,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:30,368 INFO L93 Difference]: Finished difference Result 1298 states and 1706 transitions. [2023-11-29 04:04:30,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:04:30,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2023-11-29 04:04:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:30,372 INFO L225 Difference]: With dead ends: 1298 [2023-11-29 04:04:30,372 INFO L226 Difference]: Without dead ends: 1297 [2023-11-29 04:04:30,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:04:30,373 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 144 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:30,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 587 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:04:30,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2023-11-29 04:04:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1262. [2023-11-29 04:04:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1073 states have (on average 1.320596458527493) internal successors, (1417), 1118 states have internal predecessors, (1417), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 04:04:30,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1699 transitions. [2023-11-29 04:04:30,696 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1699 transitions. Word has length 97 [2023-11-29 04:04:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:30,696 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 1699 transitions. [2023-11-29 04:04:30,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:04:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1699 transitions. [2023-11-29 04:04:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 04:04:30,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:30,697 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:30,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 04:04:30,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 04:04:30,898 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:04:30,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:30,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1793458726, now seen corresponding path program 1 times [2023-11-29 04:04:30,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:30,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82502092] [2023-11-29 04:04:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:30,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:30,905 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:04:30,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364439543] [2023-11-29 04:04:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:30,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:30,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:30,907 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:30,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 04:04:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:30,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:04:30,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:31,701 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:04:31,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:33,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82502092] [2023-11-29 04:04:33,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:04:33,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364439543] [2023-11-29 04:04:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364439543] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:33,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:04:33,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:04:33,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205681712] [2023-11-29 04:04:33,786 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:33,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:04:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:33,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:04:33,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=212, Unknown=1, NotChecked=0, Total=272 [2023-11-29 04:04:33,787 INFO L87 Difference]: Start difference. First operand 1262 states and 1699 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:04:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:35,401 INFO L93 Difference]: Finished difference Result 1624 states and 2165 transitions. [2023-11-29 04:04:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:04:35,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2023-11-29 04:04:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:35,405 INFO L225 Difference]: With dead ends: 1624 [2023-11-29 04:04:35,405 INFO L226 Difference]: Without dead ends: 1622 [2023-11-29 04:04:35,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=115, Invalid=390, Unknown=1, NotChecked=0, Total=506 [2023-11-29 04:04:35,406 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 391 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:35,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 610 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:04:35,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-11-29 04:04:35,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1271. [2023-11-29 04:04:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1081 states have (on average 1.3182238667900092) internal successors, (1425), 1126 states have internal predecessors, (1425), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2023-11-29 04:04:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1709 transitions. [2023-11-29 04:04:35,680 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1709 transitions. Word has length 97 [2023-11-29 04:04:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:35,680 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 1709 transitions. [2023-11-29 04:04:35,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:04:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1709 transitions. [2023-11-29 04:04:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 04:04:35,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:35,681 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:35,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 04:04:35,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:35,881 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:04:35,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash 237354532, now seen corresponding path program 1 times [2023-11-29 04:04:35,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:35,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845620025] [2023-11-29 04:04:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:35,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:35,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:04:35,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508547875] [2023-11-29 04:04:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:35,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:35,890 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:35,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 04:04:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:35,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:04:35,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:37,238 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:04:37,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:38,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:38,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845620025] [2023-11-29 04:04:38,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:04:38,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508547875] [2023-11-29 04:04:38,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508547875] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:38,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:04:38,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:04:38,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745756697] [2023-11-29 04:04:38,067 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:38,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:04:38,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:38,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:04:38,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:04:38,067 INFO L87 Difference]: Start difference. First operand 1271 states and 1709 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:04:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:41,554 INFO L93 Difference]: Finished difference Result 1624 states and 2163 transitions. [2023-11-29 04:04:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:04:41,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2023-11-29 04:04:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:41,559 INFO L225 Difference]: With dead ends: 1624 [2023-11-29 04:04:41,559 INFO L226 Difference]: Without dead ends: 1622 [2023-11-29 04:04:41,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:04:41,560 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 303 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:41,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 838 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 04:04:41,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-11-29 04:04:41,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1567. [2023-11-29 04:04:41,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1340 states have (on average 1.3201492537313433) internal successors, (1769), 1385 states have internal predecessors, (1769), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:04:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2127 transitions. [2023-11-29 04:04:41,948 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2127 transitions. Word has length 98 [2023-11-29 04:04:41,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:41,948 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2127 transitions. [2023-11-29 04:04:41,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:04:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2127 transitions. [2023-11-29 04:04:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 04:04:41,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:41,949 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:41,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 04:04:42,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:42,149 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:04:42,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:42,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1231943908, now seen corresponding path program 1 times [2023-11-29 04:04:42,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:42,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198576221] [2023-11-29 04:04:42,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:42,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:42,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:04:42,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344481403] [2023-11-29 04:04:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:42,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:42,157 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:42,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 04:04:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:42,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 04:04:42,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:04:43,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:04:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198576221] [2023-11-29 04:04:46,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:04:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344481403] [2023-11-29 04:04:46,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344481403] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:04:46,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:04:46,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-11-29 04:04:46,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254095338] [2023-11-29 04:04:46,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:46,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 04:04:46,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 04:04:46,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:04:46,553 INFO L87 Difference]: Start difference. First operand 1567 states and 2127 transitions. Second operand has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 04:05:24,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:05:30,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:05:35,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:06:02,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:06:05,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:06:12,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:06:36,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:06:43,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:06:45,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:07:15,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:07:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:27,479 INFO L93 Difference]: Finished difference Result 2106 states and 2712 transitions. [2023-11-29 04:07:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 04:07:27,479 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) Word has length 99 [2023-11-29 04:07:27,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:27,485 INFO L225 Difference]: With dead ends: 2106 [2023-11-29 04:07:27,485 INFO L226 Difference]: Without dead ends: 2105 [2023-11-29 04:07:27,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1814 ImplicationChecksByTransitivity, 58.3s TimeCoverageRelationStatistics Valid=1041, Invalid=5931, Unknown=0, NotChecked=0, Total=6972 [2023-11-29 04:07:27,487 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1693 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 4757 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 5019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 4757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:27,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 904 Invalid, 5019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 4757 Invalid, 0 Unknown, 0 Unchecked, 104.1s Time] [2023-11-29 04:07:27,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2023-11-29 04:07:27,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 1605. [2023-11-29 04:07:27,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1378 states have (on average 1.3265602322206096) internal successors, (1828), 1423 states have internal predecessors, (1828), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:07:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2186 transitions. [2023-11-29 04:07:27,990 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2186 transitions. Word has length 99 [2023-11-29 04:07:27,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:27,991 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 2186 transitions. [2023-11-29 04:07:27,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 04:07:27,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2186 transitions. [2023-11-29 04:07:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:07:27,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:27,991 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:07:27,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 04:07:28,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:28,192 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:07:28,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash 868607295, now seen corresponding path program 1 times [2023-11-29 04:07:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:28,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558294573] [2023-11-29 04:07:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:28,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:28,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84252175] [2023-11-29 04:07:28,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:28,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:28,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:28,200 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:28,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 04:07:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:28,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:07:28,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:07:28,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:07:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:07:28,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:28,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558294573] [2023-11-29 04:07:28,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:28,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84252175] [2023-11-29 04:07:28,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84252175] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:07:28,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:07:28,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-29 04:07:28,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54340223] [2023-11-29 04:07:28,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:07:28,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:07:28,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:28,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:07:28,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:07:28,477 INFO L87 Difference]: Start difference. First operand 1605 states and 2186 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:07:30,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:30,052 INFO L93 Difference]: Finished difference Result 2335 states and 3124 transitions. [2023-11-29 04:07:30,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:07:30,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 100 [2023-11-29 04:07:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:30,063 INFO L225 Difference]: With dead ends: 2335 [2023-11-29 04:07:30,063 INFO L226 Difference]: Without dead ends: 2308 [2023-11-29 04:07:30,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 192 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:07:30,064 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 684 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:30,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 1121 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:07:30,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2023-11-29 04:07:30,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 1593. [2023-11-29 04:07:30,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1366 states have (on average 1.3199121522693997) internal successors, (1803), 1411 states have internal predecessors, (1803), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:07:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2161 transitions. [2023-11-29 04:07:30,549 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2161 transitions. Word has length 100 [2023-11-29 04:07:30,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:30,549 INFO L495 AbstractCegarLoop]: Abstraction has 1593 states and 2161 transitions. [2023-11-29 04:07:30,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:07:30,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2161 transitions. [2023-11-29 04:07:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:07:30,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:30,550 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:07:30,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 04:07:30,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2023-11-29 04:07:30,751 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:07:30,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:30,751 INFO L85 PathProgramCache]: Analyzing trace with hash 464444710, now seen corresponding path program 1 times [2023-11-29 04:07:30,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:30,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889141292] [2023-11-29 04:07:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:30,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:30,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513368593] [2023-11-29 04:07:30,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:30,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:30,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:30,759 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:30,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 04:07:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:30,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 04:07:30,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:07:32,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:07:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:07:34,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:34,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889141292] [2023-11-29 04:07:34,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:34,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513368593] [2023-11-29 04:07:34,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513368593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:07:34,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:07:34,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 04:07:34,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162106812] [2023-11-29 04:07:34,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:07:34,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-29 04:07:34,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:34,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-29 04:07:34,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2023-11-29 04:07:34,307 INFO L87 Difference]: Start difference. First operand 1593 states and 2161 transitions. Second operand has 27 states, 26 states have (on average 4.961538461538462) internal successors, (129), 27 states have internal predecessors, (129), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:07:44,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:08:00,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:08:40,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:08:49,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:09:03,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:09:03,577 INFO L93 Difference]: Finished difference Result 1836 states and 2387 transitions. [2023-11-29 04:09:03,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 04:09:03,578 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.961538461538462) internal successors, (129), 27 states have internal predecessors, (129), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 5 states have call successors, (12) Word has length 100 [2023-11-29 04:09:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:09:03,580 INFO L225 Difference]: With dead ends: 1836 [2023-11-29 04:09:03,580 INFO L226 Difference]: Without dead ends: 1821 [2023-11-29 04:09:03,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1639 ImplicationChecksByTransitivity, 40.7s TimeCoverageRelationStatistics Valid=1030, Invalid=5612, Unknown=0, NotChecked=0, Total=6642 [2023-11-29 04:09:03,581 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 1385 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 3493 mSolverCounterSat, 231 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 3726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 3493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:09:03,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 833 Invalid, 3726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 3493 Invalid, 2 Unknown, 0 Unchecked, 49.4s Time] [2023-11-29 04:09:03,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2023-11-29 04:09:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1580. [2023-11-29 04:09:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1353 states have (on average 1.3222468588322247) internal successors, (1789), 1398 states have internal predecessors, (1789), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:09:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2147 transitions. [2023-11-29 04:09:04,134 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2147 transitions. Word has length 100 [2023-11-29 04:09:04,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:09:04,134 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 2147 transitions. [2023-11-29 04:09:04,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.961538461538462) internal successors, (129), 27 states have internal predecessors, (129), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:09:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2147 transitions. [2023-11-29 04:09:04,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:09:04,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:09:04,135 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:09:04,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 04:09:04,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:04,335 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:09:04,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash -499307822, now seen corresponding path program 2 times [2023-11-29 04:09:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:04,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102435551] [2023-11-29 04:09:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:04,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:04,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:09:04,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674124118] [2023-11-29 04:09:04,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:09:04,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:04,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:09:04,344 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:09:04,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 04:09:04,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:09:04,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:09:04,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:09:04,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:09:04,985 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:09:04,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:09:05,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:09:05,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102435551] [2023-11-29 04:09:05,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:09:05,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674124118] [2023-11-29 04:09:05,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674124118] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:09:05,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:09:05,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 04:09:05,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879371197] [2023-11-29 04:09:05,150 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:09:05,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:09:05,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:09:05,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:09:05,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:09:05,151 INFO L87 Difference]: Start difference. First operand 1580 states and 2147 transitions. Second operand has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:09:08,409 INFO L93 Difference]: Finished difference Result 2108 states and 2811 transitions. [2023-11-29 04:09:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:09:08,410 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 103 [2023-11-29 04:09:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:09:08,412 INFO L225 Difference]: With dead ends: 2108 [2023-11-29 04:09:08,412 INFO L226 Difference]: Without dead ends: 2106 [2023-11-29 04:09:08,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:09:08,413 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 608 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:09:08,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1509 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 04:09:08,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2023-11-29 04:09:09,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1787. [2023-11-29 04:09:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1536 states have (on average 1.3151041666666667) internal successors, (2020), 1581 states have internal predecessors, (2020), 203 states have call successors, (203), 2 states have call predecessors, (203), 2 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2023-11-29 04:09:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2426 transitions. [2023-11-29 04:09:09,070 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2426 transitions. Word has length 103 [2023-11-29 04:09:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:09:09,070 INFO L495 AbstractCegarLoop]: Abstraction has 1787 states and 2426 transitions. [2023-11-29 04:09:09,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:09,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2426 transitions. [2023-11-29 04:09:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 04:09:09,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:09:09,071 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:09:09,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2023-11-29 04:09:09,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:09,272 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:09:09,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:09,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1701326781, now seen corresponding path program 2 times [2023-11-29 04:09:09,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:09,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998223382] [2023-11-29 04:09:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:09,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:09:09,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787979667] [2023-11-29 04:09:09,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:09:09,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:09,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:09:09,280 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:09:09,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 04:09:09,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:09:09,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:09:09,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:09:09,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:09:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:09:09,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:09:10,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:09:10,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998223382] [2023-11-29 04:09:10,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:09:10,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787979667] [2023-11-29 04:09:10,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787979667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:09:10,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:09:10,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 04:09:10,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419640219] [2023-11-29 04:09:10,207 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:09:10,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:09:10,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:09:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:09:10,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:09:10,208 INFO L87 Difference]: Start difference. First operand 1787 states and 2426 transitions. Second operand has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:13,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:09:13,534 INFO L93 Difference]: Finished difference Result 2106 states and 2809 transitions. [2023-11-29 04:09:13,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:09:13,535 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2023-11-29 04:09:13,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:09:13,537 INFO L225 Difference]: With dead ends: 2106 [2023-11-29 04:09:13,537 INFO L226 Difference]: Without dead ends: 2104 [2023-11-29 04:09:13,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:09:13,537 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 617 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:09:13,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1417 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 04:09:13,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2023-11-29 04:09:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1789. [2023-11-29 04:09:14,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1538 states have (on average 1.3146944083224967) internal successors, (2022), 1583 states have internal predecessors, (2022), 203 states have call successors, (203), 2 states have call predecessors, (203), 2 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2023-11-29 04:09:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2428 transitions. [2023-11-29 04:09:14,179 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2428 transitions. Word has length 104 [2023-11-29 04:09:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:09:14,179 INFO L495 AbstractCegarLoop]: Abstraction has 1789 states and 2428 transitions. [2023-11-29 04:09:14,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:14,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2428 transitions. [2023-11-29 04:09:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:09:14,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:09:14,180 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:09:14,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2023-11-29 04:09:14,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:14,380 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:09:14,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1201522740, now seen corresponding path program 1 times [2023-11-29 04:09:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:14,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616633866] [2023-11-29 04:09:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:14,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:09:14,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1257018563] [2023-11-29 04:09:14,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:14,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:14,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:09:14,389 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:09:14,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 04:09:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:09:14,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:09:14,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:09:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:09:15,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:09:15,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:09:15,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616633866] [2023-11-29 04:09:15,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:09:15,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257018563] [2023-11-29 04:09:15,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257018563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:09:15,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:09:15,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:09:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497153284] [2023-11-29 04:09:15,154 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:09:15,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:09:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:09:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:09:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:09:15,155 INFO L87 Difference]: Start difference. First operand 1789 states and 2428 transitions. Second operand has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:09:19,088 INFO L93 Difference]: Finished difference Result 2089 states and 2789 transitions. [2023-11-29 04:09:19,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:09:19,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 105 [2023-11-29 04:09:19,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:09:19,091 INFO L225 Difference]: With dead ends: 2089 [2023-11-29 04:09:19,091 INFO L226 Difference]: Without dead ends: 2087 [2023-11-29 04:09:19,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2023-11-29 04:09:19,092 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 629 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:09:19,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1533 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:09:19,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2023-11-29 04:09:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 1994. [2023-11-29 04:09:19,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1717 states have (on average 1.341875364006989) internal successors, (2304), 1762 states have internal predecessors, (2304), 229 states have call successors, (229), 2 states have call predecessors, (229), 2 states have return successors, (229), 229 states have call predecessors, (229), 229 states have call successors, (229) [2023-11-29 04:09:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2762 transitions. [2023-11-29 04:09:19,794 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2762 transitions. Word has length 105 [2023-11-29 04:09:19,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:09:19,794 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 2762 transitions. [2023-11-29 04:09:19,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2762 transitions. [2023-11-29 04:09:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 04:09:19,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:09:19,795 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:09:19,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 04:09:19,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:19,996 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:09:19,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash -28222325, now seen corresponding path program 1 times [2023-11-29 04:09:19,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:19,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591185187] [2023-11-29 04:09:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:19,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:20,003 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:09:20,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13692929] [2023-11-29 04:09:20,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:20,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:20,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:09:20,005 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:09:20,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 04:09:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:09:20,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:09:20,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:09:22,200 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:09:22,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:09:22,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:09:22,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591185187] [2023-11-29 04:09:22,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:09:22,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13692929] [2023-11-29 04:09:22,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13692929] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:09:22,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:09:22,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:09:22,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495397420] [2023-11-29 04:09:22,300 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:09:22,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:09:22,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:09:22,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:09:22,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:09:22,301 INFO L87 Difference]: Start difference. First operand 1994 states and 2762 transitions. Second operand has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:09:26,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:09:26,153 INFO L93 Difference]: Finished difference Result 2054 states and 2796 transitions. [2023-11-29 04:09:26,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:09:26,153 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 106 [2023-11-29 04:09:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:09:26,155 INFO L225 Difference]: With dead ends: 2054 [2023-11-29 04:09:26,155 INFO L226 Difference]: Without dead ends: 2053 [2023-11-29 04:09:26,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:09:26,156 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 387 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:09:26,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 817 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 04:09:26,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2023-11-29 04:09:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 1994. [2023-11-29 04:09:26,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1717 states have (on average 1.336051252184042) internal successors, (2294), 1762 states have internal predecessors, (2294), 229 states have call successors, (229), 2 states have call predecessors, (229), 2 states have return successors, (229), 229 states have call predecessors, (229), 229 states have call successors, (229) [2023-11-29 04:09:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2752 transitions. [2023-11-29 04:09:26,837 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2752 transitions. Word has length 106 [2023-11-29 04:09:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:09:26,837 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 2752 transitions. [2023-11-29 04:09:26,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:09:26,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2752 transitions. [2023-11-29 04:09:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 04:09:26,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:09:26,838 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:09:26,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 04:09:27,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:27,039 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:09:27,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1407500641, now seen corresponding path program 1 times [2023-11-29 04:09:27,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:27,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595628004] [2023-11-29 04:09:27,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:27,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:27,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:09:27,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373161385] [2023-11-29 04:09:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:27,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:27,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:09:27,046 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:09:27,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 04:09:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:09:27,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:09:27,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:09:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:09:27,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:09:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:09:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595628004] [2023-11-29 04:09:27,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:09:27,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373161385] [2023-11-29 04:09:27,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373161385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:09:27,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:09:27,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:09:27,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936150843] [2023-11-29 04:09:27,866 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:09:27,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:09:27,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:09:27,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:09:27,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:09:27,867 INFO L87 Difference]: Start difference. First operand 1994 states and 2752 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:09:30,702 INFO L93 Difference]: Finished difference Result 2087 states and 2771 transitions. [2023-11-29 04:09:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:09:30,703 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 106 [2023-11-29 04:09:30,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:09:30,705 INFO L225 Difference]: With dead ends: 2087 [2023-11-29 04:09:30,705 INFO L226 Difference]: Without dead ends: 2085 [2023-11-29 04:09:30,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:09:30,705 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 643 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:09:30,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1404 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:09:30,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2023-11-29 04:09:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1994. [2023-11-29 04:09:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1717 states have (on average 1.3348864298194525) internal successors, (2292), 1762 states have internal predecessors, (2292), 229 states have call successors, (229), 2 states have call predecessors, (229), 2 states have return successors, (229), 229 states have call predecessors, (229), 229 states have call successors, (229) [2023-11-29 04:09:31,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2750 transitions. [2023-11-29 04:09:31,431 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2750 transitions. Word has length 106 [2023-11-29 04:09:31,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:09:31,431 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 2750 transitions. [2023-11-29 04:09:31,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:09:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2750 transitions. [2023-11-29 04:09:31,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 04:09:31,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:09:31,432 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:09:31,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2023-11-29 04:09:31,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 04:09:31,633 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:09:31,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash -682846826, now seen corresponding path program 1 times [2023-11-29 04:09:31,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:31,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305868291] [2023-11-29 04:09:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:31,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:31,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:09:31,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382148263] [2023-11-29 04:09:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:31,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:09:31,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:09:31,641 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:09:31,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 04:09:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:09:31,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:09:31,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:09:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:09:34,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:09:35,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:09:35,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305868291] [2023-11-29 04:09:35,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:09:35,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382148263] [2023-11-29 04:09:35,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382148263] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:09:35,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:09:35,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:09:35,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979908126] [2023-11-29 04:09:35,660 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:09:35,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:09:35,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:09:35,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:09:35,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:09:35,661 INFO L87 Difference]: Start difference. First operand 1994 states and 2750 transitions. Second operand has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:10:03,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:10:12,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:12,196 INFO L93 Difference]: Finished difference Result 2485 states and 3340 transitions. [2023-11-29 04:10:12,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:10:12,197 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 107 [2023-11-29 04:10:12,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:12,199 INFO L225 Difference]: With dead ends: 2485 [2023-11-29 04:10:12,200 INFO L226 Difference]: Without dead ends: 2484 [2023-11-29 04:10:12,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=133, Invalid=859, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:10:12,200 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 631 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:12,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1482 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2363 Invalid, 1 Unknown, 0 Unchecked, 30.7s Time] [2023-11-29 04:10:12,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2023-11-29 04:10:12,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 1994. [2023-11-29 04:10:12,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1717 states have (on average 1.3308095515433895) internal successors, (2285), 1762 states have internal predecessors, (2285), 229 states have call successors, (229), 2 states have call predecessors, (229), 2 states have return successors, (229), 229 states have call predecessors, (229), 229 states have call successors, (229) [2023-11-29 04:10:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2743 transitions. [2023-11-29 04:10:12,923 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2743 transitions. Word has length 107 [2023-11-29 04:10:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:12,923 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 2743 transitions. [2023-11-29 04:10:12,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 14 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:10:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2743 transitions. [2023-11-29 04:10:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 04:10:12,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:12,924 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:12,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2023-11-29 04:10:13,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 04:10:13,125 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:13,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash 306584961, now seen corresponding path program 1 times [2023-11-29 04:10:13,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:13,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887989202] [2023-11-29 04:10:13,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:13,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:13,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:13,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [833770191] [2023-11-29 04:10:13,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:13,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:13,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:13,134 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:13,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 04:10:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:13,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:10:13,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:15,611 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 10 proven. 42 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 04:10:15,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:23,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:23,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887989202] [2023-11-29 04:10:23,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:23,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833770191] [2023-11-29 04:10:23,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833770191] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:23,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:10:23,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:10:23,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906534819] [2023-11-29 04:10:23,805 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:23,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:10:23,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:23,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:10:23,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=227, Unknown=2, NotChecked=0, Total=272 [2023-11-29 04:10:23,807 INFO L87 Difference]: Start difference. First operand 1994 states and 2743 transitions. Second operand has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:10:26,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:26,420 INFO L93 Difference]: Finished difference Result 2050 states and 2762 transitions. [2023-11-29 04:10:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:10:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 108 [2023-11-29 04:10:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:26,424 INFO L225 Difference]: With dead ends: 2050 [2023-11-29 04:10:26,424 INFO L226 Difference]: Without dead ends: 2048 [2023-11-29 04:10:26,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=151, Invalid=603, Unknown=2, NotChecked=0, Total=756 [2023-11-29 04:10:26,424 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 347 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:26,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 902 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:10:26,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2023-11-29 04:10:27,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1993. [2023-11-29 04:10:27,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1717 states have (on average 1.3104251601630752) internal successors, (2250), 1761 states have internal predecessors, (2250), 229 states have call successors, (229), 2 states have call predecessors, (229), 2 states have return successors, (229), 229 states have call predecessors, (229), 229 states have call successors, (229) [2023-11-29 04:10:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2708 transitions. [2023-11-29 04:10:27,166 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2708 transitions. Word has length 108 [2023-11-29 04:10:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:27,166 INFO L495 AbstractCegarLoop]: Abstraction has 1993 states and 2708 transitions. [2023-11-29 04:10:27,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:10:27,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2708 transitions. [2023-11-29 04:10:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 04:10:27,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:27,168 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:27,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 04:10:27,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 04:10:27,368 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:27,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1670291419, now seen corresponding path program 1 times [2023-11-29 04:10:27,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:27,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734866693] [2023-11-29 04:10:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:27,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:27,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:27,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097767018] [2023-11-29 04:10:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:27,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:27,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:27,378 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:27,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 04:10:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:27,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:10:27,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:10:27,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:10:27,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:27,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734866693] [2023-11-29 04:10:27,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:27,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097767018] [2023-11-29 04:10:27,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097767018] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:10:27,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:10:27,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:10:27,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455022458] [2023-11-29 04:10:27,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:27,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:10:27,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:27,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:10:27,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:10:27,659 INFO L87 Difference]: Start difference. First operand 1993 states and 2708 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:10:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:29,207 INFO L93 Difference]: Finished difference Result 2218 states and 2982 transitions. [2023-11-29 04:10:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:10:29,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 113 [2023-11-29 04:10:29,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:29,210 INFO L225 Difference]: With dead ends: 2218 [2023-11-29 04:10:29,210 INFO L226 Difference]: Without dead ends: 2217 [2023-11-29 04:10:29,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:10:29,211 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 764 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:29,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 423 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:10:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2023-11-29 04:10:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2179. [2023-11-29 04:10:30,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 1876 states have (on average 1.3054371002132197) internal successors, (2449), 1920 states have internal predecessors, (2449), 256 states have call successors, (256), 2 states have call predecessors, (256), 2 states have return successors, (256), 256 states have call predecessors, (256), 256 states have call successors, (256) [2023-11-29 04:10:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 2961 transitions. [2023-11-29 04:10:30,021 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 2961 transitions. Word has length 113 [2023-11-29 04:10:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:30,021 INFO L495 AbstractCegarLoop]: Abstraction has 2179 states and 2961 transitions. [2023-11-29 04:10:30,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:10:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 2961 transitions. [2023-11-29 04:10:30,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:10:30,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:30,022 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:30,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 04:10:30,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:30,223 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:30,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:30,223 INFO L85 PathProgramCache]: Analyzing trace with hash 593838415, now seen corresponding path program 1 times [2023-11-29 04:10:30,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:30,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750096110] [2023-11-29 04:10:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:30,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:30,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260724345] [2023-11-29 04:10:30,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:30,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:30,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:30,231 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:30,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 04:10:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:30,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:10:30,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 04:10:30,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:30,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:30,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750096110] [2023-11-29 04:10:30,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:30,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260724345] [2023-11-29 04:10:30,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260724345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:30,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:30,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:10:30,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747291172] [2023-11-29 04:10:30,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:30,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:10:30,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:30,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:10:30,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:10:30,336 INFO L87 Difference]: Start difference. First operand 2179 states and 2961 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:10:30,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:30,965 INFO L93 Difference]: Finished difference Result 3227 states and 4398 transitions. [2023-11-29 04:10:30,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:10:30,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 112 [2023-11-29 04:10:30,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:30,968 INFO L225 Difference]: With dead ends: 3227 [2023-11-29 04:10:30,968 INFO L226 Difference]: Without dead ends: 1449 [2023-11-29 04:10:30,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:10:30,972 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 25 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:30,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 325 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:30,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2023-11-29 04:10:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1413. [2023-11-29 04:10:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1208 states have (on average 1.3112582781456954) internal successors, (1584), 1252 states have internal predecessors, (1584), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2023-11-29 04:10:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1900 transitions. [2023-11-29 04:10:31,476 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1900 transitions. Word has length 112 [2023-11-29 04:10:31,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:31,476 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1900 transitions. [2023-11-29 04:10:31,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:10:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1900 transitions. [2023-11-29 04:10:31,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 04:10:31,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:31,477 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:31,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 04:10:31,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:31,678 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:31,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash -239426318, now seen corresponding path program 1 times [2023-11-29 04:10:31,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:31,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971921141] [2023-11-29 04:10:31,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:31,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:31,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:31,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183026602] [2023-11-29 04:10:31,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:31,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:31,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:31,686 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:31,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 04:10:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:31,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:10:31,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:10:31,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:10:31,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:31,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971921141] [2023-11-29 04:10:31,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:31,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183026602] [2023-11-29 04:10:31,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183026602] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:10:31,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:10:31,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:10:31,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403284843] [2023-11-29 04:10:31,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:31,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:10:31,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:31,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:10:31,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:10:31,894 INFO L87 Difference]: Start difference. First operand 1413 states and 1900 transitions. Second operand has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 10 states have internal predecessors, (113), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:10:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:33,415 INFO L93 Difference]: Finished difference Result 1453 states and 1916 transitions. [2023-11-29 04:10:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:10:33,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 10 states have internal predecessors, (113), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 114 [2023-11-29 04:10:33,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:33,418 INFO L225 Difference]: With dead ends: 1453 [2023-11-29 04:10:33,418 INFO L226 Difference]: Without dead ends: 1451 [2023-11-29 04:10:33,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:10:33,419 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 403 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:33,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 501 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:10:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2023-11-29 04:10:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1302. [2023-11-29 04:10:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1112 states have (on average 1.285071942446043) internal successors, (1429), 1155 states have internal predecessors, (1429), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2023-11-29 04:10:33,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1717 transitions. [2023-11-29 04:10:33,920 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1717 transitions. Word has length 114 [2023-11-29 04:10:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:33,920 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 1717 transitions. [2023-11-29 04:10:33,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 10 states have internal predecessors, (113), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:10:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1717 transitions. [2023-11-29 04:10:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 04:10:33,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:33,922 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:33,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 04:10:34,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:34,122 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:34,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:34,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1839546305, now seen corresponding path program 1 times [2023-11-29 04:10:34,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:34,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963312322] [2023-11-29 04:10:34,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:34,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:34,131 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656467566] [2023-11-29 04:10:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:34,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:34,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:34,132 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:34,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 04:10:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:34,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:34,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:10:34,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:34,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:34,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963312322] [2023-11-29 04:10:34,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:34,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656467566] [2023-11-29 04:10:34,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656467566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:34,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:34,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:10:34,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420118141] [2023-11-29 04:10:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:34,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:10:34,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:34,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:10:34,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:10:34,290 INFO L87 Difference]: Start difference. First operand 1302 states and 1717 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:10:34,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:34,890 INFO L93 Difference]: Finished difference Result 1313 states and 1717 transitions. [2023-11-29 04:10:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:10:34,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-11-29 04:10:34,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:34,893 INFO L225 Difference]: With dead ends: 1313 [2023-11-29 04:10:34,893 INFO L226 Difference]: Without dead ends: 1312 [2023-11-29 04:10:34,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 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 04:10:34,893 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 20 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:34,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 398 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:34,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2023-11-29 04:10:35,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1301. [2023-11-29 04:10:35,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1112 states have (on average 1.276978417266187) internal successors, (1420), 1154 states have internal predecessors, (1420), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2023-11-29 04:10:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1708 transitions. [2023-11-29 04:10:35,383 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1708 transitions. Word has length 116 [2023-11-29 04:10:35,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:35,384 INFO L495 AbstractCegarLoop]: Abstraction has 1301 states and 1708 transitions. [2023-11-29 04:10:35,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:10:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1708 transitions. [2023-11-29 04:10:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 04:10:35,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:35,385 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:35,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 04:10:35,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:35,585 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:35,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:35,586 INFO L85 PathProgramCache]: Analyzing trace with hash 325727716, now seen corresponding path program 1 times [2023-11-29 04:10:35,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:35,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148352755] [2023-11-29 04:10:35,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:35,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:35,594 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:35,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854757179] [2023-11-29 04:10:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:35,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:35,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:35,595 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:35,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 04:10:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:35,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 04:10:35,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:10:36,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:37,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:37,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148352755] [2023-11-29 04:10:37,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:37,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854757179] [2023-11-29 04:10:37,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854757179] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:37,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:10:37,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:10:37,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63844213] [2023-11-29 04:10:37,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:37,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:10:37,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:37,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:10:37,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:10:37,005 INFO L87 Difference]: Start difference. First operand 1301 states and 1708 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:10:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:40,626 INFO L93 Difference]: Finished difference Result 1376 states and 1742 transitions. [2023-11-29 04:10:40,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:10:40,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 114 [2023-11-29 04:10:40,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:40,629 INFO L225 Difference]: With dead ends: 1376 [2023-11-29 04:10:40,629 INFO L226 Difference]: Without dead ends: 1375 [2023-11-29 04:10:40,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=145, Invalid=977, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 04:10:40,630 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 552 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:40,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1018 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 04:10:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2023-11-29 04:10:41,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1301. [2023-11-29 04:10:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1112 states have (on average 1.2733812949640289) internal successors, (1416), 1154 states have internal predecessors, (1416), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2023-11-29 04:10:41,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1704 transitions. [2023-11-29 04:10:41,176 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1704 transitions. Word has length 114 [2023-11-29 04:10:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:41,176 INFO L495 AbstractCegarLoop]: Abstraction has 1301 states and 1704 transitions. [2023-11-29 04:10:41,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:10:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1704 transitions. [2023-11-29 04:10:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 04:10:41,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:41,177 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:41,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 04:10:41,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2023-11-29 04:10:41,378 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:41,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1953765068, now seen corresponding path program 1 times [2023-11-29 04:10:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:41,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144025660] [2023-11-29 04:10:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:41,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:41,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:41,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069880060] [2023-11-29 04:10:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:41,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:41,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:41,387 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:41,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 04:10:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:41,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:10:41,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:41,597 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-29 04:10:41,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:41,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:41,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144025660] [2023-11-29 04:10:41,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:41,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069880060] [2023-11-29 04:10:41,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069880060] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:41,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:10:41,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:10:41,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048168031] [2023-11-29 04:10:41,625 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:41,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:10:41,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:41,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:10:41,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:10:41,626 INFO L87 Difference]: Start difference. First operand 1301 states and 1704 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 04:10:42,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:42,563 INFO L93 Difference]: Finished difference Result 1446 states and 1884 transitions. [2023-11-29 04:10:42,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:10:42,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 115 [2023-11-29 04:10:42,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:42,566 INFO L225 Difference]: With dead ends: 1446 [2023-11-29 04:10:42,566 INFO L226 Difference]: Without dead ends: 1444 [2023-11-29 04:10:42,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:10:42,566 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 350 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:42,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 458 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:10:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2023-11-29 04:10:43,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1413. [2023-11-29 04:10:43,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1210 states have (on average 1.2727272727272727) internal successors, (1540), 1252 states have internal predecessors, (1540), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2023-11-29 04:10:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1856 transitions. [2023-11-29 04:10:43,142 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1856 transitions. Word has length 115 [2023-11-29 04:10:43,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:43,142 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1856 transitions. [2023-11-29 04:10:43,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 04:10:43,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1856 transitions. [2023-11-29 04:10:43,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 04:10:43,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:43,143 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:43,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 04:10:43,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2023-11-29 04:10:43,343 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:43,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:43,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1191362316, now seen corresponding path program 1 times [2023-11-29 04:10:43,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:43,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914914885] [2023-11-29 04:10:43,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:43,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:43,349 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:43,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151453346] [2023-11-29 04:10:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:43,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:43,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:43,350 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:43,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 04:10:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:43,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:43,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:10:43,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:43,532 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:10:43,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:43,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914914885] [2023-11-29 04:10:43,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:43,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151453346] [2023-11-29 04:10:43,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151453346] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:10:43,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:10:43,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:10:43,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552810931] [2023-11-29 04:10:43,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:43,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:10:43,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:43,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:10:43,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:10:43,534 INFO L87 Difference]: Start difference. First operand 1413 states and 1856 transitions. Second operand has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:10:44,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:44,600 INFO L93 Difference]: Finished difference Result 2191 states and 2912 transitions. [2023-11-29 04:10:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:10:44,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 117 [2023-11-29 04:10:44,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:44,604 INFO L225 Difference]: With dead ends: 2191 [2023-11-29 04:10:44,604 INFO L226 Difference]: Without dead ends: 2190 [2023-11-29 04:10:44,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 228 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 04:10:44,604 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 112 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:44,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 403 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:10:44,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2023-11-29 04:10:45,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2065. [2023-11-29 04:10:45,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 1776 states have (on average 1.2939189189189189) internal successors, (2298), 1818 states have internal predecessors, (2298), 244 states have call successors, (244), 2 states have call predecessors, (244), 2 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-29 04:10:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2786 transitions. [2023-11-29 04:10:45,543 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2786 transitions. Word has length 117 [2023-11-29 04:10:45,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:45,543 INFO L495 AbstractCegarLoop]: Abstraction has 2065 states and 2786 transitions. [2023-11-29 04:10:45,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:10:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2786 transitions. [2023-11-29 04:10:45,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 04:10:45,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:45,544 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:45,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2023-11-29 04:10:45,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2023-11-29 04:10:45,744 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:45,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:45,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1507624696, now seen corresponding path program 1 times [2023-11-29 04:10:45,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:45,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801013856] [2023-11-29 04:10:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:45,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:45,752 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002964277] [2023-11-29 04:10:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:45,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:45,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:45,753 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:45,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 04:10:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:45,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:10:45,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:10:47,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:48,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:48,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801013856] [2023-11-29 04:10:48,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:48,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002964277] [2023-11-29 04:10:48,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002964277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:48,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:10:48,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:10:48,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607611909] [2023-11-29 04:10:48,836 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:48,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:10:48,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:10:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2023-11-29 04:10:48,837 INFO L87 Difference]: Start difference. First operand 2065 states and 2786 transitions. Second operand has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:10:51,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:51,589 INFO L93 Difference]: Finished difference Result 2139 states and 2820 transitions. [2023-11-29 04:10:51,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:10:51,590 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 115 [2023-11-29 04:10:51,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:51,592 INFO L225 Difference]: With dead ends: 2139 [2023-11-29 04:10:51,593 INFO L226 Difference]: Without dead ends: 2138 [2023-11-29 04:10:51,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=130, Invalid=681, Unknown=1, NotChecked=0, Total=812 [2023-11-29 04:10:51,593 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 499 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:51,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1163 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:10:51,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2023-11-29 04:10:52,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2065. [2023-11-29 04:10:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 1776 states have (on average 1.2882882882882882) internal successors, (2288), 1818 states have internal predecessors, (2288), 244 states have call successors, (244), 2 states have call predecessors, (244), 2 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-29 04:10:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2776 transitions. [2023-11-29 04:10:52,479 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2776 transitions. Word has length 115 [2023-11-29 04:10:52,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:52,479 INFO L495 AbstractCegarLoop]: Abstraction has 2065 states and 2776 transitions. [2023-11-29 04:10:52,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:10:52,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2776 transitions. [2023-11-29 04:10:52,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 04:10:52,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:52,481 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:52,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 04:10:52,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-11-29 04:10:52,681 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:10:52,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:52,682 INFO L85 PathProgramCache]: Analyzing trace with hash -508274586, now seen corresponding path program 1 times [2023-11-29 04:10:52,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:52,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272887099] [2023-11-29 04:10:52,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:52,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:52,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857106278] [2023-11-29 04:10:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:52,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:52,691 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:52,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 04:10:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:52,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:10:52,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:10:53,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:55,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272887099] [2023-11-29 04:10:55,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857106278] [2023-11-29 04:10:55,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857106278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:55,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:10:55,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:10:55,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660300589] [2023-11-29 04:10:55,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:55,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:10:55,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:55,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:10:55,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=386, Unknown=2, NotChecked=0, Total=462 [2023-11-29 04:10:55,999 INFO L87 Difference]: Start difference. First operand 2065 states and 2776 transitions. Second operand has 17 states, 16 states have (on average 5.0) internal successors, (80), 16 states have internal predecessors, (80), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:10:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:59,686 INFO L93 Difference]: Finished difference Result 2153 states and 2829 transitions. [2023-11-29 04:10:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:10:59,687 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 16 states have internal predecessors, (80), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 116 [2023-11-29 04:10:59,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:59,689 INFO L225 Difference]: With dead ends: 2153 [2023-11-29 04:10:59,689 INFO L226 Difference]: Without dead ends: 2152 [2023-11-29 04:10:59,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=633, Unknown=2, NotChecked=0, Total=756 [2023-11-29 04:10:59,690 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 480 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:59,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1138 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 04:10:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2023-11-29 04:11:00,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2065. [2023-11-29 04:11:00,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 1776 states have (on average 1.2877252252252251) internal successors, (2287), 1818 states have internal predecessors, (2287), 244 states have call successors, (244), 2 states have call predecessors, (244), 2 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-29 04:11:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2775 transitions. [2023-11-29 04:11:00,640 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2775 transitions. Word has length 116 [2023-11-29 04:11:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:00,640 INFO L495 AbstractCegarLoop]: Abstraction has 2065 states and 2775 transitions. [2023-11-29 04:11:00,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 16 states have internal predecessors, (80), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:11:00,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2775 transitions. [2023-11-29 04:11:00,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 04:11:00,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:00,642 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:11:00,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 04:11:00,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:00,842 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:00,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1858586612, now seen corresponding path program 1 times [2023-11-29 04:11:00,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:00,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689929058] [2023-11-29 04:11:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:00,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:00,849 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:00,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268669343] [2023-11-29 04:11:00,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:00,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:00,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:00,850 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:00,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 04:11:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:00,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:11:00,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:11:01,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:11:01,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:01,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689929058] [2023-11-29 04:11:01,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:01,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268669343] [2023-11-29 04:11:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268669343] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:11:01,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:11:01,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:11:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996858962] [2023-11-29 04:11:01,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:01,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:11:01,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:11:01,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:11:01,233 INFO L87 Difference]: Start difference. First operand 2065 states and 2775 transitions. Second operand has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:11:03,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:03,585 INFO L93 Difference]: Finished difference Result 3214 states and 4265 transitions. [2023-11-29 04:11:03,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:11:03,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 119 [2023-11-29 04:11:03,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:03,590 INFO L225 Difference]: With dead ends: 3214 [2023-11-29 04:11:03,590 INFO L226 Difference]: Without dead ends: 3213 [2023-11-29 04:11:03,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:11:03,591 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 370 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:03,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 523 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:11:03,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3213 states. [2023-11-29 04:11:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3213 to 2477. [2023-11-29 04:11:04,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2140 states have (on average 1.2827102803738317) internal successors, (2745), 2182 states have internal predecessors, (2745), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 04:11:04,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3329 transitions. [2023-11-29 04:11:04,681 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3329 transitions. Word has length 119 [2023-11-29 04:11:04,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:04,681 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3329 transitions. [2023-11-29 04:11:04,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:11:04,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3329 transitions. [2023-11-29 04:11:04,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 04:11:04,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:04,682 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:04,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 04:11:04,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:04,883 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:04,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:04,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1423357114, now seen corresponding path program 1 times [2023-11-29 04:11:04,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:04,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019484921] [2023-11-29 04:11:04,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:04,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:04,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:04,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005964314] [2023-11-29 04:11:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:04,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:04,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:04,892 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:04,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 04:11:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:04,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:11:04,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:11:06,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:07,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:07,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019484921] [2023-11-29 04:11:07,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:07,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005964314] [2023-11-29 04:11:07,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005964314] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:11:07,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:11:07,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:11:07,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718159844] [2023-11-29 04:11:07,055 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:07,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:11:07,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:07,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:11:07,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:11:07,056 INFO L87 Difference]: Start difference. First operand 2477 states and 3329 transitions. Second operand has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:11:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:10,144 INFO L93 Difference]: Finished difference Result 2567 states and 3385 transitions. [2023-11-29 04:11:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:11:10,145 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 117 [2023-11-29 04:11:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:10,148 INFO L225 Difference]: With dead ends: 2567 [2023-11-29 04:11:10,148 INFO L226 Difference]: Without dead ends: 2566 [2023-11-29 04:11:10,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:11:10,148 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 466 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:10,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1217 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:11:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2023-11-29 04:11:11,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2477. [2023-11-29 04:11:11,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2140 states have (on average 1.2771028037383179) internal successors, (2733), 2182 states have internal predecessors, (2733), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 04:11:11,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3317 transitions. [2023-11-29 04:11:11,196 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3317 transitions. Word has length 117 [2023-11-29 04:11:11,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:11,197 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3317 transitions. [2023-11-29 04:11:11,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:11:11,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3317 transitions. [2023-11-29 04:11:11,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 04:11:11,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:11,198 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:11,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 04:11:11,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:11,399 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:11,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1174397672, now seen corresponding path program 1 times [2023-11-29 04:11:11,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:11,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880273233] [2023-11-29 04:11:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:11,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:11,406 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:11,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700662714] [2023-11-29 04:11:11,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:11,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:11,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:11,408 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:11,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 04:11:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:11,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 04:11:11,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:11:12,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:12,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:12,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880273233] [2023-11-29 04:11:12,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:12,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700662714] [2023-11-29 04:11:12,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700662714] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:11:12,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:11:12,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:11:12,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229012948] [2023-11-29 04:11:12,436 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:12,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:11:12,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:12,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:11:12,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:11:12,437 INFO L87 Difference]: Start difference. First operand 2477 states and 3317 transitions. Second operand has 17 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:11:15,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:15,469 INFO L93 Difference]: Finished difference Result 2566 states and 3373 transitions. [2023-11-29 04:11:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:11:15,470 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 118 [2023-11-29 04:11:15,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:15,472 INFO L225 Difference]: With dead ends: 2566 [2023-11-29 04:11:15,473 INFO L226 Difference]: Without dead ends: 2565 [2023-11-29 04:11:15,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:11:15,473 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 483 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:15,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1301 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:11:15,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2023-11-29 04:11:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2477. [2023-11-29 04:11:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2140 states have (on average 1.2714953271028038) internal successors, (2721), 2182 states have internal predecessors, (2721), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 04:11:16,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3305 transitions. [2023-11-29 04:11:16,541 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3305 transitions. Word has length 118 [2023-11-29 04:11:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:16,541 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3305 transitions. [2023-11-29 04:11:16,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:11:16,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3305 transitions. [2023-11-29 04:11:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 04:11:16,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:16,542 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:11:16,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 04:11:16,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:16,743 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:16,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:16,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2046589564, now seen corresponding path program 2 times [2023-11-29 04:11:16,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:16,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859424139] [2023-11-29 04:11:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:16,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:16,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:16,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977968460] [2023-11-29 04:11:16,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:11:16,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:16,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:16,752 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:16,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 04:11:16,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:11:16,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:11:16,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:11:16,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:18,399 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 04:11:18,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:18,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:18,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859424139] [2023-11-29 04:11:18,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:18,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977968460] [2023-11-29 04:11:18,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977968460] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:11:18,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:11:18,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:11:18,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815197063] [2023-11-29 04:11:18,601 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:18,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:11:18,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:18,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:11:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:11:18,602 INFO L87 Difference]: Start difference. First operand 2477 states and 3305 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:11:21,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:21,919 INFO L93 Difference]: Finished difference Result 2551 states and 3343 transitions. [2023-11-29 04:11:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:11:21,920 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 119 [2023-11-29 04:11:21,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:21,923 INFO L225 Difference]: With dead ends: 2551 [2023-11-29 04:11:21,923 INFO L226 Difference]: Without dead ends: 2550 [2023-11-29 04:11:21,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:11:21,924 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 346 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:21,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1228 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:11:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2023-11-29 04:11:23,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2477. [2023-11-29 04:11:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2140 states have (on average 1.2710280373831775) internal successors, (2720), 2182 states have internal predecessors, (2720), 292 states have call successors, (292), 2 states have call predecessors, (292), 2 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-29 04:11:23,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3304 transitions. [2023-11-29 04:11:23,013 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3304 transitions. Word has length 119 [2023-11-29 04:11:23,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:23,013 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3304 transitions. [2023-11-29 04:11:23,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:11:23,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3304 transitions. [2023-11-29 04:11:23,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 04:11:23,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:23,015 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:23,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 04:11:23,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:23,215 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:23,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1505399397, now seen corresponding path program 1 times [2023-11-29 04:11:23,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:23,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289556382] [2023-11-29 04:11:23,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:23,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:23,228 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:23,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119712697] [2023-11-29 04:11:23,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:23,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:23,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:23,231 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:23,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 04:11:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:23,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:11:23,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-29 04:11:23,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-29 04:11:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:23,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289556382] [2023-11-29 04:11:23,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:23,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119712697] [2023-11-29 04:11:23,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119712697] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:11:23,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:11:23,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-11-29 04:11:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877123425] [2023-11-29 04:11:23,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:23,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:11:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:23,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:11:23,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:11:23,696 INFO L87 Difference]: Start difference. First operand 2477 states and 3304 transitions. Second operand has 11 states, 10 states have (on average 13.2) internal successors, (132), 11 states have internal predecessors, (132), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 04:11:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:27,714 INFO L93 Difference]: Finished difference Result 3396 states and 4504 transitions. [2023-11-29 04:11:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 04:11:27,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.2) internal successors, (132), 11 states have internal predecessors, (132), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 121 [2023-11-29 04:11:27,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:27,718 INFO L225 Difference]: With dead ends: 3396 [2023-11-29 04:11:27,718 INFO L226 Difference]: Without dead ends: 3395 [2023-11-29 04:11:27,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=380, Invalid=1102, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 04:11:27,719 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 731 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:27,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1146 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:11:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2023-11-29 04:11:29,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3262. [2023-11-29 04:11:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2829 states have (on average 1.290562036055143) internal successors, (3651), 2871 states have internal predecessors, (3651), 388 states have call successors, (388), 2 states have call predecessors, (388), 2 states have return successors, (388), 388 states have call predecessors, (388), 388 states have call successors, (388) [2023-11-29 04:11:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4427 transitions. [2023-11-29 04:11:29,258 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4427 transitions. Word has length 121 [2023-11-29 04:11:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:29,259 INFO L495 AbstractCegarLoop]: Abstraction has 3262 states and 4427 transitions. [2023-11-29 04:11:29,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.2) internal successors, (132), 11 states have internal predecessors, (132), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 04:11:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4427 transitions. [2023-11-29 04:11:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 04:11:29,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:29,260 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:11:29,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 04:11:29,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:29,460 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:29,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:29,461 INFO L85 PathProgramCache]: Analyzing trace with hash -412794397, now seen corresponding path program 1 times [2023-11-29 04:11:29,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:29,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071614608] [2023-11-29 04:11:29,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:29,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:29,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:29,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185579858] [2023-11-29 04:11:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:29,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:29,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:29,468 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:29,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 04:11:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:29,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:11:29,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:11:29,616 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:11:29,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071614608] [2023-11-29 04:11:29,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185579858] [2023-11-29 04:11:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185579858] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:11:29,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:11:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:11:29,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581976605] [2023-11-29 04:11:29,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:29,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:11:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:11:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:11:29,729 INFO L87 Difference]: Start difference. First operand 3262 states and 4427 transitions. Second operand has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:11:32,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:32,282 INFO L93 Difference]: Finished difference Result 3434 states and 4550 transitions. [2023-11-29 04:11:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:11:32,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 127 [2023-11-29 04:11:32,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:32,287 INFO L225 Difference]: With dead ends: 3434 [2023-11-29 04:11:32,288 INFO L226 Difference]: Without dead ends: 3433 [2023-11-29 04:11:32,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=559, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:11:32,289 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 1205 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:32,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 373 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:11:32,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2023-11-29 04:11:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3262. [2023-11-29 04:11:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2829 states have (on average 1.2732414280664546) internal successors, (3602), 2871 states have internal predecessors, (3602), 388 states have call successors, (388), 2 states have call predecessors, (388), 2 states have return successors, (388), 388 states have call predecessors, (388), 388 states have call successors, (388) [2023-11-29 04:11:33,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4378 transitions. [2023-11-29 04:11:33,881 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4378 transitions. Word has length 127 [2023-11-29 04:11:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:33,881 INFO L495 AbstractCegarLoop]: Abstraction has 3262 states and 4378 transitions. [2023-11-29 04:11:33,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 04:11:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4378 transitions. [2023-11-29 04:11:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 04:11:33,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:33,882 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:11:33,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 04:11:34,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:34,083 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:34,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:34,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1306437985, now seen corresponding path program 1 times [2023-11-29 04:11:34,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:34,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418370810] [2023-11-29 04:11:34,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:34,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:34,090 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:34,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002227300] [2023-11-29 04:11:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:34,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:34,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:34,092 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:34,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 04:11:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:34,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:11:34,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:11:34,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:11:34,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:34,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418370810] [2023-11-29 04:11:34,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:34,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002227300] [2023-11-29 04:11:34,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002227300] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:11:34,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:11:34,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:11:34,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996433606] [2023-11-29 04:11:34,392 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:34,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:11:34,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:34,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:11:34,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:11:34,393 INFO L87 Difference]: Start difference. First operand 3262 states and 4378 transitions. Second operand has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 10 states have internal predecessors, (136), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:11:37,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:37,619 INFO L93 Difference]: Finished difference Result 4507 states and 5949 transitions. [2023-11-29 04:11:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 04:11:37,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 10 states have internal predecessors, (136), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 128 [2023-11-29 04:11:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:37,626 INFO L225 Difference]: With dead ends: 4507 [2023-11-29 04:11:37,626 INFO L226 Difference]: Without dead ends: 4506 [2023-11-29 04:11:37,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=877, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 04:11:37,628 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 643 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:37,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1355 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:11:37,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2023-11-29 04:11:39,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 4125. [2023-11-29 04:11:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 3596 states have (on average 1.2741935483870968) internal successors, (4582), 3638 states have internal predecessors, (4582), 484 states have call successors, (484), 2 states have call predecessors, (484), 2 states have return successors, (484), 484 states have call predecessors, (484), 484 states have call successors, (484) [2023-11-29 04:11:39,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5550 transitions. [2023-11-29 04:11:39,576 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5550 transitions. Word has length 128 [2023-11-29 04:11:39,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:39,576 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5550 transitions. [2023-11-29 04:11:39,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 10 states have internal predecessors, (136), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:11:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5550 transitions. [2023-11-29 04:11:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 04:11:39,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:39,577 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:11:39,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 04:11:39,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:39,778 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:39,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:39,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2053136726, now seen corresponding path program 1 times [2023-11-29 04:11:39,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:39,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625775408] [2023-11-29 04:11:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:39,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:39,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:39,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636608572] [2023-11-29 04:11:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:39,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:39,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:39,787 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:39,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 04:11:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:39,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:11:39,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:11:40,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:40,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:40,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625775408] [2023-11-29 04:11:40,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:40,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636608572] [2023-11-29 04:11:40,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636608572] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:11:40,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:11:40,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:11:40,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46258807] [2023-11-29 04:11:40,240 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:40,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:11:40,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:40,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:11:40,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:11:40,241 INFO L87 Difference]: Start difference. First operand 4125 states and 5550 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:11:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:42,555 INFO L93 Difference]: Finished difference Result 4319 states and 5766 transitions. [2023-11-29 04:11:42,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:11:42,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 128 [2023-11-29 04:11:42,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:42,561 INFO L225 Difference]: With dead ends: 4319 [2023-11-29 04:11:42,561 INFO L226 Difference]: Without dead ends: 4318 [2023-11-29 04:11:42,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:11:42,562 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 190 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:42,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 387 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:11:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2023-11-29 04:11:44,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 4132. [2023-11-29 04:11:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4132 states, 3603 states have (on average 1.2736608381903969) internal successors, (4589), 3645 states have internal predecessors, (4589), 484 states have call successors, (484), 2 states have call predecessors, (484), 2 states have return successors, (484), 484 states have call predecessors, (484), 484 states have call successors, (484) [2023-11-29 04:11:44,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4132 states to 4132 states and 5557 transitions. [2023-11-29 04:11:44,607 INFO L78 Accepts]: Start accepts. Automaton has 4132 states and 5557 transitions. Word has length 128 [2023-11-29 04:11:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:44,607 INFO L495 AbstractCegarLoop]: Abstraction has 4132 states and 5557 transitions. [2023-11-29 04:11:44,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:11:44,607 INFO L276 IsEmpty]: Start isEmpty. Operand 4132 states and 5557 transitions. [2023-11-29 04:11:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 04:11:44,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:44,608 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:11:44,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 04:11:44,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:44,809 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:44,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash -97845430, now seen corresponding path program 1 times [2023-11-29 04:11:44,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:44,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638213264] [2023-11-29 04:11:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:44,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:44,818 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:44,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316524977] [2023-11-29 04:11:44,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:44,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:44,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:44,819 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:44,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 04:11:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:44,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:11:44,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 10 proven. 35 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:11:45,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:45,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638213264] [2023-11-29 04:11:45,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316524977] [2023-11-29 04:11:45,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316524977] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:11:45,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:11:45,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:11:45,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034846408] [2023-11-29 04:11:45,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:45,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:11:45,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:45,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:11:45,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:11:45,125 INFO L87 Difference]: Start difference. First operand 4132 states and 5557 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:11:47,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:47,919 INFO L93 Difference]: Finished difference Result 4599 states and 6136 transitions. [2023-11-29 04:11:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:11:47,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 127 [2023-11-29 04:11:47,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:47,925 INFO L225 Difference]: With dead ends: 4599 [2023-11-29 04:11:47,925 INFO L226 Difference]: Without dead ends: 4598 [2023-11-29 04:11:47,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:11:47,927 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 486 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:47,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1381 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:11:47,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2023-11-29 04:11:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4282. [2023-11-29 04:11:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 3733 states have (on average 1.2756496115724618) internal successors, (4762), 3775 states have internal predecessors, (4762), 504 states have call successors, (504), 2 states have call predecessors, (504), 2 states have return successors, (504), 504 states have call predecessors, (504), 504 states have call successors, (504) [2023-11-29 04:11:50,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 5770 transitions. [2023-11-29 04:11:50,068 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 5770 transitions. Word has length 127 [2023-11-29 04:11:50,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:50,068 INFO L495 AbstractCegarLoop]: Abstraction has 4282 states and 5770 transitions. [2023-11-29 04:11:50,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:11:50,069 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 5770 transitions. [2023-11-29 04:11:50,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 04:11:50,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:50,070 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:11:50,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2023-11-29 04:11:50,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:50,272 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:50,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:50,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2130022008, now seen corresponding path program 1 times [2023-11-29 04:11:50,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:50,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572112756] [2023-11-29 04:11:50,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:50,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:50,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:50,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648811295] [2023-11-29 04:11:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:50,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:50,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:50,308 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:50,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 04:11:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:50,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:11:50,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 31 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:11:51,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:11:51,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:51,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572112756] [2023-11-29 04:11:51,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:51,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648811295] [2023-11-29 04:11:51,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648811295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:11:51,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:11:51,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:11:51,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875289245] [2023-11-29 04:11:51,315 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:11:51,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:11:51,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:51,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:11:51,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:11:51,316 INFO L87 Difference]: Start difference. First operand 4282 states and 5770 transitions. Second operand has 11 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:11:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:54,368 INFO L93 Difference]: Finished difference Result 4371 states and 5830 transitions. [2023-11-29 04:11:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:11:54,369 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 136 [2023-11-29 04:11:54,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:54,373 INFO L225 Difference]: With dead ends: 4371 [2023-11-29 04:11:54,373 INFO L226 Difference]: Without dead ends: 4369 [2023-11-29 04:11:54,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:11:54,374 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 246 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:54,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 965 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:11:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2023-11-29 04:11:56,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 4289. [2023-11-29 04:11:56,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 3740 states have (on average 1.2751336898395722) internal successors, (4769), 3782 states have internal predecessors, (4769), 504 states have call successors, (504), 2 states have call predecessors, (504), 2 states have return successors, (504), 504 states have call predecessors, (504), 504 states have call successors, (504) [2023-11-29 04:11:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 5777 transitions. [2023-11-29 04:11:56,112 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 5777 transitions. Word has length 136 [2023-11-29 04:11:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:56,112 INFO L495 AbstractCegarLoop]: Abstraction has 4289 states and 5777 transitions. [2023-11-29 04:11:56,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:11:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 5777 transitions. [2023-11-29 04:11:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 04:11:56,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:56,113 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:11:56,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2023-11-29 04:11:56,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2023-11-29 04:11:56,314 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:11:56,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1650925917, now seen corresponding path program 1 times [2023-11-29 04:11:56,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:56,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069188001] [2023-11-29 04:11:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:56,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:56,323 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:56,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307645380] [2023-11-29 04:11:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:56,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:56,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:56,325 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:56,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 04:11:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:56,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 04:11:56,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:57,431 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:11:57,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:12:01,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:12:01,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069188001] [2023-11-29 04:12:01,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:12:01,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307645380] [2023-11-29 04:12:01,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307645380] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:12:01,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:12:01,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:12:01,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997765077] [2023-11-29 04:12:01,764 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:12:01,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:12:01,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:12:01,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:12:01,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=254, Unknown=1, NotChecked=0, Total=306 [2023-11-29 04:12:01,766 INFO L87 Difference]: Start difference. First operand 4289 states and 5777 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:12:05,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:12:05,799 INFO L93 Difference]: Finished difference Result 4913 states and 6543 transitions. [2023-11-29 04:12:05,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:12:05,800 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 137 [2023-11-29 04:12:05,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:12:05,806 INFO L225 Difference]: With dead ends: 4913 [2023-11-29 04:12:05,807 INFO L226 Difference]: Without dead ends: 4911 [2023-11-29 04:12:05,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=121, Invalid=580, Unknown=1, NotChecked=0, Total=702 [2023-11-29 04:12:05,808 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 636 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:12:05,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 722 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:12:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2023-11-29 04:12:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4299. [2023-11-29 04:12:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 3750 states have (on average 1.2746666666666666) internal successors, (4780), 3792 states have internal predecessors, (4780), 504 states have call successors, (504), 2 states have call predecessors, (504), 2 states have return successors, (504), 504 states have call predecessors, (504), 504 states have call successors, (504) [2023-11-29 04:12:07,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 5788 transitions. [2023-11-29 04:12:07,629 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 5788 transitions. Word has length 137 [2023-11-29 04:12:07,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:12:07,630 INFO L495 AbstractCegarLoop]: Abstraction has 4299 states and 5788 transitions. [2023-11-29 04:12:07,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:12:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 5788 transitions. [2023-11-29 04:12:07,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 04:12:07,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:12:07,631 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:12:07,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2023-11-29 04:12:07,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2023-11-29 04:12:07,831 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:12:07,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:12:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1606172887, now seen corresponding path program 1 times [2023-11-29 04:12:07,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:12:07,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469213008] [2023-11-29 04:12:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:07,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:12:07,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:12:07,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557314118] [2023-11-29 04:12:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:07,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:12:07,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:12:07,838 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:12:07,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 04:12:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:12:07,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:12:07,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:12:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 31 proven. 18 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:12:08,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:12:08,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:12:08,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469213008] [2023-11-29 04:12:08,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:12:08,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557314118] [2023-11-29 04:12:08,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557314118] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:12:08,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:12:08,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:12:08,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935758596] [2023-11-29 04:12:08,896 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:12:08,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:12:08,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:12:08,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:12:08,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:12:08,897 INFO L87 Difference]: Start difference. First operand 4299 states and 5788 transitions. Second operand has 11 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:12:12,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:12:12,918 INFO L93 Difference]: Finished difference Result 4381 states and 5838 transitions. [2023-11-29 04:12:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:12:12,919 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 137 [2023-11-29 04:12:12,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:12:12,923 INFO L225 Difference]: With dead ends: 4381 [2023-11-29 04:12:12,923 INFO L226 Difference]: Without dead ends: 4379 [2023-11-29 04:12:12,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:12:12,924 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 272 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:12:12,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 1022 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:12:12,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2023-11-29 04:12:14,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4300. [2023-11-29 04:12:14,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 3751 states have (on average 1.27406025059984) internal successors, (4779), 3793 states have internal predecessors, (4779), 504 states have call successors, (504), 2 states have call predecessors, (504), 2 states have return successors, (504), 504 states have call predecessors, (504), 504 states have call successors, (504) [2023-11-29 04:12:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 5787 transitions. [2023-11-29 04:12:14,994 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 5787 transitions. Word has length 137 [2023-11-29 04:12:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:12:14,994 INFO L495 AbstractCegarLoop]: Abstraction has 4300 states and 5787 transitions. [2023-11-29 04:12:14,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:12:14,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 5787 transitions. [2023-11-29 04:12:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 04:12:14,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:12:14,996 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:12:15,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2023-11-29 04:12:15,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 04:12:15,197 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:12:15,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:12:15,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1386164383, now seen corresponding path program 1 times [2023-11-29 04:12:15,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:12:15,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071413057] [2023-11-29 04:12:15,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:15,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:12:15,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:12:15,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781291969] [2023-11-29 04:12:15,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:15,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:12:15,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:12:15,205 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:12:15,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 04:12:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:12:15,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:12:15,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:12:15,738 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:12:15,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:12:16,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:12:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071413057] [2023-11-29 04:12:16,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:12:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781291969] [2023-11-29 04:12:16,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781291969] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:12:16,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:12:16,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:12:16,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458829636] [2023-11-29 04:12:16,459 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:12:16,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:12:16,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:12:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:12:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:12:16,460 INFO L87 Difference]: Start difference. First operand 4300 states and 5787 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:12:20,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:12:20,088 INFO L93 Difference]: Finished difference Result 4379 states and 5835 transitions. [2023-11-29 04:12:20,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:12:20,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2023-11-29 04:12:20,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:12:20,095 INFO L225 Difference]: With dead ends: 4379 [2023-11-29 04:12:20,095 INFO L226 Difference]: Without dead ends: 4378 [2023-11-29 04:12:20,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:12:20,097 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 144 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:12:20,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 887 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:12:20,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2023-11-29 04:12:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 4301. [2023-11-29 04:12:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 3752 states have (on average 1.2739872068230278) internal successors, (4780), 3794 states have internal predecessors, (4780), 504 states have call successors, (504), 2 states have call predecessors, (504), 2 states have return successors, (504), 504 states have call predecessors, (504), 504 states have call successors, (504) [2023-11-29 04:12:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5788 transitions. [2023-11-29 04:12:22,245 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5788 transitions. Word has length 141 [2023-11-29 04:12:22,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:12:22,245 INFO L495 AbstractCegarLoop]: Abstraction has 4301 states and 5788 transitions. [2023-11-29 04:12:22,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:12:22,245 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5788 transitions. [2023-11-29 04:12:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:12:22,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:12:22,247 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:12:22,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2023-11-29 04:12:22,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 04:12:22,447 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:12:22,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:12:22,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1683557775, now seen corresponding path program 2 times [2023-11-29 04:12:22,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:12:22,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955985571] [2023-11-29 04:12:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:22,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:12:22,455 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:12:22,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956423194] [2023-11-29 04:12:22,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:12:22,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:12:22,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:12:22,456 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:12:22,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 04:12:22,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:12:22,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:12:22,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:12:22,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:12:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:12:23,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:12:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:12:23,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:12:23,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955985571] [2023-11-29 04:12:23,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:12:23,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956423194] [2023-11-29 04:12:23,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956423194] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:12:23,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:12:23,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 04:12:23,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713299697] [2023-11-29 04:12:23,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:12:23,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 04:12:23,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:12:23,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 04:12:23,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:12:23,603 INFO L87 Difference]: Start difference. First operand 4301 states and 5788 transitions. Second operand has 20 states, 19 states have (on average 8.842105263157896) internal successors, (168), 20 states have internal predecessors, (168), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:12:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:12:42,534 INFO L93 Difference]: Finished difference Result 4660 states and 6115 transitions. [2023-11-29 04:12:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 04:12:42,535 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.842105263157896) internal successors, (168), 20 states have internal predecessors, (168), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 142 [2023-11-29 04:12:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:12:42,539 INFO L225 Difference]: With dead ends: 4660 [2023-11-29 04:12:42,539 INFO L226 Difference]: Without dead ends: 4659 [2023-11-29 04:12:42,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=713, Invalid=2043, Unknown=0, NotChecked=0, Total=2756 [2023-11-29 04:12:42,540 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 1719 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:12:42,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1723 Valid, 1082 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-11-29 04:12:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2023-11-29 04:12:44,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 4345. [2023-11-29 04:12:44,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 3792 states have (on average 1.2721518987341771) internal successors, (4824), 3834 states have internal predecessors, (4824), 508 states have call successors, (508), 2 states have call predecessors, (508), 2 states have return successors, (508), 508 states have call predecessors, (508), 508 states have call successors, (508) [2023-11-29 04:12:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 5840 transitions. [2023-11-29 04:12:44,681 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 5840 transitions. Word has length 142 [2023-11-29 04:12:44,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:12:44,681 INFO L495 AbstractCegarLoop]: Abstraction has 4345 states and 5840 transitions. [2023-11-29 04:12:44,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.842105263157896) internal successors, (168), 20 states have internal predecessors, (168), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-29 04:12:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 5840 transitions. [2023-11-29 04:12:44,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:12:44,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:12:44,682 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:12:44,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 04:12:44,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 04:12:44,883 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:12:44,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:12:44,883 INFO L85 PathProgramCache]: Analyzing trace with hash -21422727, now seen corresponding path program 1 times [2023-11-29 04:12:44,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:12:44,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565965272] [2023-11-29 04:12:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:44,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:12:44,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:12:44,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884638765] [2023-11-29 04:12:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:44,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:12:44,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:12:44,893 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:12:44,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 04:12:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:12:44,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-29 04:12:44,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:12:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 12 proven. 54 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 04:12:46,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:12:51,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:12:51,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565965272] [2023-11-29 04:12:51,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:12:51,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884638765] [2023-11-29 04:12:51,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884638765] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:12:51,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:12:51,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:12:51,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64169956] [2023-11-29 04:12:51,925 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:12:51,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:12:51,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:12:51,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:12:51,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=396, Unknown=1, NotChecked=0, Total=462 [2023-11-29 04:12:51,926 INFO L87 Difference]: Start difference. First operand 4345 states and 5840 transitions. Second operand has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:12:57,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:12:57,641 INFO L93 Difference]: Finished difference Result 4956 states and 6592 transitions. [2023-11-29 04:12:57,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:12:57,641 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 142 [2023-11-29 04:12:57,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:12:57,646 INFO L225 Difference]: With dead ends: 4956 [2023-11-29 04:12:57,646 INFO L226 Difference]: Without dead ends: 4955 [2023-11-29 04:12:57,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=119, Invalid=692, Unknown=1, NotChecked=0, Total=812 [2023-11-29 04:12:57,647 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 306 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:12:57,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1033 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2632 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:12:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2023-11-29 04:12:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4349. [2023-11-29 04:12:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4349 states, 3796 states have (on average 1.2718651211801897) internal successors, (4828), 3838 states have internal predecessors, (4828), 508 states have call successors, (508), 2 states have call predecessors, (508), 2 states have return successors, (508), 508 states have call predecessors, (508), 508 states have call successors, (508) [2023-11-29 04:12:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5844 transitions. [2023-11-29 04:12:59,714 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5844 transitions. Word has length 142 [2023-11-29 04:12:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:12:59,715 INFO L495 AbstractCegarLoop]: Abstraction has 4349 states and 5844 transitions. [2023-11-29 04:12:59,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:12:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5844 transitions. [2023-11-29 04:12:59,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 04:12:59,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:12:59,716 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:12:59,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2023-11-29 04:12:59,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 04:12:59,916 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:12:59,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:12:59,917 INFO L85 PathProgramCache]: Analyzing trace with hash 650683632, now seen corresponding path program 2 times [2023-11-29 04:12:59,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:12:59,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677864666] [2023-11-29 04:12:59,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:12:59,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:12:59,924 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:12:59,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301017230] [2023-11-29 04:12:59,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:12:59,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:12:59,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:12:59,926 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:12:59,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 04:13:00,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:13:00,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:13:00,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:13:00,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:13:00,492 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:00,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:00,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677864666] [2023-11-29 04:13:00,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:13:00,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301017230] [2023-11-29 04:13:00,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301017230] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:00,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:00,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:13:00,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247295254] [2023-11-29 04:13:00,583 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:00,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:13:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:00,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:13:00,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:13:00,584 INFO L87 Difference]: Start difference. First operand 4349 states and 5844 transitions. Second operand has 11 states, 10 states have (on average 8.9) internal successors, (89), 11 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:13:03,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:03,266 INFO L93 Difference]: Finished difference Result 4427 states and 5902 transitions. [2023-11-29 04:13:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:13:03,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 11 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 143 [2023-11-29 04:13:03,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:03,272 INFO L225 Difference]: With dead ends: 4427 [2023-11-29 04:13:03,272 INFO L226 Difference]: Without dead ends: 4426 [2023-11-29 04:13:03,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:13:03,273 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 230 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:03,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 608 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:13:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2023-11-29 04:13:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4386. [2023-11-29 04:13:05,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 3833 states have (on average 1.2705452648056352) internal successors, (4870), 3875 states have internal predecessors, (4870), 508 states have call successors, (508), 2 states have call predecessors, (508), 2 states have return successors, (508), 508 states have call predecessors, (508), 508 states have call successors, (508) [2023-11-29 04:13:05,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 5886 transitions. [2023-11-29 04:13:05,423 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 5886 transitions. Word has length 143 [2023-11-29 04:13:05,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:05,423 INFO L495 AbstractCegarLoop]: Abstraction has 4386 states and 5886 transitions. [2023-11-29 04:13:05,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 11 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:13:05,424 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 5886 transitions. [2023-11-29 04:13:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 04:13:05,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:05,424 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:05,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 04:13:05,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2023-11-29 04:13:05,625 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:13:05,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:05,625 INFO L85 PathProgramCache]: Analyzing trace with hash -664104349, now seen corresponding path program 1 times [2023-11-29 04:13:05,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:05,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723255521] [2023-11-29 04:13:05,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:05,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:05,632 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:13:05,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135144451] [2023-11-29 04:13:05,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:05,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:05,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:05,633 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:05,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 04:13:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:05,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:13:05,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:13:06,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:08,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:08,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723255521] [2023-11-29 04:13:08,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:13:08,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135144451] [2023-11-29 04:13:08,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135144451] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:08,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:08,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:13:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187036729] [2023-11-29 04:13:08,282 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:08,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:13:08,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:08,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:13:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:13:08,283 INFO L87 Difference]: Start difference. First operand 4386 states and 5886 transitions. Second operand has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 15 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:13:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:12,504 INFO L93 Difference]: Finished difference Result 5026 states and 6679 transitions. [2023-11-29 04:13:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:13:12,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 15 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 143 [2023-11-29 04:13:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:12,511 INFO L225 Difference]: With dead ends: 5026 [2023-11-29 04:13:12,511 INFO L226 Difference]: Without dead ends: 5024 [2023-11-29 04:13:12,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:13:12,512 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 393 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:12,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 975 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:13:12,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2023-11-29 04:13:14,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 4400. [2023-11-29 04:13:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 3846 states have (on average 1.2696307852314093) internal successors, (4883), 3888 states have internal predecessors, (4883), 509 states have call successors, (509), 2 states have call predecessors, (509), 2 states have return successors, (509), 509 states have call predecessors, (509), 509 states have call successors, (509) [2023-11-29 04:13:14,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 5901 transitions. [2023-11-29 04:13:14,652 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 5901 transitions. Word has length 143 [2023-11-29 04:13:14,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:14,652 INFO L495 AbstractCegarLoop]: Abstraction has 4400 states and 5901 transitions. [2023-11-29 04:13:14,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 15 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:13:14,652 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 5901 transitions. [2023-11-29 04:13:14,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 04:13:14,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:14,653 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:13:14,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 04:13:14,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2023-11-29 04:13:14,853 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:13:14,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:14,854 INFO L85 PathProgramCache]: Analyzing trace with hash 604739689, now seen corresponding path program 1 times [2023-11-29 04:13:14,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:14,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223526693] [2023-11-29 04:13:14,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:14,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:14,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:13:14,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023767107] [2023-11-29 04:13:14,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:14,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:14,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:14,863 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:14,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 04:13:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:14,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:13:14,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 2 proven. 58 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 04:13:15,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:15,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:15,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223526693] [2023-11-29 04:13:15,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:13:15,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023767107] [2023-11-29 04:13:15,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023767107] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:15,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:15,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:13:15,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347220401] [2023-11-29 04:13:15,487 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:15,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:13:15,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:15,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:13:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:13:15,488 INFO L87 Difference]: Start difference. First operand 4400 states and 5901 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:13:19,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:19,408 INFO L93 Difference]: Finished difference Result 6808 states and 9154 transitions. [2023-11-29 04:13:19,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:13:19,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 145 [2023-11-29 04:13:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:19,417 INFO L225 Difference]: With dead ends: 6808 [2023-11-29 04:13:19,417 INFO L226 Difference]: Without dead ends: 6806 [2023-11-29 04:13:19,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:13:19,419 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 279 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:19,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 890 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:13:19,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6806 states. [2023-11-29 04:13:22,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6806 to 6562. [2023-11-29 04:13:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 5732 states have (on average 1.272854152128402) internal successors, (7296), 5774 states have internal predecessors, (7296), 785 states have call successors, (785), 2 states have call predecessors, (785), 2 states have return successors, (785), 785 states have call predecessors, (785), 785 states have call successors, (785) [2023-11-29 04:13:22,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 8866 transitions. [2023-11-29 04:13:22,439 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 8866 transitions. Word has length 145 [2023-11-29 04:13:22,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:22,440 INFO L495 AbstractCegarLoop]: Abstraction has 6562 states and 8866 transitions. [2023-11-29 04:13:22,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:13:22,440 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 8866 transitions. [2023-11-29 04:13:22,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 04:13:22,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:22,441 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:22,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2023-11-29 04:13:22,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2023-11-29 04:13:22,641 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:13:22,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:22,642 INFO L85 PathProgramCache]: Analyzing trace with hash 887601851, now seen corresponding path program 1 times [2023-11-29 04:13:22,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:22,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595708398] [2023-11-29 04:13:22,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:22,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:22,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:13:22,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991295744] [2023-11-29 04:13:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:22,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:22,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:22,655 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:22,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 04:13:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:22,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:13:22,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:13:24,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:25,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:25,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595708398] [2023-11-29 04:13:25,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:13:25,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991295744] [2023-11-29 04:13:25,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991295744] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:25,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:25,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:13:25,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600094482] [2023-11-29 04:13:25,816 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:25,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:13:25,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:25,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:13:25,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:13:25,816 INFO L87 Difference]: Start difference. First operand 6562 states and 8866 transitions. Second operand has 16 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:13:33,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:33,500 INFO L93 Difference]: Finished difference Result 6654 states and 8934 transitions. [2023-11-29 04:13:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 04:13:33,501 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 144 [2023-11-29 04:13:33,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:33,508 INFO L225 Difference]: With dead ends: 6654 [2023-11-29 04:13:33,508 INFO L226 Difference]: Without dead ends: 6652 [2023-11-29 04:13:33,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 04:13:33,510 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 282 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:33,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1029 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 04:13:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6652 states. [2023-11-29 04:13:36,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6652 to 6565. [2023-11-29 04:13:36,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6565 states, 5735 states have (on average 1.2664341761115954) internal successors, (7263), 5777 states have internal predecessors, (7263), 785 states have call successors, (785), 2 states have call predecessors, (785), 2 states have return successors, (785), 785 states have call predecessors, (785), 785 states have call successors, (785) [2023-11-29 04:13:36,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6565 states to 6565 states and 8833 transitions. [2023-11-29 04:13:36,812 INFO L78 Accepts]: Start accepts. Automaton has 6565 states and 8833 transitions. Word has length 144 [2023-11-29 04:13:36,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:36,812 INFO L495 AbstractCegarLoop]: Abstraction has 6565 states and 8833 transitions. [2023-11-29 04:13:36,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:13:36,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6565 states and 8833 transitions. [2023-11-29 04:13:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 04:13:36,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:36,813 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 04:13:36,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2023-11-29 04:13:37,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2023-11-29 04:13:37,013 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:13:37,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:37,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1567061280, now seen corresponding path program 1 times [2023-11-29 04:13:37,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:37,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3485185] [2023-11-29 04:13:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:37,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:37,021 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:13:37,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102361928] [2023-11-29 04:13:37,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:37,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:37,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:37,022 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:37,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 04:13:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:13:37,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:13:37,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 04:13:37,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:38,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:38,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3485185] [2023-11-29 04:13:38,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:13:38,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102361928] [2023-11-29 04:13:38,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102361928] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:13:38,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:13:38,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:13:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153548387] [2023-11-29 04:13:38,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:38,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:13:38,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:13:38,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:13:38,027 INFO L87 Difference]: Start difference. First operand 6565 states and 8833 transitions. Second operand has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:13:42,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:13:42,329 INFO L93 Difference]: Finished difference Result 6686 states and 8961 transitions. [2023-11-29 04:13:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:13:42,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 146 [2023-11-29 04:13:42,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:13:42,338 INFO L225 Difference]: With dead ends: 6686 [2023-11-29 04:13:42,338 INFO L226 Difference]: Without dead ends: 6684 [2023-11-29 04:13:42,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2023-11-29 04:13:42,340 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 434 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:13:42,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 730 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:13:42,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6684 states. [2023-11-29 04:13:45,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6684 to 6657. [2023-11-29 04:13:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 5815 states have (on average 1.263628546861565) internal successors, (7348), 5857 states have internal predecessors, (7348), 797 states have call successors, (797), 2 states have call predecessors, (797), 2 states have return successors, (797), 797 states have call predecessors, (797), 797 states have call successors, (797) [2023-11-29 04:13:45,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 8942 transitions. [2023-11-29 04:13:45,777 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 8942 transitions. Word has length 146 [2023-11-29 04:13:45,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:13:45,777 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 8942 transitions. [2023-11-29 04:13:45,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:13:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 8942 transitions. [2023-11-29 04:13:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 04:13:45,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:13:45,778 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:13:45,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 04:13:45,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable108 [2023-11-29 04:13:45,979 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 04:13:45,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:13:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1758249710, now seen corresponding path program 2 times [2023-11-29 04:13:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:13:45,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093028424] [2023-11-29 04:13:45,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:13:45,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:13:45,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:13:45,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097371387] [2023-11-29 04:13:45,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:13:45,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:13:45,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:13:45,988 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:13:45,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc9f715b-1195-4f8a-b4b2-1413ae69773f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 04:13:46,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:13:46,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:13:46,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:13:46,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:13:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:13:46,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:46,985 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:13:46,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:13:46,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093028424] [2023-11-29 04:13:46,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:13:46,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097371387] [2023-11-29 04:13:46,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097371387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:13:46,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:13:46,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-29 04:13:46,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956859321] [2023-11-29 04:13:46,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:46,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 04:13:46,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:46,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 04:13:46,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:13:46,987 INFO L87 Difference]: Start difference. First operand 6657 states and 8942 transitions. Second operand has 22 states, 21 states have (on average 8.285714285714286) internal successors, (174), 22 states have internal predecessors, (174), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20)